The Owens Corning Thermafiber® RainBarrier® Mineral Wool Continuous Insulation Board is a high-performance rigid mineral wool insulation designed for continuous exterior insulation and ventilated rainscreen wall systems. Manufactured from non-combustible mineral wool, RainBarrier® provides outstanding thermal performance, fire resistance, moisture management, and sound attenuation, making it an ideal solution for commercial, institutional, and multi-family construction.
Each board measures 2.5" × 24" × 48" and delivers a nominal R-value of 10.5. The semi-rigid boards are water repellent while remaining vapor permeable, allowing wall assemblies to dry efficiently and helping reduce the risk of trapped moisture. Each bundle contains 6 boards, covering 48 square feet, with 12 bundles per pallet for a total pallet coverage of 576 square feet. Thermafiber® RainBarrier® insulation is non-combustible and contributes to fire-resistant wall assemblies while also improving the acoustic performance of the building envelope.
Thermafiber RainBarrier HD is a high density board with a consistent 6.0 pcf density throughout the entire thickness of the product.
Specifications
Owen's Corning Mineral Wool Thermafiber
Insulation
