I am in the process of building a log home with radiant (in the floor joists) through the house. My wife likes the rustic look of wide plank pine floors and although cheaper and quicker to install than narrow plank hard wood I am concerned with how the wide planks of soft wood would react to the heat (buckling ect). The floor itself will be sitting on 1/2" ply sub-floor which will be sitting on 3/4" ADVANDECs deck which is guarranteed water proof. The 1/2" PEXa will be suspended by clips/traks under everying 8" on center between the joists.
Should I be concerned with cupping/warping or is the fact that the PEXa is under everything and not in the floor enough to negate my worries.