Tapered Perlite Board comes with below features:

• Top 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.
• Tapered Design: Factory cut taper, that is easy to install and cut, builds slope into an otherwise flat roofing system, allowing water to drain freely off the roof.
• Reinforcing Cellulosic Fibers: Consists of recycled newsprint to provide strength to the board as well as high recycled content.
• Hot Asphalt Friendly: Perlite board proven to reduce the tendency for blistering in hot asphalt applications.