Don’t let water vapor get trapped in your walls

Protect your home with Insulation Products that breathe.

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Progressive Foam premium Insulating Sheathing and Fanfold products with StayDry® Technology release water vapor to the outside of the home, helping to protect walls from mold and mildew.

Permeance or “perm” numbers represent the ability of water vapor to pass through a product. It’s important to ensure a home’s walls can breathe so they don’t trap unwanted moisture vapor that could lead to mold and mildew.

.With a perm rating of up to 4.7, insulation products featuring StayDry® Technology allow water vapor generated inside the home to escape. IECC Class III.

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