Since perlite is a form of natural glass it is classified as chemically inert and has a ph of approximately 7.
Perlite roof insulation weight.
Perlite insulating concrete consists of an appropriate mixture of portland cement perlite aggregate and water.
Typical physical characterictics of perlite.
Energyguard perlite roof insulation is designed to be used directly over structural roof decks.
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.
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.
Rigid roof insulation board.
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 is a versatile and sustainable mineral that is mined and processed with a negligible impact on the environment.
Perlite as a non fibrous non asbestos green building material.
In recover applications all wet areas of the old roof must be removed.
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.
The minimum recycled content is 25 by weight.
Expanded perlite can be manufactured to weigh as little as 2 pounds per cubic foot 32kg m 3 making it adaptable for numerous applications.
Typical density is 27 lb ft3 432 kg m3.
It s light weight provides ease of handling.
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.
Its weight can be varied in the range of 20 to 50 pounds per cubic foot depending on the mix design selected.
It is the ideal construction aggregate filler for masonry fill insulation roof decks floor systems and other significant areas that need insulation.
It is also widely used as a separation board over existing roofs in recover installations.
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.
