Flat Roof Structural Decking

In a flat roof the waterproofing is always supported by a structural roof deck.

Flat roof structural decking.

Topspan insulated roof deck combines a structural deck and metal top sheet in one product the panels are suitable for zinc stainless steel and aluminium standing seam waterproofing systems and single ply membranes. Flat roof deck. Standard structural decking patterns are 2 nominal tongued and grooved t g and 3 and 4 double t g products available with vee or eased edges to meet discriminating architectural requirements. This is usually because low quality leak prone decking materials such as epdm rubber are used often in an effort to save money.

The ceiling will usually be fixed directly to the underside of the joists. The key is in the. On average 300 sq ft. 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.

Their structural performance provides the ideal base for metal standing seams bitumen and green roofs. That means that not only does it act as a roof for the underlying structure it also acts as a deck membrane. Structural decking also known as roof decking should not be confused with lumber intended for residential and non residential outdoor decks. This mostly takes the form of timber based boarding of some type which in turn is supported on joists.

A flat roof s design is both efficient and economical. By spanning a decking profile from rafter to rafter the need for purlins can be eliminated in a portal frame design. Here s how tufdek waterproof decking stands out on a flat roof deck. Flat roofs are nothing new nor are some of the proven materials that cover these often expansive roofs such as those found on factories warehouses big and small box stores apartment buildings large public structures and schools universities.

Unfortunately many homeowners who have a flat deck roof have to deal with frequent leaks. A deck is the structural substrate of a flat roof and should be capable of supporting the static and dynamic design loads as well as any loads occurring during construction from machinery and plant.