This roofing encyclopedia explains the most important technical terms related to the roofing trade in an understandable and practical way. Ideal for all apprentices, trade professionals, and masters who are looking for sound knowledge, want to understand interrelationships, and wish to classify technical terms with confidence.

Covering Flashing (Abdeckblech)

The covering flashing reliably protects exposed component edges such as parapets, verges, wall copings, or dormers from rain, snow, and wind. By targeted water drainage, the covering flashing prevents moisture from penetrating the roof structure and contributes significantly to the rainproofing and longevity of the roof.

A covering flashing is usually made of titanium zinc, aluminum, copper, or stainless steel. These materials are weather-resistant, durable, and excellently suited for use on roofs throughout Europe. Depending on the roof shape, the sheet metal is individually bent and professionally installed. Particularly important here are sufficient overhangs, clean folding techniques, and functional expansion compensation to avoid damage caused by temperature differences.

Whether for new construction or renovation: A correctly executed covering flashing combines technical protection with a high-quality appearance and is an integral part of professional roofing work.

Abbund (Timber Framing/Carpentry Joinery)

In the carpentry trade, "Abbund" refers to the precise prefabrication of timber constructions for roof trusses and wooden structures. In this process, components such as rafters, purlins, collar beams, or struts are cut to millimeter precision and fitted with traditional or modern timber joints. The goal of the "Abbund" is a precise fit during assembly on the construction site, which saves time and minimizes errors.

In Europe, "Abbund" is now frequently carried out mechanically in prefabrication centers or carpentry shops using CNC technology. This allows for maximum dimensional accuracy, consistent quality, and efficient processing of structural solid timber (KVH) or glued laminated timber (BSH). At the same time, traditional manual joinery remains important, for example in renovations or on listed buildings.

A cleanly executed "Abbund" is crucial for the stability, longevity, and load-bearing capacity of a roof truss. Especially for new buildings, vertical extensions, or roof renovations, professional joinery forms the foundation for the economical and proper implementation of modern timber constructions.

Connection Flashing (Anschlussblech)

The connection flashing ensures tight transitions between roof surfaces and adjacent components. It is used wherever the roof meets walls, chimneys, dormers, roof windows, or parapets. The task of the connection flashing is to safely divert rainwater and prevent moisture from penetrating the roof structure.

A connection flashing is usually made of titanium zinc, aluminum, copper, or stainless steel. These materials are durable, corrosion-resistant, and ideally suited for the climatic conditions in Europe. Depending on the roof shape, the sheet metal is used as a wall connection, chimney connection, or roof window connection. Professional installation with correct overlapping, clean folding technique, and sufficient expansion compensation is crucial.

A professionally executed connection flashing sustainably increases the rain safety, service life, and value retention of pitched and flat roofs.

Parapet (Attika)

The parapet is a horizontal edge finish of flat roofs and plays a central role in modern roofing and sheet metal work. It protrudes above the roof surface and serves both for visual design and as structural protection for the roof construction. Parapets are particularly widespread on flat roofs of residential, commercial, and industrial buildings in Europe.

A professionally executed parapet protects the roof waterproofing from UV radiation, wind, and mechanical loads. The correct waterproofing in the parapet area is crucial, usually in combination with a parapet covering flashing made of titanium zinc, aluminum, or stainless steel. This safely diverts rainwater and prevents moisture damage to the masonry and insulation. Whether for new construction or renovation: The parapet contributes significantly to the rain safety, longevity, and value of a flat roof and requires precise manual execution by experienced roofers and sheet metal workers.

Professional tools for parapet flashings

Since parapet coverings are fully visible, the fold connections must be closed absolutely free of scratches and dents.

• Scratch-free folding: For the clean final closing of wall and parapet coverings, sheet metal workers rely on the adjustable FALZSID parapet fold closer Vario 3.0.

• Sheet metal cutting: Long, straight cuts on the covering sheets can be made on the move directly at the flat roof edge with the WUKO roller shear 1010 or the WUKO Cutter 1070 without chips or distortion.

• Cleat fastening: For setting the fastening brackets in tight installation situations on the parapet masonry, professionals reach for the compact KIRSCHEN wood chisel short with leather holster.

Video: Parapet covering correctly executed - DDH Dachwissen | dach-holz.tv

Above-Rafter Insulation (Aufsparrendämmung)

Above-rafter insulation is a particularly efficient form of thermal insulation for pitched roofs and is considered a high-quality solution in modern roofing. In this method, the insulation material is laid above the rafters, creating a continuous insulation layer without thermal bridges. This construction method ensures excellent energy efficiency and a comfortable indoor climate – ideal for new buildings and roof renovations.

Typically, pressure-resistant insulation boards made of wood fiber, PUR, PIR, or mineral wool are used. Above-rafter insulation not only improves thermal and heat protection but also preserves the visible wood appearance in the interior. In combination with a professionally installed underlay membrane and airtight layer, it meets current energy requirements (GEG).

Due to its high insulating performance, above-rafter insulation sustainably increases living comfort, property value, and the sustainability of a roof, making it a future-proof insulation variant.

Concrete Roof Tile

The concrete roof tile is a widely used roofing material in the modern roofing trade and is particularly popular for pitched roofs in Germany. It is manufactured from a mixture of cement, sand, water, and color pigments and impresses with its high stability, dimensional accuracy, and cost-effectiveness. Thanks to modern coating techniques, concrete roof tiles are durable, color-fast, and resistant to frost, UV radiation, and weather influences.

Concrete roof tiles are suitable for various roof pitches and are available in numerous shapes, colors, and surfaces. They offer high rain safety and can be installed efficiently, which makes them attractive for both new buildings and roof renovations. Due to their higher dead weight, they also contribute to good wind protection.

A professionally installed concrete roof tile ensures a robust, low-maintenance, and durable roof that optimally combines functionality and modern design.

Plain Tile (Biberschwanz)

The "Biberschwanz" (beaver tail) is a classic clay roof tile and counts among the most traditional roofing types in the roofing trade. The beaver tail is frequently used, especially for historical buildings, old buildings, and listed roof structures in Germany. Its characteristic feature is its flat shape with a rounded or segmented finish, which creates a particularly elegant and uniform roof appearance.

Beaver tail tiles are laid in double or crown tiling and are especially suitable for steeper roof pitches. The multi-layer installation provides high rain safety, even during heavy precipitation. Manufactured from fired clay, beaver tail tiles are durable, color-fast, and breathable.

Despite modern roofing materials, the beaver tail remains a sought-after solution when craftsmanship quality, tradition, and high-quality architecture are in the foreground – ideal for stylish roof renovations with regional character.

Bitumen Membrane

The bitumen membrane is a proven waterproofing material in the roofing trade and is primarily used for flat roofs, garages, balconies, and terraces. It serves for reliable sealing against rain, snow, and standing water and has been standard in the field of structural waterproofing in Europe for decades.

Bitumen membranes consist of a carrier inlay made of polyester or glass fleece coated with modified bitumen. Depending on the design, they are welded, bonded, or mechanically fastened. Modern polymer bitumen membranes are characterized by high tear resistance, flexibility, and longevity and remain dimensionally stable even at strong temperature differences.

Especially in multi-layer waterproofing systems, bitumen membranes offer high rain safety and resilience. When processed professionally, they fulfill current technical regulations and ensure permanent, economical, and secure waterproofing of flat roof structures in new construction and renovations.

Glued Laminated Timber (BSH)

Glued laminated timber (BSH) is a high-quality engineered wood product and plays a central role in modern carpentry and timber construction. It consists of several dried wood laminations that are glued parallel to the fiber. Through this structure, BSH achieves very high load-bearing capacity, dimensional stability, and accuracy well above that of solid timber. In Germany, glued laminated timber is primarily used for purlins, beams, rafters, and wide-span roof structures.

A major advantage of BSH is its low cracking tendency as well as its high resistance to warping and shrinking. This makes it ideal for visible constructions in the roof truss. Furthermore, glued laminated timber is sustainable as it is produced from the renewable raw material wood and meets current building standards and requirements.

Whether for new construction, vertical extension, or roof renovation: Glued laminated timber enables economical, durable, and sophisticated solutions in modern timber and roof construction.

Roof Construction (Dachaufbau)

The roof construction describes the layer sequence of a roof and is crucial for the function, energy efficiency, and longevity of a roof structure. A professionally planned roof construction reliably protects the building from weather, moisture, heat loss, and noise. In Germany, the roof construction is governed by applicable standards and the Building Energy Act (GEG).

Typical components of a roof construction include the roof covering, battens and counter-battens, an underlay membrane, the thermal insulation, as well as vapor barrier or vapor check on the interior side. The exact execution differs depending on the roof shape – pitched roof or flat roof. An airtight layer is particularly important to prevent moisture damage and thermal bridges.

A professionally executed roof construction improves living comfort, lowers energy costs, and increases property value. Whether new construction or renovation: The right roof construction is the foundation for a permanently safe and efficient roof system.

Roof Surface (Dachfläche)

The roof surface denotes the entire inclined or level surface of a roof and is a central metric in the roofing trade. It forms the basis for the planning of roof covering, insulation, waterproofing, and drainage. Anyone wishing to calculate the roof surface requires precise dimensions, the roof shape, and the roof pitch. In Germany, the correct calculation is particularly important for material procurement, cost estimation, and structural planning.

Depending on the roof shape – such as a pitched roof, hipped roof, or flat roof – the calculation of the roof area varies significantly. For sloped roofs, the actual surface area including the pitch is used, not the building's footprint. A precisely determined roof area prevents material shortages, over-ordering, and planning errors.

Whether for new construction, renovation, or energy consulting: the exact roof area is crucial for the cost-effectiveness, rain protection, and energy efficiency of a roof and is a standard part of professional roof planning.

Video: Simple calculation of roof areas

Roof Covering

The roof covering is the outer protective layer of a roof and holds a central role in the roofing trade. It reliably protects the building from rain, snow, wind, and UV radiation while simultaneously shaping the appearance of the house. In Germany, various materials are used depending on the roof shape and regional requirements, including clay tiles, concrete roof tiles, slate, metal, or roofing panels.

The choice of appropriate roof covering is based on roof pitch, structural requirements, weather conditions, and design specifications. Proper installation ensures high rain resistance, wind uplift protection, and the longevity of the roof. Supplementary components such as battens, underlayment, and connections are essential for the overall function.

Whether new construction or renovation: a professionally executed roof covering increases the living comfort, value retention, and energy efficiency of the building and is a decisive quality factor in modern roof construction.

Roof Skin

The roof skin refers to the outermost, weather-exposed layer of a roof and is a central element in the roofing trade. It reliably protects the building from precipitation, wind, snow, and UV radiation and contributes significantly to the rain resistance of the roof. In Germany, depending on the roof shape, the roof skin consists of clay tiles, concrete tiles, slate, metal sheets, or sealing systems.

