16x16 Travertine Install Tips
I'm installing 16x16 travertine on a 1500 sq ft floor. Subfloor is 3/4" tongue and groove OSB, with joists 2X8 16" on center. We would like to add radiant floor heating. I'm thinking Warm Wire.
Without the floor heating, I would add a layer of 1/2" plywood, then use Ditra XL for my underlayment.
However, with the Warm Wire, can I set the wire directly over my subfloor, add a 1/4 - 3/8" layer of leveling compound, then the Ditra XL? Or must I install that 1/2" plywood in addition to the leveling compound.
I'm not comfortable setting natural stone on such a large floor surface (over subfloor), let alone add radiant heating to the mix.
Any suggestions? Should I consider another source for the floor heat?