I know it's done all the time. In fact, I know it's done w/hardwood too.
Contact the mfgr. of the flooring and see what they say. I'd also ctc the mfgr. of the radiant system too and ask them. When you're armed w/both 'answers', you'll know what to do.
My best to ya and hope this helps.
Jay J -Moderator
PS: God Bless America!
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