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.

Also available in a black mat facer finish for open-joint cladding systems, Cavityrock® Black combines your insulation install with masking in a single step, reducing installation time and material cost to achieve your desired design aesthetic.

Features

• The faced Cavityrock® board reduces installation time and material cost to achieve your design aesthetic, particularly in open or exposed joint cladding applications
• Offers the same excellent thermal performance, fire resistance, and moisture control as unfaced ROCKWOOL Cavityrock®
• At greater than 2” the dual-density composition of Cavityrock® Black (a high-density top layer and lower density bottom later), unique to ROCKWOOL in North America, provides benefits to installation, such as increased rigidity for fastening, coupled with better conformity against the wall
• The fleece on Cavityrock® Black is chemically bonded to the insulation during the manufacturing process, offering better mechanical properties and superior long-term performance
• Cavityrock® Black achieves a flame spread (FS) index of 10 and smoke development (SD) index of 25, per ASTM E84, and a FS of 10 and SD of 10 when tested under CAN/ULC S102
• The black facer is a glass fiber tissue with a black organic mineral coating, providing long-term UV stability, achieving a rating of 5/5 at 250 hr. and 500 hr. exposure, and a rating of 4/5 at 750 hr. and 1,000 hr. exposure when tested to ISO 105-AO2