For pitched roofs, the roof skin usually includes the roof covering, including accessories such as ridges, verges, and connections. For flat roofs, it consists of single or multi-layer sealing membranes. A professionally executed roof skin is decisive in avoiding moisture damage, heat loss, and structural damage.

New construction or roof renovation – a durable roof skin increases weather protection, energy efficiency, and the value retention of a building and is the foundation for a permanently functional roof system.

Roof Pitch

The roof pitch describes the angle of inclination of a roof surface and is a decisive factor in roofing and planning. It is essentially expressed in degrees or percentages and influences the choice of material, rain resistance, and drainage of a roof. In Germany, manufacturers specify a minimum roof pitch for every roof covering, which must be strictly adhered to.

The lower the roof pitch, the higher the requirements for underlayment, sealing, and additional measures. Steep roofs shed rain and snow particularly effectively, while low-pitched roofs must be planned carefully. The roof pitch also impacts structural engineering, aesthetics, and the use of the attic space.

Whether for new construction or roof renovation: a correctly planned roof pitch ensures long-lasting rain resistance, a long service life for the roof covering, and optimal function of the entire roof construction. It is therefore a central building block of professional roof planning.

Gutter

The gutter is a central component of roof drainage and ensures that rainwater is drained from the roof in a controlled manner. It protects the facade, masonry, and foundation from moisture damage and is therefore indispensable for the longevity of a building. In Germany, gutters made of titanium zinc, copper, aluminum, or plastic are used.

Depending on the roof shape, a distinction is made between half-round gutters, box gutters, or special forms. Decisive for the function are the correct gutter size, sufficient slope, and proper attachment with gutter hangers. The water is safely led into the sewage system or infiltration through downpipes.

A correctly installed gutter increases rain protection, preserves the building structure, and reduces maintenance requirements. Whether for new construction or renovation: professional planning and installation of the gutter is an important component of modern roofing and plumbing work.

Concrete Roof Tile

The concrete roof tile is a proven roofing material in the roofing trade and is primarily used on pitched roofs in Germany. Unlike clay tiles, concrete tiles are made of concrete and impress with high dimensional stability, durability, and cost-effectiveness. Modern concrete tiles are finished with resilient coatings that protect them from frost, UV radiation, and weather influences.

Concrete tiles are available in numerous shapes, colors, and surfaces and can be installed efficiently. They offer high rain resistance and are suitable for various roof pitches. Due to their higher dead weight, concrete tiles also contribute to improved wind resistance, making them particularly attractive for exposed locations.

Regardless of the roofing project: a professionally installed concrete tile roof ensures a durable, low-maintenance, and visually appealing roof that combines functionality with modern design.

Roof Truss

The roof truss forms the supporting framework of a roof and is a central element in the carpentry trade. It consists of structural components such as rafters, purlins, collar beams, and struts and safely transfers loads from the roof covering, snow, and wind to the building structure. In Germany, roof trusses are predominantly made of construction-grade timber (KVH) or glued laminated timber (BSH).

Depending on the building shape, various types of roof trusses such as rafter roofs, purlin roofs, or collar beam roofs are used. Precise planning and a secure connection are crucial for stability, longevity, and dimensional accuracy. The roof truss also influences the use of the attic space, such as for residential or technical purposes.

A professionally erected roof truss is the foundation for a permanently stable, safe, and energy-efficient roof system.

Vapor Barrier

The vapor barrier is an essential component in modern roof construction and protects the roof structure from moisture from the interior. It is installed on the room side of the thermal insulation and prevents water vapor from penetrating into the insulation or the roof truss. In Germany, the proper use of a vapor barrier is particularly important to avoid structural damage, mold growth, and heat loss.

Vapor barriers usually consist of plastic films or aluminum composite sheets with a very high diffusion resistance. Decisive for their function is an airtight installation, including neatly sealed joints, connections, and penetrations. Even the smallest leaks can significantly impair effectiveness.

Whether for a pitched or flat roof: a correctly installed vapor barrier increases the energy efficiency, living quality, and service life of the entire roof construction and is a central part of professional roofing and renovation work.

Expansion Compensation

Expansion compensation is an essential component of the roofing and plumbing trade, particularly for metal work on the roof. Metals such as titanium zinc, aluminum, or copper change their length due to temperature differences. Without properly executed expansion compensation, material stress, deformation, or leaks can occur.

Expansion compensation is realized through sliding and fixed points, expansion joints, and special fastening systems. This measure is indispensable, especially for gutters, flashing, parapet covers, or standing seam roofs. In Germany, the requirements for expansion compensation are clearly defined in the technical rules of the roofing and plumbing trades.

Correctly planned expansion compensation ensures durable function, rain resistance, and the longevity of metal components. It prevents damage caused by temperature fluctuations and contributes significantly to the quality and safety of modern roof constructions.

Double Standing Seam

The double standing seam is a high-quality folding technique in the plumbing and roofing trades and is primarily used for metal roofing made of titanium zinc, aluminum, or copper. In this process, two metal sheets are turned up vertically and folded twice together, creating a particularly tight and durable connection. This technique is suitable for low-pitched roofs and sophisticated architecture throughout Germany.

Whether for residential buildings, commercial structures, or renovations: the double standing seam stands for craftsmanship precision, lasting quality, and modern metal roof design.

Structure and technical execution

The professional creation of a double standing seam is carried out in practice in two coordinated phases:

1. The single lock seam (1st phase): The vertically turned-up metal edges of the panels are turned over at a right angle and simply folded. This so-called single lock seam is primarily used for steep walls and facade cladding.

2. The double standing seam (2nd phase): For maximum tightness on the roof surface, the single lock seam is folded downward by another 90°. Only through this double folding is the connection completely closed and given its capillary-breaking properties.

Important for practice: The double standing seam enables a controlled expansion compensation, as the metal sheets are fastened in a sliding manner. Because metals expand and contract with temperature differences, this sliding fastening (e.g., with the MASC fixed-point clip set) is indispensable. This sustainably prevents stress and material damage caused by temperature fluctuations.

The decisive advantages on the construction site

• Very high rain resistance: The system offers excellent rain resistance, even during heavy rain and wind, as no water can overcome the double folded edges.

• Low minimum roof pitch: While classic roof tiles often require steeper pitches, a double standing seam can be made rain-proof from a roof pitch of as low as 3° (with additional measures such as seam sealing tapes) or 7°.

• Timeless aesthetics: In addition to its uncompromising technical function, the double standing seam impresses with its clean, modern look, which fits perfectly into contemporary architecture.

What tools do you need for a double standing seam?

To work efficiently on the roof and deliver error-free results, modern roofing relies on specialized profiling and closing tools. The classic, laborious closing with a seam iron by hand is replaced today for long sections by highly efficient systems.

• For manual and mobile use: When it comes to flexibility and speed directly on-site, tool sets such as the BUSCHMANN TOOLS Seam Bender Set (for precise production of upper and lower seams) or the coordinated WUKO Bender Sets (e.g., 2204|4040) are the absolute benchmark for every plumber.

• For gentle closing of materials: For color-coated metal sheets or sensitive visible surfaces, closing tools with PVC jaws (like the FALZSID angular double seam closer PVC or the FREUND eaves closer with PVC jaws) prevent unsightly scratches and pressure marks.

• For maximum time savings on large surfaces: Those who want to save muscle power in the tough day-to-day work on the construction site turn to semi-automatic or electric seam closers (like the WUKO Sprinter or the BUSCHMANN TOOLS Double Falz Seamer), which close the double standing seam completely in just one single work step.

Roofify Tip: Don't settle for compromises when it comes to your projects. You can find the right professional roofing and sheet metal tools for perfect standing seam projects right here in our shop. Quality. Reliability. Craftsmanship.

Seaming Technique

Seaming technique is a central procedure in the tinsmith and roofing trade and is used for the secure connection of metal sheets on the roof. It involves mechanically folding and seaming sheet edges together to create rainproof, durable, and flexible connections. In Europe, seaming technique is primarily used for metal roofs, standing seam roofing, rain gutters, and flashing.

Depending on the requirements, a distinction is made between single seam, double standing seam, or angle seam. These techniques not only allow for a tight connection but also for controlled expansion compensation during temperature changes. This is particularly important for metals such as titanium zinc, aluminum, or copper.

A professionally executed seaming technique increases the weather resistance, rainproofing, and service life of roof and facade components. It combines traditional craftsmanship with modern technology and is a hallmark of professional metal roofing work.

👉🏻 At Roofify, you can also find the right seaming tools for your seaming technique!

Interlocking Tiles

Interlocking tiles are one of the most popular types of roof tiles in modern German roof construction – especially in NRW. Due to their side and top folds, the tiles interlock exactly and ensure high rain protection, even in strong winds or low roof pitches.

Compared to classic plain tiles, interlocking tiles allow for faster installation and lower material consumption, which makes them particularly economical. They are usually made of clay or concrete and are impressive due to their durability, high frost resistance, and modern appearance.

Interlocking tiles are ideal for roof renovations and new buildings, as they compensate for dimensional tolerances and create a clean roof surface. Thanks to numerous colors, shapes, and finishes, they can be optimally adapted to regional architectural styles. Roofing companies therefore specifically use interlocking tiles for energy-efficient, durable, and visually appealing roofs.

Downspout

A downspout is a central element of roof drainage and ensures that rainwater is safely diverted from the rain gutter to the sewer system or cistern. High-quality downspouts reliably protect facades, masonry, and foundations from moisture damage. In the roofing trade, downspouts made of zinc, copper, aluminum, or plastic are used depending on the requirements. Especially in the European climate with frequent heavy rainfall, a professionally dimensioned and installed downspout solution is crucial.

Modern downspout systems are impressive due to their high durability, corrosion resistance, and visually clean integration into the building envelope. In Germany, downspouts are often combined with leaf traps, inspection openings, or rainwater harvesting systems. For roofers and building owners, the rule is: the correct downspout size, standardized installation, and regular maintenance are essential for permanently functioning roof drainage. This keeps the building protected in the long term – technically efficient and visually appealing.

Moisture Protection

Moisture protection is a decisive factor for the durability of buildings and plays a central role in modern construction and the roofing trade. It reliably protects roof structures, facades, and masonry from penetrating moisture, mold growth, and heat loss. Especially in Europe and specifically in Germany, frequent precipitation and changing weather conditions place high demands on professional moisture protection solutions.

Among other things, vapor barriers, underlay membranes, sealing foils, and bitumen sheets are used, which must be professionally coordinated with one another. Effective moisture protection not only improves the building fabric but also increases energy efficiency and living comfort. For roofers and building owners, the rule is: Only standardized planning and clean execution guarantee permanent protection against moisture damage. Modern moisture protection systems today combine technical safety with sustainable materials – for permanently dry and value-stable buildings.

