I am redoing a kitchen and 2 baths in our old farmhouse. While I have the floors and everything gutted I want to add radiant heat to the floors.
The kitchen has a crawl space underneath,very tight. I was thinking putting the radiant above the existing subfloor. What are your opinions on the best way to do this? I priced warmboard and it seems very expensive for my budget.
Heres my thoughts, let me know what you think. Putting down aluminum coil stock over the entire floor for heat transfer. Cutting 5/8" cement board into 7" strips. fasten cement board strips down allowing 1/2" between rows for the pex. Install pex between rows of cement board and cover the rows with gypcrete or thinset. Top it all off with ceramic floor.