Owens Corning Thermafiber® RainBarrier® Mineral Wool Continuous Insulation Board – 3.5" × 24" × 48" (32 sq. ft./Bundle)
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® provides exceptional thermal performance, superior fire protection, excellent moisture management, and outstanding sound attenuation. It is an ideal solution for commercial, institutional, multi-family, and high-performance residential construction where energy efficiency and life safety are essential.
Each board measures 3.5" × 24" × 48" and delivers a nominal R-value of 14.7. The semi-rigid boards are water repellent while remaining vapor permeable, allowing wall assemblies to dry efficiently and helping prevent trapped moisture. Each bundle contains 4 boards, covering 32 square feet, with 14 bundles per pallet for a total pallet coverage of 448 square feet. Thermafiber® RainBarrier® insulation contributes to fire-rated wall assemblies while enhancing the acoustic performance of exterior building envelopes.
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
Owens Corning Thermafiber® RainBarrier® Mineral Wool Continuous Insulation Board – 3.5" × 24" × 48" (32 sq. ft./Bundle)
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® provides exceptional thermal performance, superior fire protection, excellent moisture management, and outstanding sound attenuation. It is an ideal solution for commercial, institutional, multi-family, and high-performance residential construction where energy efficiency and life safety are essential.
Each board measures 3.5" × 24" × 48" and delivers a nominal R-value of 14.7. The semi-rigid boards are water repellent while remaining vapor permeable, allowing wall assemblies to dry efficiently and helping prevent trapped moisture. Each bundle contains 4 boards, covering 32 square feet, with 14 bundles per pallet for a total pallet coverage of 448 square feet. Thermafiber® RainBarrier® insulation contributes to fire-rated wall assemblies while enhancing the acoustic performance of exterior building envelopes.
Thermafiber RainBarrier HD is a high density board with a consistent 6.0 pcf density throughout the entire thickness of the product.
