Insulation injected into area under subfloor

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Old 01-10-21, 08:54 AM
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Insulation injected into area under subfloor

I put a new floor in a bathroom that was built over a concrete porch and just recently found that there is a crack in the concrete that is letting some air into the floor area and was wondering if there was a product or complete diy hack that would allow me to inject foam or something into the floor cavity to insulate those pipes further than the normal pipe insulation I put around them when I re-did the flooring. I realize and donít mind drilling holes in the finished floor in to install , at this moment anything is better than redoing the floor to re-insulate everything. Please help.
 
 

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