Originally Posted by
Jim Becker
You use full size sheets except over the troughs...so the majority of the floor is done "normally". You're just making things easy by having removable panels just over the duct work. Some folks actually use steel for that so they don't have to worry as much about supporting the joint between pieces, but 3/4" underlayment plywood (not OSB) is pretty strong stuff..
Is any vapor barrier necessary? I'm assuming yes.
Would pouring an epoxy floor coating over the cement provide a better vapor barrier (I would think yes), albeit at a greater cost?
Last edited by Alan Lightstone; 08-23-2017 at 8:54 AM.
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