Discussion Starter · #1 ·
I put pex coils in my house inbetween the joists. The house isn't tight yet and there is no drywall- on the 2nd story I have a bathroom where it has 1.5" existing subfloor, and a 3/4" OSB ontop with some mortar and dietra (orange spongy stuff for tile) I can BARELY feel the heat and am concerned I won't feel it at all when the marble is ontop. Will this change after I drywall and the tile is actually mortared in?? Any advice?