Ridge Purlin

The ridge purlin is a load-bearing component in a classic roof truss and forms the central support line at the roof ridge. It takes over the load-bearing of the rafters and ensures stability, dimensional accuracy, and safety of the entire roof construction. Especially in timber construction and on pitched roofs, a correctly dimensioned ridge purlin is indispensable. In Germany, high static and building physics requirements apply, which must be strictly observed during planning and execution.

Ridge purlins are generally made of solid structural timber (KVH), glued laminated timber (BSH), or steel and are calculated according to current DIN standards. Professional installation is crucial to avoid settling, cracking, or sagging. For roofers, carpenters, and building owners, it is clear: A high-quality ridge purlin forms the foundation for a durable, safe, and economical roof structure.

Flat Roof

The flat roof is a modern and versatile roof form that is widespread in both residential and commercial construction. Characteristic is the low roof pitch, which makes professional sealing and drainage particularly important. In Europe and specifically in Germany, heavy rainfall, temperature fluctuations, and snow loads place high demands on the flat roof structure.

Proven sealing systems made of bitumen sheets, plastic, or elastomer sheets are used, often combined with thermal insulation and vapor barriers. A professionally executed flat roof offers numerous advantages: it allows for green roofs, photovoltaic systems, or additional usable space. For roofers and building owners, the rule is: Only standardized planning, high-quality materials, and regular maintenance guarantee permanent protection against moisture damage. Modern flat roofs today combine functionality, energy efficiency, and contemporary architecture.

👉🏻 Roofify offers a variety of tools for the right flat roof sealing!

Video: Sealing a flat roof: Installing slope insulation, laying welding sheets, welding the top layer with a burner

Eave Purlin

The eave purlin is a load-bearing component in the roof truss and belongs to the purlin roof in the carpentry trade. It lies at the lower end of the roof construction and performs the task of securely transferring the loads from rafters, roof covering, snow, and wind into the walls or supports below. In Europe, the eave purlin is a central component of modern roof constructions.

The eave purlin is usually made of solid structural timber (KVH) or glued laminated timber (BSH). Precise alignment and professional fastening are crucial for the stability and durability of the roof truss. The eave purlin is often placed on a ring anchor or a sill and connected in a force-fit manner.

Whether new construction, vertical extension, or roof renovation: A correctly planned and installed eave purlin ensures stable load transfer, high safety, and a durable roof construction.

Dormer

A dormer is a roof structure that protrudes from the pitched roof surface and creates additional living space, light, and headroom in the attic. It is an important design element in the roofing and carpentry trade and is frequently used in residential buildings across Europe. Typical dormer shapes are shed dormers, gable dormers, hip dormers, and eyebrow dormers.

In addition to the visual enhancement, a dormer significantly improves the usability of the roof space. Its professional execution requires precise planning of the roof truss, sealing, roof covering, and connections. Especially important are rainproof transitions to the roof surface to prevent moisture damage.

A professionally planned dormer increases living comfort, daylight yield, and property value. It combines functionality with architectural ambition and is a central element of modern roof design.

Green Roof

The green roof is a sustainable roof solution and is becoming increasingly important in the modern German roofing trade. It is a roof that is landscaped with vegetation and can be used on both flat and low-pitched roofs. A distinction is made between extensive and intensive green roofs, depending on the structure, maintenance requirements, and usability.

A professionally executed green roof improves thermal and sound insulation, protects the roof sealing from UV radiation, and significantly extends its service life. Furthermore, it contributes to rainwater retention, improvement of the microclimate, and promotion of biodiversity. The roof structure consists of several layers, including sealing, root protection, drainage, substrate, and vegetation.

Whether new construction or renovation: A green roof increases the energy efficiency, sustainability, and value of a building and is supported in many places by municipal funding programs.

Half-Round Gutter

The half-round gutter is the most frequently used form of rain gutter in the roofing and tinsmith trade. Due to its semi-circular cross-section, it allows for even water runoff and ensures secure roof drainage. It is widespread in single-family homes as well as in multi-family and commercial buildings.

Half-round gutters are made of titanium zinc, copper, aluminum, or plastic and are available in various nominal widths. Crucial for their function are correct dimensioning, numerous slopes, and stable fastening with gutter hangers. Thanks to its shape, the half-round gutter is less susceptible to contamination and is easy to clean.

A professionally installed half-round gutter reliably protects the facade, masonry, and foundation from moisture damage and is a proven, long-lasting system of modern roof drainage.

👉🏻 You can also find gutter bracket bending pliers here in our Roofing Shop

Wood Preservation

Wood preservation is a central factor for the value retention of wooden structures both indoors and outdoors. Whether it's a roof truss, facade, terrace, or carport: Professional wood preservation reliably protects against moisture, UV radiation, fungal infestation, and wood pests. In Europe – especially in weather-intensive regions – professional wood preservation is indispensable to avoid damage and costly renovations.

A distinction is made between structural, chemical, and physical wood preservation. While structural measures such as adequate ventilation and clearance from the ground form the foundation, modern wood preservatives provide additional long-term protection. Environmentally friendly, low-solvent products offer high effectiveness combined with maximum sustainability today.

For roofing and timber construction projects, the following applies: Only professionally protected wood remains permanently stable, secure, and visually appealing – for long-lasting quality and maximum safety.

Collar Beam

Collar beams are a central component in traditional roof truss construction and provide stability and load distribution in a pitched roof. They horizontally connect opposing pairs of rafters and reduce their deflection. Especially with larger roof spans, collar beams are indispensable to permanently ensure the load-bearing capacity and dimensional stability of the roof structure.

In modern timber construction, collar beams are often manufactured from structural solid timber or glulam and are dimensioned precisely according to structural requirements. In Europe, they are a proven element in residential buildings, halls, and renovation projects in the roof area.

Correctly planned and professionally installed collar beams also allow for better utilization of space in the attic and increase the lifespan of the entire roof truss. For roofers and carpenters, the rule is: collar beams represent safety, efficiency, and sustainable construction quality.

Valley

The valley is a particularly critical area in roof construction and occurs where two inclined roof surfaces meet on the inside. As a collection point for rainwater and meltwater, the roof valley must be executed with absolute tightness and professional care to reliably avoid moisture damage. Particularly during heavy precipitation, as is frequent in Europe, the quality of the valley formation plays a decisive role.

In practice, high-quality valley seals, metal valleys made of zinc or aluminum, and precisely cut roof tiles are used. Sufficient overlap and correct water drainage are mandatory here. Especially during renovations, it becomes apparent: Leaky valleys are among the most common causes of roof damage.

Professionally executed valleys increase the lifespan of the entire roof structure, improve drainage, and ensure permanent safety. For roofers, the valley is a true hallmark of craftsmanship precision.

Structural Solid Timber (KVH)

Structural solid timber (KVH) is industrially manufactured, technically dried solid wood and is one of the most important building materials in modern timber construction. It is predominantly made from spruce, fir, or pine and is characterized by its high dimensional accuracy, shape retention, and load-bearing capacity. Due to a defined moisture content of approx. 15%, KVH is particularly resistant to cracking and minimizes the risk of warping.

KVH is primarily used in roof truss construction, timber frame construction, in ceiling and wall structures, and in engineered timber construction. Thanks to finger-jointed connections, large spans can be easily realized. Additionally, structural solid timber is available in visible (KVH Si) and non-visible (KVH NSi) quality.

Another advantage: KVH is manufactured according to strict standards (e.g., DIN EN 15497) and is sustainable and environmentally friendly. For construction projects in the German roofing trade, KVH offers an economical, durable, and structurally safe solution.

Counter-battens

Counter-battens are an essential component of modern pitched roof construction and play a central role in the functionality and longevity of the roof. They are mounted parallel to the roof pitch on the rafters and, together with the roof battens, form the basis for the roof covering. The main task of the counter-battens is to create the rear-ventilation layer, through which moisture is reliably dissipated.

Counter-battens create a defined ventilation cross-section that reduces condensation and significantly increases the lifespan of the roof covering, underlay membrane, and timber components. Additionally, they allow for secure attachment of the roof battens and improve water drainage under the covering.

In the German roofing trade, counter-battens are usually made of impregnated softwood and processed according to DIN standards. When executed professionally, counter-battens contribute significantly to thermal insulation, moisture protection, and lasting roof quality.

Plastic Membrane

A plastic membrane is a modern and high-performance solution for roof waterproofing and is primarily used in flat roof construction, industrial and commercial roofs, as well as on balconies and terraces. Made from high-quality plastics such as PVC, FPO, or TPO, it impresses with high weather resistance, UV stability, and a long lifespan.

Thanks to its low weight, the plastic membrane can be installed quickly and economically. The membranes are mechanically fastened, loose-laid, or fully bonded and welded using hot air, resulting in permanently sealed seams. This ensures maximum protection against moisture and water ingress.

Another advantage is the high flexibility of the plastic membrane, even with strong temperature fluctuations – ideal for the roofing trade across Europe. Furthermore, many systems are root-resistant, recyclable, and comply with current DIN and flat roof guidelines. This makes the plastic membrane a future-proof waterproofing solution for professional roofing projects.

Roof Battens

Roof battens are a fundamental element in pitched roof construction and form the load-bearing substructure for roof tiles, roof stones, or slate. They consist of horizontally laid roof battens that are attached to the counter-battens and safely transfer the loads of the roof covering into the rafters. Proper dimensioning and exact spacing of the battens are crucial for the stability and longevity of the roof.

In the professional roofing trade, standard-compliant roof battens made of dried softwood are used, mostly sorted according to DIN EN 14081. Professionally executed battening ensures secure attachment of the roof covering and provides even load distribution, even under snow and wind loads.

Especially in German roof construction, battening is a central quality factor. Precisely installed, it supports rear ventilation, improves moisture protection, and forms the basis for a permanently functional and energy-efficient roof system.

Airtightness

Airtightness is a central quality feature in modern housing and roof construction and is decisive for energy efficiency, living comfort, and freedom from building defects. An airtight building envelope prevents uncontrolled air currents, heat loss, and the penetration of moisture into the structure. Especially in pitched roofs, during renovations, and in timber construction, professional execution plays a key role.

The materials used include special vapor barriers, airtight membranes, adhesive tapes, and sealants that reliably seal connections and penetrations. Deficient airtightness can lead to condensation, mold, and increased heating costs. The blower-door test serves as a recognized procedure for checking the quality of execution.

In the German roofing trade, airtightness is firmly anchored in standards such as the Building Energy Act (GEG) and DIN 4108. When implemented professionally, it ensures durable structures, sustainable energy savings, and a healthy indoor climate.

