Question from Cheryl
Hi Debra,
I plan on building a home with radiant in-floor heat. What type of flooring will be safe for me with MCS?
Debra’s Answer
Well, this is a very easy question to answer because the best flooring for anyone to install over radiant heat is also the best flooring for MCS: porcelain, stone, or ceramic tile.
The radiant heat will increase the emissions of any toxic chemicals in other types of flooring, but porcelain, stone, and ceramic tile have no toxic emissions. And These materials are excellent conductors of heat (so they will collect heat and continue to release it after the radiant heating is turned off), do not expand and contract with heat, and are resistant to warping or cracking.
There may be some odor from the mortar, that should outgas quickly, and DO NOT USE GROUT SEALER. Grout sealer is very toxic.
Would you also avoid AMF grout sealer over radiant heating? I thought it was non-toxic.
No AFM grout sealer is fine. I’ve used it and recommend it.