It has a high R-value. Its resistant to water ... you need to know about DIY spray foam insulation. Closed cell spray foam density is measured by weight. For example, a 12-in.

What would you suggest? Thanks, Julia. Answer: Insulating the inside of a foundation with high density spray-on polyurethane foam may be the best method, regardless of the composition of the walls.

High-quality insulation helps keep your utility bills low and extend the life span of your hot tub. Full foam is better than partial foam insulation for keeping in heat, and the density of the ...