Soldering

Soldering is a central joining technique in the roofing trade, especially in plumbing and sheet metal work. During soft and hard soldering, metals such as zinc, copper, or titanium zinc are joined together permanently and water-tightly – ideal for gutters, downpipes, flashings, and connections. Especially on pitched roofs, professionally executed soldering ensures lasting tightness, high resilience, and a clean appearance.

In modern roof construction in Europe, especially in urban areas, precise soldering is indispensable to reliably withstand weather influences such as rain, frost, and heat. The correct soldering temperature, clean surfaces, and the appropriate flux to prevent corrosion are decisive. Professional soldering saves time, reduces maintenance costs, and increases the lifespan of the roof structure. For roofing companies, soldering therefore stands for quality, safety, and craftsmanship at the highest level.

👉🏻 You can also find everything you need for soldering from Sievert here in the roofer shop

Video: SOLDERING A GUTTER

Metal Roof

In the modern roofing trade, a metal roof stands for longevity, low weight, and high weather resistance. Materials such as titanium zinc, aluminum, copper, or steel are ideally suited for residential buildings, commercial structures, and renovation projects. Especially in the German climate, a metal roof offers optimal protection against rain, snow, storms, and UV radiation. Through systems such as standing seam, double standing seam, or trapezoidal profiles, metal roofs can be installed precisely and almost maintenance-free.

In urban areas, metal roofs are in demand as they adapt perfectly to modern architecture while being sustainable at the same time. Metal roofs are 100% recyclable, energy-efficient, and ideal for photovoltaic systems. Thanks to short installation times and high durability, the metal roof convinces both builders and roofing companies alike. It combines technical precision, cost-effectiveness, and contemporary design into a future-proof roofing solution.

Purlin

The purlin is a central component in the classic purlin roof and assumes a load-bearing function in the roof truss. It runs horizontally along the length of the roof and lies between the ridge purlin and the eaves purlin. Its main task is to support the rafters and to distribute the roof loads evenly onto the supporting columns, posts, or load-bearing walls underneath.

Especially in residential construction, industrial construction, and roof renovations in Europe, the purlin is frequently used as it enables larger spans and structurally relieves the roof truss. It is usually made from structural solid timber (KVH), glulam (BSH), or steel, depending on structural calculations and construction requirements.

A professionally dimensioned and installed purlin ensures stability, durability, and efficient load transfer of the entire roof – a decisive factor for every long-lasting and secure roof system.

Nailing Technique

In the roofing trade, nailing technique is a fundamental fastening method for timber and roofing components. It is primarily used for roof trusses, battening, boarding, and timber joints. Decisive for the stability of a roof are the correct type of nail, the correct driving depth, and the appropriate angle. In professional roof construction, galvanized or stainless steel nails are used to avoid corrosion and material fatigue.

Especially in the European climate, nailing technique must withstand high demands regarding wind loads, snow, and moisture. Modern roofing companies rely on pneumatic or battery-powered nailing systems, which allow for precise and time-saving work. A professionally executed nailing technique increases the load-bearing capacity, safety, and lifespan of the entire roof structure. It stands for efficient work, craftsmanship quality, and standard-compliant execution in contemporary roof construction.

Verge

In roofing, the verge refers to the lateral roof edge at the gable ends of a building. It reliably protects the roof structure from wind, driving rain, and moisture, making it a crucial detail for the longevity of the roof. Depending on the roof type, verge tiles, verge flashings made of aluminum or titanium zinc, as well as custom-made sheet metal solutions are used.

In the European climate, especially in regions prone to storms, the verge must be professionally secured and windproof. Precise installation prevents water ingress and prevents damage to insulation and the substructure. Modern verge solutions combine technical functionality with a clean aesthetic and adapt to different roof shapes. For roofing companies, the verge represents craftsmanship precision, safety, and durable weather protection – a small component with a big impact on every roof.

Tools for verge processing

When installing verge flashings or preparing the verge formwork, millimeter-precise cuts and clean edging are essential.

• Safety on pitched roofs: To work safely in the gable area where there is a risk of falling, collective fall protection such as the ABS SAFETY - Mobile Guard Pro for pitched roofs | Verge is indispensable.

• Forming and fastening: When installing formwork, modern devices such as the HiKOKI 18V cordless strip nailer or the PREBENA hybrid nailer bring the necessary pace to the workflows.

• On-site sheet metal edging: For closing the connecting folds between the flashing and the hem strip at the roof edge, the FALZSID Verge Closer Vario is the perfect, time-saving solution.

Verge flashing

A verge flashing is an important closure at the side of the roof edge (verge) and reliably protects the roof structure and facade from wind, driving rain, and suction forces. It is usually made of aluminum, titanium zinc, or galvanized steel and is neatly adapted to roof tiles, roof panels, or trapezoidal sheets. Properly installed, the verge flashing prevents moisture from getting under the roofing and reduces damage to battens, formwork, and underlayment.

For a durable execution, correct overlapping, appropriate edging, expansion compensation, as well as professional fastening with suitable screws/rivets are decisive. In practice, aesthetics also play a role: Powder-coated variants are available in many RAL colors and ensure a modern, clean roof finish.

Patina

Patina is not "dirt" in the roofing trade, but a natural protective layer that forms on metals like copper and titanium zinc. On standing seam and metal roofs, the surface reacts with oxygen, moisture, and air components – a dense oxide or carbonate layer is formed. This patina slows down corrosion, increases service life, and ensures the color change from shiny to matte: Copper first turns brown, then green; zinc develops an elegant gray-blue.

Important for installation: do not sand, do not use acids or strong alkaline cleaners, so that patina formation starts evenly. For repairs and connections, plan for the same materials, separation layers, and clean drainage to avoid contact corrosion and stains. This keeps the roofing tight, gutters and covers work cleanly, and the patina becomes a hallmark of quality. For building owners, this is a noticeable plus in terms of value retention and sustainability.

Purlin

In the roofing trade, a purlin is a load-bearing, horizontal component of the roof structure and takes over the load transfer from rafters and roof surface to walls or supports. A distinction is usually made between ridge purlin, intermediate purlin, and foot purlin: The ridge purlin supports the rafter head at the roof ridge, intermediate purlins carry the load in the middle of the roof, and foot purlins sit in the eave area. Typical materials are structural solid timber (KVH), glulam (BSH), or steel – depending on span, roof pitch, and snow load zone.

For a long-lasting construction, exact supports, secure connections (e.g., purlin anchors, bolts, joist hangers), and proper wood protection are crucial, especially at penetrations and support points. In Europe, carpenters and roofers plan purlins according to statics so that the roof structure remains rigid, deflection is minimized, and the roofing remains permanently tight and crack-free. This creates a stable, economical roof structure for new construction and renovation.

Mono-pitch roof

A mono-pitch roof is a modern roof shape with only one inclined roof surface – clear, efficient, and ideal for new buildings and renovations. Due to the one-sided inclination, rainwater can be directed to the eaves in a controlled manner, which simplifies drainage, gutter routing, and maintenance. In the roofing trade, the mono-pitch roof scores with good space utilization: photovoltaics and solar thermal systems can be mounted in an optimal alignment; furthermore, more usable space often arises inside and light is gained through high wall areas.

Typical structures are rafter roofs or purlin roofs, insulated according to GEG (Building Energy Act), supplemented by airtight layers, sub-roofs, and suitable roofing – e.g., roof tiles, metal, or bitumen. Professional connections to the attic, verge, and penetrations are important to prevent moisture damage. This makes the mono-pitch roof durable, energy-efficient, and visually contemporary. Perfect for carports, extensions, and residential houses.

Rain protection

Rain protection describes the ability of a roof structure to reliably prevent the ingress of rainwater under specified conditions. It is largely determined by the choice of roof covering, the roof pitch, and the professional execution of additional measures (such as under-roofing or rebate sealing tapes in the case of double standing seams). In Germany, the technical rules of the roofing trade govern the minimum requirements for every material.

• Pro tip for metalworkers: For extremely flat standing seam roofs from a 3° pitch, rain protection can only be guaranteed by using permanently plastic sealing tapes in the fold. For fast rolling and closing on site, tools such as the BUSCHMANN TOOLS Falz Bender Set or the WUKO Sprinter are irreplaceable.

Gutter bracket

The gutter bracket (also called a gutter hook) is the load-bearing fastening element of the roof gutter. It ensures stable anchoring to the eave board or rafters and provides the necessary slope for the gutter so that rainwater can flow off in a controlled manner to the downpipe. Gutter brackets must withstand extreme mechanical loads such as snow loads and meltwater.

• Tool benchmark: The error-free alignment and bending of the hooks to the exact angle is one of the core tasks on the construction site. With a professional gutter hook bending tool (e.g., from Freund or Stubai) with a mounted carriage, adjusting the slope succeeds in no time without damaging the material.

Gable roof

The gable roof is the classic and most widespread roof shape throughout Central Europe. It consists of two oppositely inclined roof surfaces that meet at the highest point – the roof ridge. It impresses with its economical construction, excellent rain protection, and optimal suitability for conversion into living space.

• Working safely: Since gable roofs are often steeply pitched, collective accident protection is the top priority. Systems such as the ABS SAFETY - Mobile Guard Pro for pitched roofs reliably protect the team at the verge and the eaves from falls.

Snow load

Snow load is a climatically induced variable impact on structures. It describes the weight of snow on roof surfaces and is a central factor for the static calculation of the roof framework, rafters, and purlins. In Germany, the country is divided into different snow load zones – extreme requirements apply in the Alpine region or low mountain ranges.

• Protection in the eave area: To prevent the uncontrolled sliding of snow masses (roof avalanches), snow guard systems must be installed in accordance with standards. The statically secure fastening of the brackets to the substructure is carried out today in a time-efficient manner using powerful cordless impact drivers or strip nailers.

Screw connection

The screw connection is one of the most important mechanical fastening methods in modern timber and roof construction. Unlike traditional wood joints (such as the tenon), it allows for extremely high force transmissions, can be calculated exactly, and saves massive amounts of time on the construction site. Outdoors, only corrosion-resistant stainless steel screws (V2A/V4A) or specially coated plate-head screws are used.

• Device tip: For fatigue-free sinking of long timber construction screws into glulam (BSH), carpenters rely on high-torque cordless impact drivers with brushless motors that transfer maximum force without kickback to the wrist.

Sill plate

The sill plate (also called a foot sill) forms the lowest, horizontally running wooden component in timber frame construction and classic roof framework construction. It rests directly on the concrete foundation or floor slab and serves as a base for vertical studs or struts. The sill plate must necessarily be protected by a barrier layer against rising construction moisture.

• Precision during framing: Since the sill plate determines the alignment of the entire component, absolute dimensional accuracy is required. For exact notches and mortise-and-tenon joints, carpenters use the sharply ground KIRSCHEN chisel in a leather holster directly on the scribe line.

