Insulation, Radiant and Vapor Barriers - foam insulation cavity fill?
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carl1
12-22-08, 04:48 PM
Hi,
I live in the Philadelphia area and had a guy quote me to inject "Tripolymer" foamed-in-place insulation into the space between my brick veneer outer wall and the inner wall of my house. The space is about 1.5 inches wide and he says it will help seal the building envelope as well as give me an R-5 to R-8 insulation blanket on the walls of my house. The foam is relatively new I think, it's not the expanding polyurethane type, but rather a water-based, pre-expanded type, I think similar to Retrofoam, which I've also found online. My concern is whether it could be harmful to fill in that space between the brick and the inside wall in terms of moisture build-up and so forth. Thoughts?
I live in the Philadelphia area and had a guy quote me to inject "Tripolymer" foamed-in-place insulation into the space between my brick veneer outer wall and the inner wall of my house. The space is about 1.5 inches wide and he says it will help seal the building envelope as well as give me an R-5 to R-8 insulation blanket on the walls of my house. The foam is relatively new I think, it's not the expanding polyurethane type, but rather a water-based, pre-expanded type, I think similar to Retrofoam, which I've also found online. My concern is whether it could be harmful to fill in that space between the brick and the inside wall in terms of moisture build-up and so forth. Thoughts?