electric radiant heat under marble
The marble is left over from a previous failed DIY project, and I've decided electric radiant heat would be the best heat for his room. I am redoing an enclosed porch off the master into a mini-nursery, then eventually sun room/green house. It is over an unheated root cellar, so I am wondering about insulating the sub-floor. Are there insulating backer boards? would some 1" foam board hold up between the sub-floor and backer board?
Last edited by forresth; 10-11-2011 at 02:08 PM.