Long-term effects of spray foam?
I have a client who’s “not sure of the long-term….20 years from now effects of open or closed cell foam on his family.” Right now his house is leaking like a sieve, and is balloon framed and back plastered. Of course he’s just finished painting all the interior walls.
A bit of history:
We just finished installing a lot of built in bookcase and he was not interested in insulating the walls from the inside before ( there was air gushing in!) we installed. This winter he actually had condensation on the lower sections of the inside of the bookcase! Since his exterior needs paint I think I’ve convinced him to go the dense pack cellulose route even though he’ll not get the full effect due to the back-plastering. My insulation vendor will drill through the backplaster and get some insulation in the remaining cavity. I think I can get them to, at some point before exterior painting, let me insulate and air seal the exterior using rigid foam, which will do them a lot of good.
Right now he has some sort of sprayed gyp-crete cement product acting as an air barrier on his mud sills in the basement. The product really didn’t expand much into the nooks and cranny’s and I can feel drafts working their way through. I’d like to foam spray the remaining mud-sills ( most of the untreated area is just bellow the bookcases). The problem is that, as above, he’s afraid of the product.
Can you offer me any advise or point me to info to either ease his mind about the foam ( I’d prefer to use closed cell, but if open is safer I’ll go that route). If he has a valid concern, I’d like to hear that as well. Maybe you have another suggestion or material that I can use to get the job done.
If he had contacted me earlier I would have tracked one of you down at the NESEA convention.
Thanks in advance.
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