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Mineral fiber insulation


Our Products

Cavity Rock, None
Cavity Rock


This product is specifically designed for use in cavity wall and rainscreen applications.

Two Product variations:

CavityRock MD (mono density) delivers an R-value/inch of 4.2 and is available in thicknesses of up to 2 inches.

CavityRock DD - For assemblies requiring higher R-values, ROXUL's exclusive, dual density CavityRock DD delivers an R-value of 4.3/inch in thicknessess of 2.5 to 5 inches. This unique insulation combines a high density outer layer and a more compliant, low density inner layer that are created simultaneously in a proprietary manufacturing process.

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Rockboard, None
RockBoard™(density between 3.5 & 8 lb/ft3) is a mineral wool insulation board that is non-combustible, water repellent, fire resistant and sound absorbent. This product is a general all purpose board with low thermal conductivity. This board can also be fabricated to different dimensions while still retaining fire, water and thermal properties.

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