Bubble-wrap air space 2″ below in-joist radiant floor heating
My hydronic heating supplier sold me enough foil wrap for the 1600 sq. ft, two storey addition I’ve put on the house. I’ve read conflicting accounts for and against and before I begin or return this material.
I intend to install 2″ styrofoam below slab in the basement addition.
Is bubble wrap efficient/sufficient with an airspace below the radiant floor hearing followed my drywall? or should I add R12 Roxul below this? Or eliminate the bubble wrap and just go with batts?
Thanks Martin, I enjoy your posts and see them frequently in Fine Home Building mag.
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