Services demonstration of waste material removal, application of sprayed-in-place polyurethane foam, addition of blown cellulose insulation. www.domesavesenergy.ca
Foaming the Whole thing would be pretty expencive, we put a skim coat to act as a vapour barrier because when the insulation was removed it had paper backed bags which acted as the vapour barrier so we needed to put it back in, adding a skim coat of 1 5/8" will acheive this.
The foam provides an air tight seal to block drafts. The cellulose works as a better thermal barrier. Together they achieve a higher R-value than either one alone.
Foaming the Whole thing would be pretty expencive, we put a skim coat to act as a vapour barrier because when the insulation was removed it had paper backed bags which acted as the vapour barrier so we needed to put it back in, adding a skim coat of 1 5/8" will acheive this.
BarsandToneLtd 3 years ago
Why not just foam the whole thing? Why add the cellulose?
frankaron 3 years ago
The foam provides an air tight seal to block drafts. The cellulose works as a better thermal barrier. Together they achieve a higher R-value than either one alone.
BarsandToneLtd 3 years ago
Why would you put foam insulation AND cellulose??
I think I would go with "Just" the foam...
mrfoltz 3 years ago