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  1. Promaster Builds and Conversions
    Hello again everyone, I have been going down the post rabbit hole all morning now trying to figure out some specifics on my insulation. The previous owner used rockwool all around. I don't really like the idea of that in places I can't seal well and from the research by GaryBIS (Testing...
  2. Promaster Builds and Conversions
    Hey guys! As many seem to do, I used polyiso board (double layered 3/4 inch) and cut to shape for my rear door windowless panels. I wasn’t sure if it should fit to the smaller portion or the larger portion, so I chose the small one and decided to fill the space with some careful layers of spray...
  3. Promaster General Discussion Forum
    I just picked up some polyiso and have some concerns. To my surprise it was faced not with foil, but with a fiberglass paper. Polyiso is very hard to find in the area right now, and this was a delivery from Salt Lake, very good price. I decided to take it, head home and do some reading...
1-3 of 3 Results