Semi-Rigid.
Mineral Wool.
Insulation.

PowerWool CavityBoard™ – the premier choice for exterior cavity wall and rainscreen applications.

Buy Online

Available as PowerWool CavityBoard and PowerWool Cavityboard HD.

Approved for use in Canada and the USA.
Buy Online or at your local building supply yard!

PowerWool increases the R-value (or RSI) of your project. Resistant to fire and moisture to preserve insulating value. Choose PowerWool as your semi-rigid mineral wool insulation choice on your next project.

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Why Use PowerWool CavityBoard?

PowerWool was designed to increase the effective thermal value in exterior cavity wall and rainscreen applications. With a consistent density throughout, the product has no need to be placed in a certain direction.