Modified Bitumen Roof On Concrete Deck

There are a number of structural roof deck types.

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. Consult a professional to determine if a vapour retarder is a necessary component for your roofing system. 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. Epdm roof membrane 90 mil fully adhered membrane only 0 56 lbs.

Certainteed conventional built up roof system over concrete decks. Lightweight concrete 82 5 psf. Certainteed modified bitumen roof system over concrete decks. Modified bitumen 2 ply membrane.

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. Steel decks wood decks concrete decks lightweight insulating concrete decks and cementitious structural wood fiber decks. Topside pressure relief is also suggested. Multi ply sbs modified bitumen roofing lightweight insulating concrete paradiene 20 30 nvs insulation.

The modified bitumen roofing system consists of six foundational elements. When lightweight insulating concrete is poured over a galvanized metal deck the metal deck should be perforated to provide underside venting. The tile tech pedestal system is designed for concrete pavers to lay level over a built up roof. Gaf ruberoid modified bitumen roof systems for wood decks.

The substrate can be either concrete or wood structure with a roof membrane over the top. Trade names of products manufactured or labeled by applicant. When these decks are used as a substrate for built up or modified bitumen roofing the following criteria are recommended. Gaf ruberoid modified bitumen roof systems for cementitious wood fiber decks.

Modified bitumen roofing membranes 5 the deck must be completely dry. Gypsum roof board 1 2 inch thick. Gaf ruberoid modified bitumen roof systems for gypsum decks. The pedestal system consists of 7 standard pieces and user supplied recommended schedule 3034 4 215 diameter pvc pipe.