The other way you could approach it is by using a heating pad over the concrete floor with tile i d also use a isolation membrane here over it.
Tile over foam insulation.
2x2 foot foam tiles are easy to install over concrete tile or any hard flat surface for basement floors kids room and home exercise areas.
You can use either one or two layers of plywood or osb and the subflooring can either be fastened to the concrete with long tapcon screws or it can simply float above the foam.
Some types of thicker foam board insulation are available but they may need to be special ordered.
Foam board insulation is easy to use and is a great diy way to add some insulation.
12 pk blue charcoal acoustic foam tiles soundproofing foam panels sound insulation soundproof foam padding sound dampening studio sound proof padding 1 x 12 x 12 4 2 out of 5 stars 501 19 99 19.
Both require an isolation board or slip sheet.
No neither ceramic tile nor wood flooring should be installed directly over rigid foam insulation.
There are several ways to install subflooring above the rigid foam.
For tile i d contact the tile council of america or now it s called tile council of north america.
If your basement slab lacks sub slab foam you ll have to install the insulation above the slab.
It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches.