Overfloor radiant heating
Doing a remodel. Changing out my floors and I’ve always loved the idea of radiant heating and trying to make it work. I have a concrete perimeter with a wooden subfloor over a crawlspace. So, not the ideal set up (as a concrete slab seems best from my limited research), but it seems still possible.
I’ve decided to go with the setup these guys offer: http://www.eagle-mt.com/radiantmax/radiant_overfloor.php
I might not buy their package but use their idea. Basically, PEX tubing in aluminum plates, over wooden subfloor, separated by OSB. I realize this might not be the most effective radiant setup, but alas, every other option I’ve searched seems price prohibitive to me. Seems like all I’m paying for is PEX (cheap), aluminum plates (sorta cheap), and OSB (cheap). Money-wise, I can do this.
A few questions for the experts here:
1) what do you think? Is this an ok idea?
2) Do I need a insulating barrier under the PEX and over my subfloor? Could you please give me specifics as to what is best I am dumb at this?
3) I know I need to get engineered wood floors (real wood, sadly, will cup). But can I put a really thin (1/4″) plywood over the OSB and PEX? I need to do a lot of work in my house after the radiant is installed (drywall, insulation) and I would love to have a thin plywood to prevent the PEX from being punctured.
Thank you and happy holidays to all.
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