Load-Bearing Structures for Construction
Load-Bearing Structures
Weckman manufactures safe, CE-marked profiled sheets and steel purlins for building frames and roofs.
Load-bearing profiled sheets W-70/900, W-115/750, W-130/950, and W-155/840 can be used as load-bearing structures in upper and intermediate floors, roofs, and walls. Load-bearing capacities up to 9 m spans. Due to their high load-bearing capacity, they can even be utilized as concrete formwork. Perforations are available for W-70/900 and W-115/750 profiles to reduce reverberation, for example in sports halls.
The versatility of steel enables innovative and responsible solutions in construction and industry, as it is a durable, long-lasting, and recyclable material.
Weckman Self-Supporting Roofing Sheet
W-130/950
Coating on either A or B side
Base material thicknesses 0.7–1.2 mm
Nominal effective width 951 mm
Total width ~986 mm
Product CE-marked
Dimensions according to SFS-EN 508-1 tolerances
Base material options: galvanized, polyester, PVDF, Pural, and Pural matt coated
W-70/900
Coating on A or B side
Base material thicknesses 0.6–1.0 mm
Nominal effective width 900 mm
Total width ~948 mm
Product CE-marked
Dimensions according to SFS-EN 508-1 tolerances
Base material options: galvanized, polyester, PVDF, Pural, and Pural matt coated
W-115/750
Coating on either A or B side
Base material thicknesses 0.7–1.0 mm
Nominal effective width 750 mm
Total width ~782 mm
Product CE-marked
Dimensions according to SFS-EN 508-1 tolerances
Base material options: galvanized, polyester, PVDF, Pural, and Pural matt coated
W-155/840
Coating on either A or B side
Base material thicknesses 0.7–1.5 mm
Nominal effective width 840 mm
Total width ~895 mm
Product CE-marked
Dimensions according to SFS-EN 508-1 tolerances
Base material options: galvanized, polyester, PVDF, Pural, and Pural matt coated
Weckman Anti-Condensation Coating and Purlins
Anti-Condensation Coating
Weckman anti-condensation coating provides effective protection against moisture forming on the underside of the roofing sheet; no separate underlayment is required. The coating is suitable for roofs with a minimum pitch of 10°.
The material used is PES fleece mat, which is bonded to the underside of the sheet during profiling. Weckman anti-condensation coating has excellent absorption capacity, 900 g/m² (water) on a horizontal surface.
Anti-condensation coating is available for the following profiles:
W-20R/1100
W-45JR/900
W-70/900
W-115/750
W-130/950
W-155/840 (spray-applied anti-condensation)
Purlins
Steel purlins (Z and C models) are used as secondary supports in ceilings (Z) and walls (C).
Products CE-marked.
Z, C, and U Purlins
Purlin models Z, C, and U
Base material hot-dip galvanized steel S350GD+Z (EN 10147)
Base material thicknesses 1.2–3.0 mm
Purlin heights 100–300 mm
Weckman Load-Bearing Structures – For Professionals
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Self-Supporting Sheet
Self-supporting sheets are a modern and versatile building material that has gained popularity, particularly in the manufacture of lightweight and durable structures. They combine the best properties of steel and other materials, offering excellent strength and longevity compared to traditional building materials. In this article, we examine the characteristics, advantages, and applications of self-supporting sheets.
What Is a Self-Supporting Profiled Sheet?
A self-supporting sheet is a specially designed steel sheet whose shape achieves maximum load-bearing capacity while providing maximum effective width (= the width that one sheet covers laterally). Thanks to its design, the profiled sheet is capable of bearing the structure’s own weight and the load placed on the profiled sheet, such as the weight of thermal and waterproofing insulation as well as external loads, e.g., snow and wind loads, without requiring separate support structures such as beams or frames. Self-supporting sheets/profiled sheets have at least hot-dip galvanization of 275 g/m² on both sides as corrosion protection. More demanding climate exposure classes can be achieved by selecting a colored profiled sheet with paint coating in addition to the steel’s hot-dip galvanization.
Advantages of Self-Supporting Sheets
Lightweight and Durable Structure Self-supporting sheets are significantly lighter than traditional building materials such as concrete beams or solid steel structures. This reduces the overall weight of the building and facilitates installation, as the sheets are easier to handle and transport.
Fast, Easy, and Safe Installation Installation of self-supporting sheets is quick because they do not require separate temporary support structures during installation. This can significantly speed up the construction process and reduce labor costs. Sheets can be installed directly in place, saving time and labor. Additionally, due to their large coverage, for example, a roof can be quickly enclosed, which in turn enhances safety.
Corrosion Resistance and Long Service Life Since self-supporting sheets are manufactured from at least hot-dip galvanized steel, they offer excellent protection against corrosion. This makes them particularly suitable for outdoor use and demanding weather conditions. Long service life and minimal maintenance requirements make self-supporting sheet structures a cost-effective option in the long term.
Environmental Friendliness Self-supporting sheets are manufactured from steel, which is a 100% recyclable material, resulting in minimal environmental impact.
In the future, recycled steel and fossil-free steel will be used in the production of profiled sheet raw materials.
