Why Perlite Insulation?
Perlite underfloor insulation is an inorganic product that does not rot, support combustion nor provide a habitat for rodents. Because of its neutral pH, the product does not foster corrosion in piping and electrical wiring that may be in the underfloor area. When used for underfloor insulation, a water repellent, dust suppressed perlite specially produced for this application is used. Perlite Underfloor Insulation Specifications Water repellent, dust suppressed perlite underfloor insulation is produced in accordance with ASTM C549-81 Type IV (water repellent and dust suppressed). Other specifications are outlined below.