How does radiant heat change the smell after a late discovery on a mid-century slab?
Warm concrete can push leftover residue out of the underlayment even when the finished floor looks fine. A sniff test on a cool floor misses pockets that come back when the radiant system cycles. Probe under the finishes, measure moisture, and tear out to a checked clean edge. Check again after measured drying, with the heat back on. Photos help if a design-minded buyer later asks why so much of the slab finish was redone.



