The ROCKWOOL Cavityrock® Stone Wool Continuous Insulation Board is a high-performance rigid mineral wool insulation designed for ventilated rainscreen systems, cavity wall construction, and continuous exterior insulation applications. Manufactured from natural volcanic stone and recycled materials, Cavityrock® provides exceptional thermal performance, outstanding fire resistance, moisture repellency, and long-term dimensional stability. Its semi-rigid design allows for easy installation while maintaining a secure fit behind exterior cladding systems.

Measuring 2.5" × 24" × 48", each board delivers an R-value of 10.8 while allowing walls to remain vapor permeable for improved drying potential. Each package contains 7 boards, covering approximately 56 square feet, with 10 packages per pallet for a total pallet coverage of approximately 560 square feet. Cavityrock® is non-combustible, water repellent, and engineered to withstand temperatures exceeding 2,150°F (1,177°C), making it an ideal solution for commercial, institutional, and multi-family construction.

Cavityrock® is a semi-rigid insulation board designed for exterior cavity wall and rainscreen applications. These products offer superior long-term thermal efficiency, fire resistance, moisture control, acoustic performance and are compatible with numerous framing systems and cladding attachment systems.