Lucas Specialty Rock B4 (3/4" to 1-1/4") x 1/4" Tapered Perlite Board

SKU: 577894

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.

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