Sub floor radiant heat

[Ports]

What would you guys suggest putting down for a subfloor on concrete radiant heat? Dricore I believe is meant to block cold and moisture, I'd like to block moisture but allow heat to rise. Not keen on laying turf material straight onto the concrete either if it needs affixed to something.

[BGCurtis2nd]

I would recommend asking the manufacturer of your heating system what would be best. There is a variance in the radiant heat systems from one to the other so IMO the manufacture would be the best one to tell you what would be best with their system. I know when I was building homes we would get recommendation from the manufacturer on which flooring worked best with the system we were installing.

[aja]

If you have a properly installed concrete radiant heat floor there should be no moisture issue. Moisture barrier gets laid on the ground first then (hopefully) insulation, then concrete.

[Ports]

That is how it's done.