The Owens Corning Thermafiber® RainBarrier® Mineral Wool Continuous Insulation Board is a premium rigid mineral wool insulation engineered for continuous exterior insulation, ventilated rainscreen systems, and cavity wall assemblies. Manufactured from non-combustible mineral wool, RainBarrier® delivers outstanding thermal performance, superior fire protection, excellent moisture management, and exceptional sound attenuation. It is an ideal solution for commercial, institutional, multi-family, and high-performance residential buildings requiring durable, energy-efficient building envelopes.
Each board measures 6" × 24" × 48" and provides a nominal R-value of 25.2. The semi-rigid boards are water repellent while remaining vapor permeable, allowing wall assemblies to dry effectively while helping prevent moisture buildup. Each bundle contains 3 boards, covering 24 square feet, with 10 bundles per pallet for a total pallet coverage of 240 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
