Perlite Roof Insulation Weight

Typical physical characterictics of perlite.

Perlite roof insulation weight.

Perlite is a versatile and sustainable mineral that is mined and processed with a negligible impact on the environment. Expanded perlite can be manufactured to weigh as little as 2 pounds per cubic foot 32kg m 3 making it adaptable for numerous applications. The minimum recycled content is 25 by weight. 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.

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. Perlite insulating concrete consists of an appropriate mixture of portland cement perlite aggregate and water. Fesco board perlite based cover board meets the requirements of astm c 728 type 1 typical physical properties test astm fesco board strength board density pcf kg m3 min c 209 8 128 compressive strength 5 consolidation psi kpa nom c 165 30 207 laminar tensile strength psi kpa nom c 209 8 55 flexural strength psi kpa nom c 203 65 448. It is also widely used as a separation board over existing roofs in recover installations.

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. Rigid roof insulation board. Perlite as a non fibrous non asbestos green building material.

Energyguard perlite roof insulation is designed to be used directly over structural roof decks. Typical density is 27 lb ft3 432 kg m3. It is the ideal construction aggregate filler for masonry fill insulation roof decks floor systems and other significant areas that need insulation. In recover applications all wet areas of the old roof must be removed.

Because of its lightweight there can be economies in the design of the structure. Its weight can be varied in the range of 20 to 50 pounds per cubic foot depending on the mix design selected. 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. It s light weight provides ease of handling.