Slate roofing

Slate roofing is considered the premier class of the roofing trade. Slate is a pure natural product characterized by extreme longevity (often over 100 years), absolute UV resistance, and an unmistakable, noble look. Typical covering types in Germany are the Old German covering, the scale covering, or the modern rectangular covering.

• The master's tool: Slate tiles are still traditionally prepared by hand on the construction site. Working with the slate hammer and the slate stake requires the highest level of craftsmanship precision in order to punch and hew the stones perfectly.

Rafter

Rafters are the load-bearing wooden beams of a roof framework that run from the eaves to the ridge. They form the direct substructure for the counter-battens and the roof covering and pass the acting loads (wind, snow, dead weight) on to the purlins.

• Speed on the roof: When erecting the roof framework, the rafters must be quickly and forcibly connected to the purlins. Where nails were laboriously driven in the past, highly efficient assembly systems such as the HiKOKI 18V cordless strip nailer are used today to fix battens and laths at record speed.

Standing seam

The standing seam roof is a modern, architecturally sophisticated metal roof covering. Thin sheets of metal (trays) are laid next to each other and the upturned edges are locked together. A distinction is mainly made between the double standing seam for roof surfaces and the angular seam for facades. The system is completely screw- and hole-free in the visible area, which guarantees extreme freedom from maintenance.

• Machine power for sheet metal workers: In order to close long trays in a way that saves energy, modern companies rely on semi-automatic closing systems such as the WUKO Sprinter or the BUSCHMANN TOOLS Double Falz Seamer. For detail points in the inlet area, the universal UNIBIEGER is used.

Strut

The strut is an obliquely installed wooden component in the roof framework that serves to stiffen the structure. It absorbs horizontal forces (e.g., due to wind pressure on the gable) and prevents the "tilting" or shifting of the roof framework. Struts mainly work under pressure.

• Tradition meets modernity: In traditional framing, struts are fitted using elaborate wood joints such as the tenon or the shear plate. For the precise reworking of the wooden flanks on the construction site, a robust carpenter's chisel is the tool of choice.

Eaves

The eaves refer to the lower boundary of a roof surface where rainwater is collected and directed into the roof gutter. It is the lowest point of the roof and geometrically particularly demanding, as this is where the ventilation of the roof (inlet air via the eave grid) and the transition to drainage meet.

• Scratch protection in the visible area: Since the flashing of the eaves is fully in the field of view, sheet metal workers use special tools such as the Falzsid eave closer PVC when closing the overlaps. The plastic jaws reliably prevent ugly dings on coated sheet metal.

Substructure

The substructure comprises all components located beneath the actual roof covering that support it. In a pitched roof, it usually consists of rafters, roof underlayment, counter-battens, and roof battens; in a flat roof, it consists of the concrete slab or trapezoidal metal sheets including vapor barrier and insulation. It must be dimensioned to be structurally sound.

• Efficiency in batten installation: Rapid measuring and securing of the roof battens is critical for construction progress. With modern cordless nailers, the substructure can be nailed down in the shortest possible time, ensuring absolute wind stability and compliance with standards.

Roof underlayment

The roof underlayment is a diffusion-open but completely waterproof membrane installed directly beneath the roof covering on top of the rafters. It serves as a "second water-shedding layer" and protects the underlying thermal insulation from drifting snow, driving rain, and condensation, while allowing moisture from the interior to escape to the outside.

• Secure and airtight bonding: To meet the requirements for airtightness, the overlaps of the membranes must be bonded in accordance with the system. Tacking the membranes to the rafters is done in an instant with professional manual or hammer tackers.

Sub-rafter insulation

Sub-rafter insulation is a supplementary thermal insulation layer installed on the room side (i.e., underneath the rafters). It is frequently used during roof renovations to improve the energy performance of the existing between-rafter insulation without needing to strip the entire roof. Additionally, it minimizes the wood rafters as thermal bridges.

• Interior finishing precision: Since this layer lies directly beneath the subsequent plasterboard cladding, the support battens must be aligned perfectly flush. Trimming the wood and insulation materials is done cleanly with specialized insulation knives or cordless miter saws.

Thermal insulation

Thermal roof insulation is the key to high energy efficiency, protection against winter cold, and protection against summer heat. It drastically reduces heating costs and is strictly regulated by the Building Energy Act (GEG). In pitched roofs, a distinction is made between above-rafter insulation, between-rafter insulation, and sub-rafter insulation.

• Professional installation: Whether mineral wool, wood fiber, or rigid PIR foam – insulation materials must be installed without gaps or compression. Clean cuts without fraying can only be achieved with perfectly sharpened cutting tools.

Hip roof

The hip roof is a particularly robust and visually striking roof shape. Unlike the gable roof, it has no vertical gable walls (verges), but inclined roof surfaces on all four sides. The triangular roof surfaces on the gable sides are called hips. This shape offers very little surface area for wind to catch and is ideal for exposed weather conditions.

• Demanding joinery: The construction of a hip roof requires high-precision carpentry preparation due to the meeting hip rafters. Every birdsmouth cut and every compound cut must fit to the millimeter.

Wind uplift protection

Wind uplift protection prevents the roof covering from being torn off during strong storms or hurricane-force gusts. The flow of wind over the roof creates enormous negative pressures (suction forces), especially at the edges (verge and ridge). Protection is achieved by storm-proof clamping of the roof tiles with storm clips or by screwing down metal panels.

• Quick installation according to standards: Calculating and installing storm clips is mandatory in Germany. Modern drive-in clips can be fixed directly to the battens with the appropriate tools or special installation devices without much effort.

Tenon

The tenon is arguably the most well-known and traditional wood joint in carpentry. The end of a wooden beam (the tenon) is tapered so that it fits exactly into a corresponding recess (the mortise) in the counterpart. The joint is classically secured with a wooden dowel.

• Master craftsmanship: Even in the age of CNC joinery centers, manually chiseling out a mortise is part of basic training. A top-class, high-alloy KIRSCHEN chisel ensures mirror-smooth wooden flanks and a perfect fit.

Cleat

In roof framing, a cleat refers to a paired, horizontal wooden component that encloses (grips like a pair of pliers) two opposing rafters. It serves for horizontal bracing and load distribution in collar beam or purlin roofs and is usually connected to the rafters with bolts or dowels to create a force-locking connection.

• Drilling in the assembly: To drive bolt holes perfectly aligned through all three layers of wood (cleat-rafter-cleat), carpenters use powerful, high-torque drills with long auger bits.

Zinc

Zinc (almost exclusively used as high-quality titanium zinc in roofing) is one of the most durable and important materials in the plumbing trade. Over time, due to weather exposure, it forms a matte, gray-blue patina that permanently protects the material from corrosion. It is used for gutters, downspouts, eave flashings, and complete standing-seam roofs.

• The perfect connection: Titanium zinc can be soft-soldered exceptionally well. For absolutely permanent and waterproof gutter joints, professionals rely on highly efficient propane soldering kits (e.g., from Sievert), which guarantee a constant working temperature on the roof even in windy weather.

Carpenter

The carpenter is the professional craftsman for all timber construction on a house. His main task in the roofing area is the erection of the roof structure, the installation of dormers, the joinery of wood structures, as well as the application of wood boarding. The profession combines centuries-old traditions (such as the journeyman years) with state-of-the-art CAD and CNC technology.

• Always on hand: In addition to traditional clothing, the basic equipment for every carpenter on the construction site includes top-class percussion and chiseling tools to rework fits directly on the scaffolding.

Between-rafter insulation

Between-rafter insulation is the most common form of thermal insulation for pitched roofs. The insulation material (usually flexible clamping felts made of mineral wool or natural fibers) is clamped gap-free into the space between the rafters. It is economical and highly efficient, but must be protected on the room side with an airtight vapor barrier.

• Clean cutting: To avoid thermal bridges caused by hollow spaces, the insulation material is cut slightly oversized. A long, double-sided sharpened insulation knife is the most important tool here for a perfect result.

Wood joint

Wood joints include all techniques for connecting individual wooden beams in a roof structure so they are stable and load-bearing. A distinction is made between traditional carpentry joints (such as tenons, lap joints, or birdsmouth joints) and modern, engineering-based connections using steel parts, dowels, and screw connections.

• Precision is key: Every weakening of the timber through a notch must be precisely planned from a structural perspective. Clean chiseling out of wood remnants requires sharp quality tools to prevent cracks from forming in the wood.

Roof tile

The roof tile is the most traditional covering material for pitched roofs and consists of fired clay. It differs fundamentally from the concrete roof tile and is available in countless shapes (such as interlocking tile or beaver tail) and finishes (natural red, engobed, or glazed). Roof tiles are extremely durable, colorfast, and diffusion-open.

• Cutting on the scaffold: At valleys, hips, and the verge, the tiles must be mitered precisely. Roofers use mobile angle grinders with durable diamond cutting discs to achieve clean, splinter-free edges.

Box gutter

The box gutter is a rectangular cross-sectional form of the roof gutter and is used particularly frequently in modern, cubic building architecture or in industrial construction. With the same space requirement, it often offers higher drainage capacity than the half-round gutter, but is somewhat more demanding in terms of construction during cleaning and folding.

• High-level plumbing work: Folding the end pieces (gutter ends) for box gutters requires exact marking and precise bending. With coordinated plumbing tools and closing plates, the box gutter is brought into perfect shape before soldering.
  
  

Edging / Bending

Edging (also called bending or folding) refers to the plastic deformation of sheet metal strips or cutouts into a defined angle. It is the fundamental procedure in the plumbing trade for creating precisely fitting connections, flashings, metal panels, or covers. Since modern metal roofs often need to be adapted directly on the construction site, mobile edging has established itself as an extremely time-efficient method.

• The benchmark on the construction site: Instead of walking to the stationary workshop machine for every bend, professionals use portable roll-forming devices (so-called benders). The manual roll benders from WUKO (e.g., the Uni Bender 2204 or 6200) as well as the DRÄCO Eco-Bender allow for precise bending from 90° up to 100° directly at the chalk line – gentle on the material and without pressure marks.

Asbestos removal

Asbestos removal is one of the most strictly regulated tasks in the renovation of old buildings. Because asbestos fibers are highly hazardous to health and carcinogenic, extremely strict occupational safety guidelines (TRGS 519) apply in Germany. Every instance of loosening, transporting, and packaging asbestos-containing materials (such as old corrugated sheets or slate roofing) requires certified protective equipment and clearly labeled disposal containers.

• Complying with safety and regulations: Full PPE equipment is mandatory for professional remediation. This includes particle-filtering respirator masks of class FFP3 (like the 3M Aura 9332+), antistatic disposable coveralls (Cat. III Type 5/6), as well as fiber-tight asbestos big bags or container bags with legally required warning imprints. Residual fibers on the construction site must also be fixed using a special residual fiber binder.

