Perlite Insulation, What Is It and What Does It Do?
Perlite Insulation is a material that does not contain asbestos and has an R-value of 2.7 per inch. Perlite is a rock of volcanic glass. When crushed, minced, and heated will expand 4 to 20 times its original quantity. When this happens it forms into an inorganic material for insulation. Perlite comes in many forms, from powder, granulates, rough, and sheets. Some manufacturers make the insulation into sheets like sheet rock, or plywood. When using forms other than sheets it weighs about 2lbs per cubic foot. When water is retained in the rock it expands. For building purposes you should get the Perlite insulation in powder or granulates. A less messy way form of perlite insulation is in manufactured insulation sheets.
Perlite insulation has many varied uses. It is resistant to mold, rodents, decay and to moisture uptake. One great use for the insulation sheets would be to place on your floor and then to place your plywood sheets over it. It doesn’t just level your floor; it also controls noise and makes a noise obstacle. Not only is this insulation great to level floors, if you are in a band then it would be great due to its use in creating good acoustics. It is also used in areas exposed to water or damp areas such as bathrooms, kitchens, or basements. Perlite is also a concrete additive, which makes the concrete insulated and light weight. For masonry work, it is additional to insulate the masonry wall cavities of bricks. Also use the perlite insulation between the furring strips of an exterior and interior wall. The use of perlite can make sure your home is well insulated, sound proof, and green.
Thermal Conductivity of Perlite insulation:
Perlite insulation has a refractive index of 1.5. It’s free moisture maximum is 0.5%. The ph (water Slurry) is 6.5 to 8.0 level. The specific gravity is 2.2 to 2.4. The bulk density (loose Weight) is dependent on the expansion course of action in 2 to 25 lbs/ft to the 3rd strength (32 to 400kg/m to the 3rd strength) is the usual range. The softening range is 1600 to 2000 degrees F (871 to 1093 degrees C). The fusion point is 2300 to 2450 degrees F (1260 to 1343 degrees C), and the specific heat needed is 0.2btu/lb degrees F or 387 j/kgk.