Does Spray Foam Insulation Entrap Water?
No. As stated above, Spray Foam Insulation is an opened or closed cell foam which is ideal for architectural purposes. The open cell foam breathes slowly, and any moisture in the buildings’ concrete or lumber can escape through the foam as the building dries out, thus eliminating any risk of lumber rot or mildew usually associated with materials that trap moisture. Closed cell foam will simply not let water penetrate it very easily.
