Perlite Roof Insulation Weight

Perlite has a typical density of 3 4 pounds per cubic foot in building insulation products and is described by various industry sources as inexpensive and dimensionally stable doesn t shrink and non combustible.

Perlite roof insulation weight.

Because of its lightweight there can be economies in the design of the structure. It is the ideal construction aggregate filler for masonry fill insulation roof decks floor systems and other significant areas that need insulation. Lightweight perlite insulating concrete is light in weight ranging from about 20 40 lb ft3 320 640 kg m3 depending on the desired density and insulating value. In recover applications all wet areas of the old roof must be removed.

Typical physical characterictics of perlite. 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. Expanded perlite s high insulating qualities light weight and versatility make it an essential part of the construction industry for loose fill insulation and lightweight insulating concrete. Rigid roof insulation board.

Expanded perlite can be manufactured to weigh as little as 2 pounds per cubic foot 32kg m 3 making it adaptable for numerous applications. Perlite is a versatile and sustainable mineral that is mined and processed with a negligible impact on the environment. It is also widely used as a separation board over existing roofs in recover installations. Typical density is 27 lb ft3 432 kg m3.

If ignited energyguard perlite roof insulation is a homogenous board composed of expanded perlite particles selected binders and cellulose fibers which give energyguard perlite roof insulation its insulating efficiency. It s light weight provides ease of handling. A built up roof for example will typically include the built up membrane itself with or without gravel as well as some kind of insulation and cover board which will vary in thickness from roof to roof. Since perlite is a form of natural glass it is classified as chemically inert and has a ph of approximately 7.

Ga gafo 1 80 0 roof 4 11 energyguard perlite roof insulation description smolder if ignited. Energyguard perlite roof insulation is designed to be used directly over structural roof decks. When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. The minimum recycled content is 25 by weight.