J & S Supply is a dedicated distributor of Rockwool CavityRock Mineral Wool Insulation serving New York, NYC, Brooklyn, Queens, Long Island, Westchester, New Jersey, and Connecticut. CavityRock is a semi-rigid, mineral wool insulation board designed for exterior cavity wall and rainscreen applications. It installs easily by pressing between studs. CavityRock Mineral Wool Insulation is also non corrosive, non combustible, and mold resistance making in perfect for projects where moisture is a major concern.

Rockwool CavityRock Mineral Wool Insulation has a monolithic density of 4.4 lbs/ft3  for thicknesses under 2″. It has a dual density of 6.2 lbs/ft3 outer layer and 4.1 lbs/ftinner layer for thicknesses greater than 2.5″. Thicknesses range from 1″ to 6″. CavityRock Mineral Wool Insulation is available for 16″ and 24″ frames.

Rockwool CavityRock
Product Data Sheet

Our prime location in Long Island City is close to every major thoroughfare in the Metropolitan New York, New Jersey, and Connecticut area, ensuring our fleet of specialized equipment can deliver fast.


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