Metal Deck Roof Assembly

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.

Metal deck roof assembly.

For insulated steel roof deck assemblies fm class 1 includes fm 4470 and fm 4450 approval standard for class 1 insulated steel decks roofs. The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. 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.

Deck should not be specified as vented when it is not required. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. The roof deck most underlayment most roof coverings membranes and air films cannot be considered insulation. The corrugated metal substratum is placed over the specified roof insulation and fastened through the roof insulation to the steel deck with min.

10 pancake head tek screw. Some materials in the roof assembly may require venting of the steel roof deck such as roof systems with light weight insulating concrete. Any thickness polyisocyanurate foamed plastic. 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.

Venting does not impact the structural performance of the steel deck. The panel clips are to be attached to the corrugated metal substratum with one no. Or mineral fiber or glass fiber insulation boards laid over gypsum sheathing and covered by a class a b. 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.