structural decks

Structural Decks offer the benefits of long span construction, enabling the design of lighter and more economic structures, structural decks are specified for use within many high performance roof installations, typically supporting secret-fix/standing seam outer skin roof products.

Whilst meeting the stringent performance requirements that legislation demands, flexibility of these products allows the designer more freedom, enabling clean internal lines and a multitude of options such as convex, concave and even tapered curve elevations.

STRUCTURAL DECK PROFILES

By spanning a decking profile from rafter to rafter, the need for purlins can be eliminated in a portal frame design. A structural deck will perform the function of transferring dynamic and dead loads of the roof covering to the frame, and will also provide the necessary lateral restraint to the main structural frame. It is also possible to design a 'diaphragm' roof (often referred to as a "stressed skin" design) - please refer to our Technical Department if a calculation service is required for the structural decking design on your building.

Structural Decks offer the benefits of long span construction, enabling the design of lighter and more economic structures, structural decks are specified for use within many high performance roof installation, typically supporting secret-fix/standing seam outer skin roof products. Whilst meeting the stringent performance requirements that legislation demands, flexibility of these products allows the designer more freedom, enabling clean internal lines and a multitude of options such as convex, concave and even tapered curve elevations.

By spanning a decking profile from rafter to rafter, the need for purlins can be eliminated in a portal frame design. A structural deck will perform the function of transferring dynamic and dead loads of the roof covering to the frame, and will also provide the necessary lateral restraint to the main structural frame. It is also possible to design a 'diaphragm' roof (often referred to as a 'stressed skin' design) - please refer to our Technical Department if a calculation service is required fro the structural decking design on your building.

Trapezoidal Deck Profile

Designed and specified for use with specialist single ply membrane roof covering systems, the Euroclad trapezoidal roof deck range offers the specifier the benefits of fast-track low pitch installation combining cost, aesthetic, structural and longevity benefits. These profiles would normally be shallower in profile, limited to around 2000m span (please refer to load span tables) and would not be used for diaphragm design.

VAPOUR CONTROL

Unlike metal liner profiles which can be sealed on their sidelap and endlap to form an effective vapour control layer, structural deck profiles are difficult to seal in this manner - and therefore require a separate vapour control membrane to be installed. For standard humidity class buildings Euroclad normally recommends a 500Nms/g vapour resistivity vapour control, however for high humidity (humidity class 4 or 5) it may be necessary to use a 40000Nms/g vapour resistivity product. If there is any doubt as to which specification you should use, a condensation risk analysis should be conducted to access the risk of moisture accumulation within the system - please contact our Technical Department with your project information for our specific recommendations.

Loadspan Tables

Structural Deck - Perforated

Structural Deck - Solid

Installation Examples

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