I recently bought a house in the Berkshires that has a crawlspace (part cement floor, part rock ledge, part dirt floor). The previous owner had foam insulation installed in part of the crawl floor ceiling (not sure when — probably several years ago).
I don’t know if the foam was properly installed (it doesn’t look professionally done), and it covers some pipes. I’m concerned about possible off-gassing & air quality as well as the possibility of hidden moisture issues.
I have two questions:
— Are these concerns justified?
— Is there a way to safely remove the foam insulation and replace it with something less environmentally hazardous?
Thank you for your expert advice.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part