Modified Bitumen Roof On Concrete Deck

When these decks are used as a substrate for built up or modified bitumen roofing the following criteria are recommended.

Modified bitumen roof on concrete deck.

Table 1 product dimensions test specification product description gafglas ply 4 39 37 1 meter wide astm d2178 smooth surfaced asphaltic ply sheet reinforced with fiberglass mat. Gaf ruberoid modified bitumen roof systems for cementitious wood fiber decks. Topside pressure relief is also suggested. Gaf ruberoid modified bitumen roof systems for gypsum decks.

Certainteed modified bitumen roof system over concrete decks. Lightweight concrete 82 5 psf. Epdm roof membrane 90 mil fully adhered membrane only 0 56 lbs. Steel decks wood decks concrete decks lightweight insulating concrete decks and cementitious structural wood fiber decks.

When lightweight insulating concrete is poured over a galvanized metal deck the metal deck should be perforated to provide underside venting. The modified bitumen roofing system consists of six foundational elements. The modified bitumen membrane sheeting is the main element of the roofing system and it is made from an infusion of polyester fiberglass or a combination of both. Modified bitumen roofing membranes 5 the deck must be completely dry.

Gaf conventional built up roof system for concrete decks. Gypsum roof board 1 2 inch thick. There are a number of structural roof deck types. Gaf ruberoid modified bitumen roof systems for wood decks.

Modified bitumen 2 ply membrane. The substrate can be either concrete or wood structure with a roof membrane over the top. Consult a professional to determine if a vapour retarder is a necessary component for your roofing system. Modified bitumen app sbs deck type.

Certainteed conventional built up roof system over concrete decks. Dibiten will not be responsible for leaks resulting from splits in the roof membrane which are caused by cracking of the gypsum or light weight insulating concrete deck regardless of the causes of the deck cracking. Multi ply sbs modified bitumen roofing lightweight insulating concrete paradiene 20 30 nvs insulation. Trade names of products manufactured or labeled by applicant.