Metal Deck Roof Assembly

The panel clips are to be attached to the corrugated metal substratum with one no.

Metal deck roof assembly.

Or mineral fiber or glass fiber insulation boards laid over gypsum sheathing and covered by a class a b. While a class 1 assembly can be substituted for a class a b or c roof assembly a class a b or c assembly cannot be substituted for a class 1 roof assembly. Trusses supporting metal roof deck panels covered by 1 2 12 7 mm regular gypsum sheathing either loose laid or adhesively or mechanically attached to roof deck. Any ul classified type g1 g2 or g3 base ply sheet type 15 20 or 30 felt or ul classified prepared roofing accessory or gcp applied.

Any thickness polyisocyanurate foamed plastic. Thermapink should be attached with stress plates and should only be used over steel decks if a thermal barrier typically gypsum board is installed between the deck and the thermapink. Deck should not be specified as vented when it is not required. The roof deck most underlayment most roof coverings membranes and air films cannot be considered insulation.

10 pancake head tek screw. The corrugated metal substratum is placed over the specified roof insulation and fastened through the roof insulation to the steel deck with min. Some materials in the roof assembly may require venting of the steel roof deck such as roof systems with light weight insulating concrete. G p gypsum densdeck united states gypsum co securock glass mat roof board type sgmrx national gypsum dexcell glass mat roof board or dexcell fv glass mat roof board.

For insulated steel roof deck assemblies fm class 1 includes fm 4470 and fm 4450 approval standard for class 1 insulated steel decks roofs. 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. Venting does not impact the structural performance of the steel deck.