Closing the seam

Closing a seam describes the final mechanical operation in which two nested metal profiles (e.g., top and bottom fold for a double standing seam) are pressed together to be force-locking and rainproof. Only through complete compression of the seam flanks does the covering become absolutely storm-proof and watertight. The process requires absolute uniformity to avoid tensions in the metal roof.

• From hand tools to machines: For short sections, connections, or corners, plumbers use manual seam closers, angled seam irons, or crimping pliers (e.g., from Stubai or Masc). However, anyone needing to close long metal panels on large roofs in record time saves massive amounts of muscle power and valuable working time on the construction site with motorized systems like the WUKO Sprinter or the BUSCHMANN TOOLS Double Falz Seamer.

Protective jaws / Plastic jaws

Protective jaws (usually made of high-strength PVC or special plastic) are replaceable inserts for seam pliers, angle folders, or eave closers. They are used wherever color-coated metal, painted visible surfaces, or highly sensitive metals are processed. Since conventional steel jaws can scratch the coating, plastic jaws form the protective barrier between tool and material.

• Scratch-free installation: An unprotected tool destroys the zinc or paint layer, which inevitably leads to subsequent corrosion. Tools with integrated PVC jaws (like the Falzsid eave closer PVC or the FALZSID angle double seamer) guarantee flawless results in visible areas at the eaves, verge, or parapet. For existing Buschmann or Stubai tools, there are also matching replaceable plastic inserts for retrofitting.

Beading / Beading machine

Beading refers to the rolling of channel- or line-shaped indentations (beads) into sheet metal pipes or metal plates. In roofing and plumbing, beading primarily serves two purposes: massively increasing the rigidity of thin metal sheets (stiffening bead) and creating precise plug-in and socket connections for rainwater downpipes.

• Flexibility during installation: While beading machines used to be stationary workshop tools weighing tons, the modern plumber works on a mobile basis. With cordless beading machines like the BUSCHMANN TOOLS AccuBeader, beads for pipes and sheets can be rolled directly on the construction site using a cordless drill drive – this saves a trip to the workshop and enormously speeds up on-site adjustments.
  

 

Asbestos corrugated sheets

Asbestos corrugated sheets (often known as "Eternit sheets") were installed by the ton on roofs throughout Germany until the 1990s due to their enormous weather resistance and fireproof qualities. During roof renovation of existing structures, they today represent one of the greatest challenges, as microscopic, carcinogenic asbestos fibers are released if the sheets break. Removal is subject to the strictest legal requirements (TRGS 519).

• Compliant disposal: When dismantling asbestos corrugated sheets, dust-tight packaging is the most important step in occupational safety. For this purpose, specially sized large containers such as the Big Bags 320 x 125 x 30 cm – Asbestos are used, which are precisely tailored to the dimensions of corrugated sheets, coated, and UV-stabilized. To mark hazardous areas and containers, companies use Eskorte barrier tape "Asbestos fibers" and corresponding warning labels.

Sheet metal cutter / Rotary shear

A sheet metal cutter (often also called a roller shear or mobile rotary cutter) is a mobile plumbing tool for the rapid, chipless cutting of metal sheets. Unlike classic hand-guided tin snips, the sheet metal cutter runs on rollers or a guide rail over the sheet. This allows for extremely long longitudinal and cross cuts to be made absolutely straight and without any material distortion, whether directly from the coil or on prefabricated panels.

• High-speed cutting on the roof: When panels need to be shortened or eaves flashing needs to be cut, mobile systems save massive amounts of time. Leading devices such as the WUKO Cutter 1070 or the lever-operated WUKO Clipper 1022 C2A cut titanium zinc, copper, and aluminum without distortion and without sharp burrs. For maximum automation, the BUSCHMANN TOOLS Roll Cutter with laser serves as an innovative attachment for cordless drills.

Automatic bitumen welding machine / Automatic roof welding machine

An automatic bitumen welding machine (or automatic roof welding machine) is a high-performance construction site machine used for fully automatic welding of membranes on flat and low-slope roofs. The machine traverses the welds at a constantly controllable speed, temperature, and airflow rate. This eliminates human error during the welding process and ensures uncompromising, documentable seam quality on large industrial and commercial surfaces.

• The flameless future: While there is always a fire risk when welding with a traditional gas torch, modern automatic machines work completely flamelessly using hot air. The absolute top class in the flat roof segment includes devices such as the LEISTER VARIMAT 500 or the compact LEISTER UNIROOF 700, which features integrated digital quality control for seamless documentation of welding parameters. For bituminous top layers, the LEISTER BITUMAT B2 is the safest and fastest option on the market.

Metal coils / Small coils

Metal coils (or strip metal) are rolled-up metal strips made of titanium zinc, copper, aluminum, or stainless steel that serve as raw material in the plumbing trade. They are fed into profiling or cutting machines in workshops or directly on the construction site to produce individual roof panels, verge flashing, or eaves flashing in exactly the required length. Working from the coil drastically minimizes material waste compared to fixed sheet metal panels.

• Controlled handling without material stress: Since large coils can weigh several tons and even small coils can weigh up to 200 kg, handling in the warehouse and on the construction site is a safety factor. Mobile transport and uncoiling devices such as the MASC Unicoiler or the MASC Kuli & Material roll holder with guide rollers guarantee absolutely controlled, twist-free uncoiling of the metal without causing deformations or dangerous snapping back of the strip end.

Leak test / Vacuum test

The leak test is the final quality assurance step during the acceptance of flat roof and building waterproofing. Since even the smallest hairline cracks in the seams of plastic membranes can lead to devastating water damage in the roof structure, critical seam areas and detail connections must be precisely inspected. In addition to manual inspection with a seam tester, the vacuum test is considered the safest method.

• Making leaks visible immediately: During the vacuum test, a transparent test bell is pressed onto the weld seam, which has been wetted with soapy water, using a vacuum pump. If there is a leak, visible air bubbles form immediately under the bell. High-end testing systems like the LEISTER VACUUM BOX in combination with the LEISTER VACUUM PUMP allow for fast, non-destructive, and absolutely reliable leak checks directly on-site at the construction site.

Throatless shears / Pelican shears

Throatless shears (often referred to in jargon as pelican shears due to their characteristic head shape) are specialized hand-held sheet metal shears for long, straight cuts in the plumbing trade. Their decisive design advantage lies in the fact that the tool head is angled in such a way that the cut sheet is guided past the hand during the cutting process. As a result, the hand does not move into the sharp cutting edge, and the sheet does not bend up.

• Clean material flow: Anyone who needs to manually cut sheet metal panels to length or trim panels needs shears with high durability. The STUBAI throatless shears 350 mm (PVC-insulated) or the MASC | Stubai pelican shears, right are forged from high-strength tool steel, guarantee extremely clean cutting edges, and noticeably reduce the physical effort required – ideal for long cuts in facade cladding.

Forming / Shaping

Forming (often referred to as shaping in the plumbing sector) describes the plastic stretching or shrinking of sheet metal edges to produce curved, wavy, or circular sheet metal profiles. This technique is always required when sophisticated architectural details such as round dormers, curved roof edges, turret coverings, or radii need to be clad in metal. Without special tools, bending curves inevitably leads to the formation of waves and material distortion.

• Perfect radii without wrinkles: To force metal sheets neatly into a curve, craftsmen use specialized tools like the MASC eaves wedge for shaping or the MASC wedge and radius hammer. If prefabricated standing seam profiles need to be closed on round dormers, professionals use the MASC round dormer closer or the FREUND round dormer closer short to adapt the angle seam evenly and extremely gently to the radius.

Gas torch / Welding torch

The gas torch (primarily referred to in flat roof construction as a welding torch) is the traditional standard tool for laying and welding bitumen membranes. Operated with liquid propane gas, the torch produces a highly efficient, extremely hot flame that melts the bituminous surface layer of the membranes, allowing them to bond permanently and waterproofly with the substrate. Working with an open flame requires extreme caution and equipment that meets standards.

• Performance and weight reduction: Since roofers often weld large areas for hours at a time, the weight of the tool determines fatigue and back pain. High-end titanium torches like the SIEVERT PRO 88 Titanium welding torch set drastically reduce weight compared to steel torches while still delivering uncompromising heating performance of up to 114 kW. For detail areas and seams, professionals use special edge-welding torches to guarantee pinpoint, safe work.

Pry bar / Crowbar

The pry bar (universally referred to in craftsman slang as a crowbar) is the most important tool for renovation, dismantling, and refurbishment work in the roofing trade. Leverage allows enormous forces to be generated to pry up old sheathing, pull stubborn nails out of the roof truss, or detach damaged components without damaging the material.

• The smart demolition routine: Classic demolition with a sledgehammer costs infinite energy and often damages healthy wood structures. With specialized leverage tools like the FREUND BOZZ demolition tool or the MASC - HAVE Universal pry bar set, demolition can be handled in a controlled manner while moving forward. This conserves the team's strength and massively accelerates construction site progress during roof renovation.

Gutter seam / Gutter connection

The gutter seam refers to the connection point between two individual segments of a roof gutter or at the gutter corners. Because roof gutters are subject to extreme changes in length due to temperature fluctuations, the gutter seam is one of the most critical zones in roof drainage. Traditionally, these joints are connected by soft soldering (e.g., using Sievert soldering kits). In modern workflows or in difficult weather conditions, however, solder-free, mechanical connection systems are increasingly being used.

• The solder-free alternative in wind and cold: When strong wind, extreme cold, or wet weather make soldering on the roof impossible, the MASC Gutter Seam Set (RNS) in combination with the MASC Gutter Seam Clamp (RNZ33/RNZ28) offers the perfect solution. With the help of the permanently plastic, self-welding Nanofil seam insert and high-strength stainless steel sealing rivets, an absolutely watertight, flexible, and extremely durable gutter connection is created directly on-site – without any open flame.

Ornamental hammer

The ornamental hammer (often also designed as a slate or plumber's honorary hammer) is a highly refined, handcrafted traditional tool in the trade. It is forged according to centuries-old tradition from high-quality special steel and then elaborately galvanized – typically in 24-karat genuine gold, chrome, or vintage antique copper finishes. In the trade, it serves as a symbol of pride, tradition, and excellent performance.

• The perfect gift for craftsmen: The ornamental hammer is a purely commemorative and display piece for the workshop or office. In the roofing and carpentry trade, it is considered the absolute standard gift for passing the journeyman or master craftsman examination, for company anniversaries, for moving into one's own home, or for retirement. At Roofify, the hammer can optionally be personalized with an individual engraving and ordered in a classy wooden presentation box.

