Roof Cover Board Perlite

High density expanded perlite based cover board engineered to optimize system performance across all applications.

Roof cover board perlite.

When used as a cover board it needs a surface coating to prevent excessive absorption of asphalt as well as blistering. Meets the requirements of astm c 728 type 1. Perlite volcanic materials combined with minerals fibers and cellulose binders. Energyguard perlite recover board is a heavy duty 1 2 thick perlite roof insulation board composed of expanded perlite cellulose binders and waterproofing agents.

It s light weight provides ease of handling. Energy and the environment. Perlite based cover board refer to the safety data sheet and product label prior to using this product. Rigid roof insulation board.

Low thermal insulation board. Composed of a closed cell polyisocyanurate foam core bonded in the foaming process to 1 2 thick duraboard an expanded perlite mineral aggregate board on one side and a fiber glass reinforced facer on the other. Shown to withstand delamination deterioration warping and job site damage far more effectively than paper faced gypsum board and other conventional roofing products such as wood fiberboard and perlite certified by ul for use as a fire barrier over combustible and noncombustible decks in accordance with the ansi ul 790 and ulc s114 test standard. Perlite also changes dimensions when it becomes wet.

It is treated for surface retention of bitumen and available in 2 x 4 0 6m x 1 2m 4 x 4 1 2m x 1 2m and 4 x 8 1 2m x 2 4m with a nominal thickness of 1 2 13mm. Perlite is also a fibrous insulation board that contains both inorganic and organic materials. Mineral fiber compressed rock wool or mineral fiber. Structodek is lightweight compared to many other roofing cover boards and it is fiberglass free and cuts with a standard utility knife.

Top surface is sealed with this special coating to reduce excessive asphalt absorption in hot asphalt applied roofing systems. Plywood osb compressed layers of wood bound with a resin sometimes with veneer. Composed of expanded perlite reinforcing cellulosic. The inorganic materials are expanded silicaceous volcanic glass which is added to organic wood fibers and bonded with asphaltic binders.

Superior dimensional stability over competitive gypsum fiber boards is due to their low coefficient of thermal and hygrometric expansion. Even though the r value of perlite is low it is often used as a component in multi layered systems or as a cover board in built up and modified bitumen membrane roof systems.