Super Tough R as underlayment?
Hi, I am finishing a basement. I installed 1" ISO under the slab, and was thinking about laying 1/2" Super tough R panels on top of slab, then basement approved laminate flooring directly on top of that. I would also Tape all seams with Tyvek. Thought it would provide a moisture barrier as well as making the floor less cold. I don't have the headroom for a more elaborate insulation/subfloor system. Any thoughts? Thanks.