Insulation for I-joists with hydronic radiant system
We have installed staple up aluminum radiant heat transfer plates to 3/4” Advantec subfloor in our basement. There are engineered I Joists, 16” on center. We stapled kraft faced aluminum reflective barrier (Radiantec brand) 1” below the Pex tubing, kraft faced side down. What insulation is recommended below the reflective barrier. We are thinking of using Kraft faced R-19. If this is appropriate would kraft face be installed facing cement floor? The basement is heated. It will not be a finished basement. We live in Maine- Zone 6.
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