Anyone ever used spray polyurethane foam for insulating a conversion? It is mostly used in houses. I was thinking about sheeting the inside with 7/16 and then have it sprayed, then as I talked to salesman we desided that putting up the outside skin and then spraying it would be better. The R value is about the same as rigid foam, however it would add structure and seal all cracks and leaks. My concern is it pushing out on the outside skin making it look bad.
I already ordered and recieved the foil foam form [URL=http://www.insulation4less.com]and plan on using it. I should have a R-23 in my walls and roof with a R-30 on my floor. I'm going to put down the foil foam then my 3/4 on the floor then another layer of foil foam. You can't over insulate in my opinion.
Let me know your opinion on the spray?
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