Metal Deck Roof Assembly

If metal panels are installed over combustible decks the assembly needs to be tested using astm e108 or ul 790.

Metal deck roof assembly.

Winter design temperature 34 f. Metal panel roof systems require a minimum 3 8 air gap between the underside of the metal panel and the covered or uncovered insulation board. Gauge coated steel to be secured to the panel clips by engaging manufacturer s snap on seam with vinyl insert the panel clips are to be attached to the corrugated metal substratum with one no. 1 an intermittent flame test in which the flame is turned on and off during the roof assembly to resist fire from flaming embers.

For roof assemblies with combustible decks wood plank t g astm e 108 and ul 790 require two additional fire tests. Get free shipping on qualified metal roofing or buy online pick up in store today in the building materials department. Wide type hstp standing seam system 24 msg min. Summer design temperature 107 f dry bulb and 71 f wet bulb.

It is used to support concrete or insulating membrane of a roof. It was developed to provide a structurally efficient product for use in roof and floor systems. Wide type tp standing seam system or 17 3 4 in. There is no potential for condensation on the underside of the roof.

Steel deck is a cold formed corrugated steel sheet supported by steel joists or beams. Copper or thicker can be installed over combustible decks and be considered class a without testing. An exception for combustible decks is that 16 oz sq. Berridge metal roof deck panels.

The roof deck most underlayment most roof coverings membranes and air films cannot be considered insulation. Building and energy codes almost always specify a required minimum r value for exterior walls and roof assemblies with above deck insulation so the minimum required r value in your local jurisdiction is something that you need to. Potential for condensation in phoenix arizona with unvented roof 1 750 heating degree days. The key is that the deck or framing is noncombustible.