re: Anyone here have their entire house spray foamed?

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The house has a 2' clearance under.

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My house is on piers of that height and I had the closed-cell foam sprayed under between the floor joists. This was back in 2007, so it was about $1200 for 900 sq ft, with the cured foam being about two inches thick. Only issue I’ve had is if you need to access plumbing underneath for repairs, the foam’s a bear to cut out around where you need to work. Once it’s on there, it’s definitely on there.