Eaves flashing / Gutter flashing

The eaves flashing (often also called gutter flashing) forms the professional transition from the roof surface to the roof gutter. It ensures that draining rainwater or melting snow is reliably guided into the gutter and does not get behind the gutter into the substructure or the masonry. It also mechanically fixes the lower edge of the underlay membrane.

• Precision folding at the eaves: Eaves flashing must be precisely matched to the slope of the roof and the gutter distance. To work the sheets directly on-site on the scaffolding without distortion or scratches, plumbers use mobile roll-folding machines like the WUKO Uni Bender 2204 or cut the blanks distortion-free directly from the coil with the WUKO Cutter 1070.

Ridge / Roof ridge

The ridge is the top, usually horizontal intersection line of two oppositely sloped roof surfaces (e.g., on a gable roof). It forms the design and functional crown point of the roof. Its main task is to seal the top end so it is absolutely rainproof, while at the same time humid air is controlled and vented from the rear ventilation layer through special ventilation elements (ridge roll/dry ridge).

• Storm-proof ridge tile installation: Ridge tiles lie in the zone with the highest wind uplift security requirements. For the fast and compliant screwing of ridge clips onto the ridge purlin, roofers use highly efficient fastening technology like the NEW HIKOKI 18V cordless drill/driver to guarantee maximum pull-out distances in the wood.

Hip panels / Hip flashing

The hip is the outer, inclined intersection line that occurs when two roof surfaces meet – typical for a hipped roof. In plumbing technology, this line is covered on metal roofs with a custom-made hip panel or hip flashing. Since water runs off to both sides here, the seam connection must be executed absolutely without distortion to absorb thermal stresses.

• Perfectly sealed transitions: Manually adjusting the panels to the angled ridge line requires masterful skill. To seal the angle seams in the visible ridge area without scratching, professionals use specialized tinsmithing tools like the FALZSID double-angle seam closer PVC, whose protective jaws shield coated metals from damage.

Back ventilation / ventilation layer

Back ventilation is the energetic heart of the modern, ventilated roof structure (cold roof). Installing the counter-battens creates a defined cavity between the roof underlay and the roof covering. Thermals cause cold air to enter at the eaves, absorb moisture that has diffused from the interior, and carry it away at the ridge. This effectively prevents mold growth and provides heat protection in summer.

• Exact alignment of the battens: To ensure the airflow can circulate unimpeded, the battens must be installed perfectly in alignment. Carpenters use precision measuring technology such as the STABILA TECH 196 DL electronic spirit level to detect and compensate for unevenness in the wood before fixing the counter-battens with the PREBENA hammer tacker Kraftpaket.

Cover strip / wall connection clamping strip

A cover strip is a mechanical metal flashing profile used for the permanent fixation and sealing of connection flashings on rising building components (e.g., masonry, chimneys, or dormer walls). It presses the sheet metal or sealing membrane against the wall and prevents water running down from above from getting behind the construction. The top edge is additionally sealed with an elastic sealant joint.

• Rapid installation in hard substrates: Installing a cover strip requires numerous drill holes in concrete or clinker. To work efficiently in the often tight area behind a dormer, tradespeople rely on compact, extremely powerful machines like the HIKOKI 36V cordless drill/driver DS36DC, which effortlessly generates the pressure needed for anchor installation.

Leaf guard / gutter strainer

A leaf guard is a functional protective element placed into the roof gutter or mounted directly over the outlet of the downpipe (as a gutter strainer). It prevents leaves, twigs, or moss from being flushed into the downpipe and causing blockages. During heavy rain, clogged drainage systems inevitably lead to water backup, which can flood the roof or damage the façade.

• Maintenance and installation under control: Since leaf guard systems require regular cleaning, simple mechanical installation is a must. For the precise cutting of gutter openings and fitting of accessories, tinsmiths use hand-held shears like the forged MASC | Stubai pelican snips to achieve clean, burr-free edges.

Mansard roof

The mansard roof is a Baroque, architecturally demanding roof form where the lower roof surfaces are steeply angled and the upper surfaces taper off more flatly. This creates almost the full space gain of a standard floor in the attic without obstructive roof slopes. The "kink" line between the two roof pitches (the mansard hip) places high structural demands on rain protection and moisture protection.

• Complex joinery in the hip area: The carpentry construction of the roof truss requires millimeter-precise connections of the rafters to the purlins at the mansard hip. For the precise finishing of wooden connections on the scaffolding, carpenters use the sharp-forged elite: The KIRSCHEN carpenter's chisel set with leather pouch guarantees clean flanks for maximum frictional connection.

Emergency drainage / scupper

Emergency drainage is a legally mandated safety feature for flat roofs with internal drainage. Should the main drains fail (e.g., due to a once-in-a-century heavy rain or blockage), the emergency drainage—usually designed as an attic scupper (pipe penetration through the parapet)—directs the water unthrottled onto a freely floodable courtyard area. It prevents the structural failure of the roof due to overload.

• Precise seam inspection at the drains: The connections of synthetic membranes or bitumen sheets to the emergency drains are critical points. For 100% non-destructive testing of the weld seams around the scupper, flat roof professionals use the LEISTER VACUUM BOX in combination with the LEISTER VACUUM PUMP to make leaks immediately visible via negative pressure.

Gutter angle

The gutter angle is a prefabricated or hand-crafted component of the roof drainage system that allows the roof gutter to change direction around corners (outer or inner corners). Since extreme turbulence and large volumes of water meet at building corners, the gutter seam at the angle must be made absolutely stable and permanently watertight.

• The perfect corner without heat: When soldering is impossible due to strong wind or sensitive surfaces, tinsmiths use the innovative MASC Gutter Seam Set (RNS). In combination with the MASC Gutter Seam Clamp and the self-welding Nanofil insert, the gutter angle is riveted to the gutter cold, extremely quickly, and absolutely permanently sealed.

Panels / sheet metal panels

"Panels" (or sheet metal panels) refer to the individual long metal strips that form the actual roof skin of a metal roof (e.g., in a double standing seam system). The panels are generally cut from small coils to the exact length of the roof using a profiling machine and their long sides are folded up to be seamed together later.

• Gaining meters at high speed: Manually closing panels on large industrial areas is extremely energy-intensive. Modern tinsmithing companies therefore rely on semi-automatic or electric seam closers like the WUKO Sprinter or the BUSCHMANN TOOLS Double Falz Seamer, which move autonomously along the panel and close the seam in a single operation.

Eave flashing / gutter entry flashing

(Note: Often used synonymously with drip edge, but focused here on the mechanical protection of the eave timber.) The eave flashing protects the structural wood of the eaves (the fascia board) from spray water and moisture that can be forced under the first row of tiles by wind. It directs water from the roof underlay directly into the roof gutter, so the wooden construction remains permanently dry.

• Chip-free cutting directly on site: Since eave flashings must be individually adapted to the gutter brackets, quick cuts are necessary. With the mobile roller cutter WUKO Clipper 1022 C2A or the WUKO Cutter 1070, tradespeople cut the metal straight at the installation site, without burrs and without distorting the sheet metal edges.

Canopy

A canopy is a small, cantilevered or supported roof construction over building entrances, retail areas, or loading docks. It serves both architectural purposes and the practical protection of people and doors from rain and snow. In craftsmanship, canopies are often executed as miniature versions of large roofs – including a mini roof gutter, downpipe, and joinery.

• Compact power in timber construction: Because canopies are usually anchored directly to existing façades, the wooden connections must be extremely lightweight and precisely fitted. To quickly set high-strength screw connections in the support structure, carpenters use high-torque cordless impact drivers from HiKOKI to work in the wood without fatigue or splintering.
  

Folding machine / segment folding machine

A folding machine is a mechanical or hydraulic tinsmithing tool used for bending and shaping large sheets of metal. Segmented folding machines are increasingly used in modern tinsmith workshops and directly on the construction site. Thanks to individually removable segments (goat's foot segments) on the clamping beam, sheets can be folded on all four sides to produce complex shapes such as cassettes, boxes, or custom roof edge profiles.

• Mobile profiling on site: To save long travel times between the construction site and the workshop, modern trades rely on transportable solutions. Construction-site-ready machines like the DRÄCO Segment Folding Machine K1-AGNU-4 can be set up flexibly and used directly on site. The perfect accessory is the DRÄCO Roller Cutter 1000 mm with linear guide, with which sheets can be cut precisely and without chips directly at the folding bench.

Marking template / scriber

The marking template (often referred to in technical jargon as a "scribing spruce") is an indispensable measuring and marking tool in the roofing and tinsmith trade. It is used for quick, precise, and repeatable marking of standard dimensions (e.g., seam heights, overlaps, or hole distances) directly on sheet metal or wood. Without such a tool, tradespeople would have to laboriously measure every millimeter with a ruler, which drastically increases the error rate.

• Serial precision on the roof: When marking uniform distances for fasteners or seam terminations, tools like the MASC Marking Template Big (5–200 mm) or the flexible MASC marking template are an absolute routine aid. For curved lines and radii, tinsmiths use the FREUND curved marking template to apply markings flawlessly at a glance.

FFP3 respiratory mask

The FFP3 respirator is a particle-filtering half-mask and represents the highest protection level among disposable fine dust masks. In roofing supplies, it is the legally prescribed PPE (Personal Protective Equipment) for extremely health-hazardous work. It filters at least 99% of airborne particles and reliably protects the team from carcinogenic substances such as respirable asbestos dust, quartz dust (when cutting roof tiles), or old mineral fiber insulation materials.

• Safety during asbestos disposal: When deconstructing hazardous materials on the roof, there can be no compromise. Masks with an integrated exhalation valve such as the 3M Aura 9332+BV FFP3 respirator drastically reduce breathing resistance and heat buildup under the mask. This is a noticeable comfort and safety factor, especially during hard, dust-intensive renovation work in combination with the Coverstar 500 disposable overall.

Metal nibbler

A metal nibbler is a chip-free cutting tool for sheet metal processing. Unlike classic sheet metal shears, the nibbler separates the material through a continuous punching movement (the up-and-down movement of a punch). This allows sheet metal to be cut absolutely without distortion and without any deformation of the edges—ideal for clean cutouts, notches, or tight curved cuts directly in the panel.

• Two functions in one hand: To minimize tool changes during the daily grind on the construction site, tinsmiths use smart combination tools. The MASC Metal Nibbler BK1/II (also available in a set with an edge marker) combines high-precision cuts with the ability to mark sheet metal edges cleanly without damaging the material or colored coatings.

Rotary hammer / cordless drill-driver

The rotary hammer and the cordless drill-driver are the universal electric powerhouses on every construction site. While the drill-driver is used in timber construction for fast, high-torque screw connections (e.g., for purlins or formwork), the rotary hammer with its pneumatic impact mechanism is used for hard substrates like concrete ring beams or clinker masonry.

