Meets the requirements of ASTM C 728, Type 1
TopLoc® Coating: Top surface is sealed with this special coating to reduce excessive asphalt absorption in hot-asphalt applied roofing systems.
Expanded Perlite: Provides good dimensional stability, excellent insulation value with stable R-value and fire resistance.
Low Thermal Insulation Board: Composed of expanded perlite, reinforcing cellulosic fibers and selected binders.
Reinforcing Cellulosic Fibers: Consists of recycled newsprint to provide strength to the board as well as high recycled content. JM utilizes third party certification by UL® Environment to certify the recycled content and contributes to the LEED Materials and Resource (MR) credit 4.
Hot Asphalt Friendly: Protective cover board or low thermal insulation board proven to reduce the tendency for blistering in hot asphalt applications.