Metal Deck Roof Assembly

The key is that the deck or framing is noncombustible.

Metal deck roof assembly.

It was developed to provide a structurally efficient product for use in roof and floor systems. The roof deck most underlayment most roof coverings membranes and air films cannot be considered insulation. For roof assemblies with combustible decks wood plank t g astm e 108 and ul 790 require two additional fire tests. This roof assembly has no insulating sheathing installed above the roof deck.

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. There is no potential for condensation on the underside of the roof. Wide type tp standing seam system or 17 3 4 in. Steel deck is a cold formed corrugated steel sheet supported by steel joists or beams.

Below roof deck spread of flame fm 4450 and ul 1256 are used to judge the contribution of the. 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. 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.

Get free shipping on qualified metal roofing or buy online pick up in store today in the building materials department. 1 an intermittent flame test in which the flame is turned on and off during the roof assembly to resist fire from flaming embers. Berridge metal roof deck panels. Summer design temperature 107 f dry bulb and 71 f wet bulb.

An exception for combustible decks is that 16 oz sq. Potential for condensation in phoenix arizona with unvented roof 1 750 heating degree days. If metal panels are installed over combustible decks the assembly needs to be tested using astm e108 or ul 790. Wide type hstp standing seam system 24 msg min.