• Uncompromising power for hard daily use: On the roof, battery life determines construction progress. Carpenters and roofers rely on high-performance brushless devices like the HIKOKI Cordless Drill-Driver DS36DCW2Z (36V). Paired with the HIKOKI Multi Volt Battery Starter Set, the machine provides the power necessary to drive even thick auger bits or hole saws through wood in hard, continuous use without a drop in speed.

Coil carriage

A coil carriage (also called a mobile decoiler station) is a heavy-duty transport system used in the tinsmith workshop and directly on the construction site for the safe handling of metal coils. Since metal roof panels are often needed in extreme lengths, the large or small coils are stored on the ball-bearing rollers of the coil carriage. This allows for absolutely twist-free, controlled, and surface-friendly uncoiling of the strip material directly into the profiling or cutting machine.

• The mobile cutting station: To not only uncoil material but to cut it to length accurately on the spot, professionals use multifunctional systems. High-end solutions like the DRÄCO mobile coil carriage of the K1-CW series (available with integrated cross-cutting or slitting units) allow for millimeter-precise cutting directly from the coil – without having to transport heavy additional plate shears to the construction site.

Bevel gauge / carpenter's square

The bevel gauge (or T-bevel) is a traditional adjustable measuring tool used in carpentry and timber construction. It consists of a stock and an adjustable blade that can be locked at any angle using a thumbscrew. It is used to capture existing angles (e.g., the roof pitch during renovation of old buildings or the slant of rafters and struts) directly from the structure and transfer them accurately to new construction timber.

• Analog tradition meets digital precision: For classical manual joinery, the Freund 300 mm bevel gauge is the absolute standard tool for quick marking on the construction site. However, when it comes to digital documentation in modern structural timber engineering, craftsmen combine this routine with tools like the STABILA TECH 700 DA electronic protractor, which combines a protractor, spirit level, and bevel gauge in a single high-end instrument.

Downpipe hole saw

The downpipe hole saw (often designed as a bi-metal hole saw) is a specialized drilling tool for plumbers. It is needed to cut circular, clean openings in gutters when a new outlet nozzle for the downpipe is to be installed. Compared to classic tin snips, cutting with a hole saw prevents the gutter bottom from warping or tearing and guarantees a perfectly flow-optimized opening.

• Wear-resistant for titanium zinc and copper: Anyone who regularly installs roof drainage systems needs a durable set. The MASC downpipe hole saw set (60–120 mm) made of high-strength HSS bi-metal offers exactly the common diameters for all downpipe sizes and ensures absolutely circular, burr-free cuts in seconds.

Heat gun / manual welding tool

The heat gun (usually referred to as a manual welding tool in roofing supplies) is the essential tool for welding plastic membranes (PVC, TPO, FPO) on flat roofs, as well as for detail work on connections, dormers, and parapets. Using precisely regulated hot air, the overlap area of the roofing membranes is plastically melted and then joined homogeneously with a pressure roller. The process is completely flameless and offers maximum protection against fire hazards.

• Digital temperature control: Since plastic membranes require an extremely narrow temperature window for welding depending on weather and material, precise control is mandatory. Industry standards like the digital LEISTER TRIAC AT allow parameters to be set via display and offer an intelligent ECO mode. The innovative LEISTER NEXHEAT 300 A-LP (18V) cordless heat gun provides maximum wireless freedom on scaffolding.

Slotting pliers

Slotting pliers are specialized punching pliers used in plumbing and facade construction. Their main task is to punch elongated holes (slots) in metal panels, hem strips, or facade panels. These slots are crucial in metal construction because they provide mechanical support for screws or rivets while allowing the metal enough room to expand horizontally during temperature fluctuations (controlled thermal expansion).

• Punching instead of drilling: Retroactively enlarging holes with a drill costs a lot of time and creates dangerous metal shavings that can damage the patina. With the robust FREUND slotting pliers, craftsmen punch the exact slots in a single, clean work step – material-friendly, fast, and absolutely precise.

Ladder anchor

A ladder anchor is a mechanical safety device used for workplace safety on construction sites. It is used to securely anchor portable leaning ladders to the structure at the top (e.g., at the eaves or the parapet). Since slipping or sideways tipping of ladders is one of the most common causes of accidents in the roofing trade, standard-compliant anchoring during recurring inspections is a key factor in occupational safety.

• Safe roof access: A smart and universally applicable solution is the MASC ladder anchor. It can be quickly fixed to almost any gutter without tools and ensures that the ladder remains rock-solid while the team transports material onto the roof or installs PPE systems like the ABS SAFETY roof access kit for safe climbing.

Pipe expander set

The pipe expander set is a coordinated collection of various expansion tools for roof drainage. It bundles the most common diameters to expand rain downpipes of different sizes precisely and create perfect-fit socket connections. Such a set belongs in the basic equipment of every plumber's vehicle, as it guarantees maximum flexibility during renovations and adjustments in existing buildings.

• The all-in-one pipe expander: Instead of carrying many individual tool heads, modern companies rely on ingenious combination solutions. The FREUND 6D pipe expander covers six common downpipe diameters as an all-in-one device. Those who prefer the complete system in a protective transport case opt for the FREUND pipe expander set (Ø 76 to 120 mm) for uncomplicated operation with the SDS shank of a hammer drill.

Seaming iron / folding iron

The seaming iron (often referred to as a folding iron or prism seaming iron) is the classic, forged hand tool of the plumber for manual straightening and forming work on sheet metal. It serves as a stable counter-form (anvil) when folding metal edges, aligning irregular seams, or neatly incorporating connections into tight gutters and cornices.

• Precise guidance in seaming technology: For demanding detail work on metal roofs, craftsmen use high-quality forged forms. The FREUND seaming iron with prism (25x25mm) or the compact FREUND seaming iron with prism (20x20mm) offer perfect guidance and repeatability during manual edge folding due to their geometry – an absolute must-have for every plumber in the traditional shaping of metal profiles.

Slate-cutting anvil

The slate-cutting anvil is the fundamental base and counter-form for manually hewing and working slate tiles. It is driven directly into the wooden roof framework or a wooden sawhorse. The roofer places the slate on the sharpened edge of the anvil and strikes the material from above with the slater's hammer to break the stone precisely and cleanly into the desired shape (e.g., scale or rectangle).

• Straight or curved for every corner: Different designs are used depending on the type of roofing and detail point. For classic, straight cuts, the STUBAI straight slate-cutting anvil is the proven standard tool. For tricky valleys, ornaments, or hidden valley areas, however, roofers use the STUBAI curved slate-cutting anvil (325 mm) to work precisely even in difficult angles.

Beading machine / cordless beading machine

A beading machine is a profiling machine that guides sheet metal or pipes between two rotating rollers (beading rollers) to press linear indentations (beads) into the material. This serves to massively increase the structural rigidity of thin sheet metal or to produce precise sockets for roof drainage components. While these machines used to be stationary and weigh tons, the modern plumber works completely mobile today.

• Workshop precision directly on the construction site: To adapt pipe segments or metal panels directly at the installation site, companies use innovative battery-powered systems. The BUSCHMANN TOOLS ACCUBEADER is a mobile beading machine that is simply driven by a standard cordless drill. This allows reinforcing and connecting beads to be rolled in at lightning speed, with high precision, and without great physical effort directly on the roof.

Ice bead An additional reinforcement of the gutter bead (the front gutter edge) using an inserted round iron rod. This makes the gutter extremely stable against heavy snow pressure and ice loads in winter.

Bevel gauge An adjustable tool for transferring irregular angles to sheet metal. Indispensable when dormers, chimneys, or inclined wall connections need to be fitted.

Through-cut shears / Pelican shears Through-cut shears (often referred to in jargon as pelican shears due to their characteristic head shape) are specialized hand tin snips for long, straight cuts in the plumbing trade. Their decisive design advantage lies in the fact that the tool head is angled so that the cut metal is guided past the hand during the cutting process. As a result, the hand does not move into the sharp cutting edge, and the metal does not bend.

• Sample link: The STUBAI 350 mm through-cut shears or the MASC | Stubai pelican shears (right) guarantee extremely clean cutting edges and noticeably reduce the required effort.

Hip shears / hip flashing The hip is the external, inclined cutting line that occurs where two roof surfaces meet – typical for a hipped roof. In plumbing, this line is covered on metal roofs with custom-made hip shears or hip flashing. Since water flows off to both sides here, the seam connection must be executed absolutely without distortion to absorb thermal stress.

Seaming iron / folding iron The seaming iron (often referred to as a folding iron or prism seaming iron) is the classic, forged hand tool of the plumber for manual straightening and forming work on sheet metal. It serves as a stable counter-form (anvil) when folding metal edges, aligning irregular seams, or neatly incorporating connections into tight gutters and cornices.

• Sample link: The FREUND seaming iron with prism (25x25mm) offers perfect guidance and repeatability during manual edge folding due to its geometry.

Additions for timber construction / carpentry

Wood preservation Wood preservation is a central factor for maintaining the value of timber structures indoors and outdoors. Whether it's a roof truss, facade, terrace, or carport: Professional wood preservation reliably protects against moisture, UV radiation, fungal infestation, and wood-destroying insects. A distinction is made between constructive, chemical, and physical wood preservation.

Nailing technology Nailing technology is a fundamental fastening method in the roofing trade for wooden and roof components. It is primarily used for roof trusses, lathing, boarding, and wood connections. The right type of nail, the correct driving depth, and the appropriate angle are decisive for the stability of a roof.

• Sample link: Modern roofing companies rely on pneumatic or battery-powered nailing systems like the HiKOKI 18V cordless strip nailer or the PREBENA hybrid nailer, which allow for precise and time-saving work.

Screw connection The screw connection is one of the most important mechanical fastening methods in modern timber and roof construction. In contrast to traditional wood joints (such as mortise and tenon), it allows for extremely high force transmission, can be calculated exactly, and saves a massive amount of time on the construction site. For outdoor use, only corrosion-resistant stainless steel screws or specially coated plate-head screws are used.

Bevel gauge / carpenter's square The bevel gauge (or T-bevel) is a traditional adjustable measuring tool used in carpentry and timber construction. It consists of a stock and an adjustable blade that can be locked at any angle using a thumbscrew. It is used to capture existing angles (e.g., the roof pitch during renovation of old buildings) directly from the structure and transfer them accurately to new construction timber.

• Sample link: For classical manual joinery, the Freund 300 mm bevel gauge is the absolute standard tool for quick marking on the construction site.

Carpenter The carpenter is the professional craftsman for all timber construction on a house. Their main task in the roofing area is the erection of the roof truss, the installation of dormers, the framing of timber structures, and the application of wooden formwork. The profession combines centuries-old traditions with state-of-the-art CAD and CNC technology.