![]() ![]() This is more common with closed cell foam, but it happens with open cell foam, too. Spray foam contracts and pulls away from framing.Spray foam installers didn’t understand the building envelope and sprayed either too little or too much.Spray foam installers missed some of the air leakage sites.In order of prevalence, here are the problems I’ve seen, with explanations following the list: I’ve seen a number of houses with problems even though they’re insulated with spray foam. ![]() What’s not guaranteed, however, is that all spray foam homes will be efficient and comfortable. Since spray foam is both insulation and air barrier, proper alignment of insulation and air barrier is guaranteed. ![]() The building envelope should completely surround the conditioned space, and the insulation needs to be in contact with the air barrier. Spray foam comes in two flavors, open cell and closed cell, and provides both parts of the building envelope – the insulation and the air barrier. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |