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It's getting harder and harder to know what to use in green building. Sprayed polyurethane foam is a favourite among green builders because of its high R value and tight seal, but the Environmental Protection Agency is raising
Clik here to view.
It's getting harder and harder to know what to use in green building. Sprayed polyurethane foam is a favourite among green builders because of its high R value and tight seal, but the Environmental Protection Agency is raising
