Modified Bitumen Roof On Concrete Deck

Consult a professional to determine if a vapour retarder is a necessary component for your roofing system.

Modified bitumen roof on concrete deck. Gaf conventional built up roof system for concrete decks. 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. Multi ply sbs modified bitumen roofing lightweight insulating concrete paradiene 20 30 nvs insulation. Lightweight concrete 82 5 psf.

The pedestal system consists of 7 standard pieces and user supplied recommended schedule 3034 4 215 diameter pvc pipe. Trade names of products manufactured or labeled by applicant. The modified bitumen roofing system consists of six foundational elements. Gypsum roof board 1 2 inch thick.

Topside pressure relief is also suggested. Epdm roof membrane 90 mil fully adhered membrane only 0 56 lbs. Modified bitumen app sbs deck type. 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. Modified bitumen 2 ply membrane. Ice and water shield self adhering. Certainteed modified bitumen roof system over concrete decks.

Steel decks wood decks concrete decks lightweight insulating concrete decks and cementitious structural wood fiber decks. Gaf ruberoid modified bitumen roof systems for gypsum decks. The tile tech pedestal system is designed for concrete pavers to lay level over a built up roof. There are a number of structural roof deck types.

Modified bitumen roofing membranes 5 the deck must be completely dry. When these decks are used as a substrate for built up or modified bitumen roofing the following criteria are recommended. 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. When lightweight insulating concrete is poured over a galvanized metal deck the metal deck should be perforated to provide underside venting.