The Owens Corning Thermafiber® RainBarrier® Mineral Wool Continuous Insulation Board is a premium rigid mineral wool insulation designed for continuous exterior insulation, ventilated rainscreen systems, and cavity wall assemblies. Manufactured from non-combustible mineral wool, RainBarrier® provides exceptional thermal performance, superior fire resistance, moisture management, and sound attenuation. It is an ideal choice for commercial, institutional, multi-family, and high-performance residential construction where energy efficiency and fire safety are critical.
Each board measures 2.5" × 16" × 48" and provides a nominal R-value of 10.5. The rigid boards are water repellent while remaining vapor permeable, allowing wall assemblies to dry efficiently and helping reduce the potential for trapped moisture. Each bundle contains 6 boards, covering 32 square feet, with 18 bundles per pallet for a total pallet coverage of 576 square feet. Thermafiber® RainBarrier® insulation contributes to fire-rated wall assemblies while enhancing the acoustic performance of exterior wall systems.
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
