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crawlspace insulation

sws2_2
sws2_2 Member Posts: 14
in THE MAIN WALL
I have radiant above an unheated crawlspace. Floor is pergo, quiktrac,T&G subfloor with r-19 fibreglass. On a cold day, (0 degrees)Areas where there is no tubing the floor is very cold, in particular around the perimeter. I would like to have the rim joist area and the foundation walls sprayed with a sealing foam. Anyone ever do that?? I could pull down the insulation, cut foam blocks, spray can foam but tht would be very labor intensive.Any other suggestions?? Approx. prices?? I am sure i'm losing a lot of heta downward. Cral is about 45", with about half below grade. Thanks.
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