||10-31-2012 04:51 PM
Insulation under my tile floor> above cconcreate
I am installing sun-touch radient flooring in my bathroom , to help with the radient flooring I would like to install insulation to assist. My layers would be as follows (existing concrete, add rigid foam - 1/2">self leveling concrete> heating flooring>mortor>tile. My question is that i am wondering if the rigid foam will hold the weight once i bolt the toilet and have someone sit on it or if i should be worried about the tiles cracking?