Is there a better green method to frame a floor over a concrete slab?
Turning a garage into a habitable room and we are installing a new wood sub floor (needs to be 5″ higher than the slab) over an existing concrete slab. We are presuming there is no membrane below the slab. In past jobs we have put down a 6mil membrane and floated PT 2xs with 3/4″ ply on top. I am wondering if there is a better method by which we didn’t use pressure treated wood. Any ideas are appreciated. Thanks.
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