Tile Over Foam Insulation

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.

Some types of thicker foam board insulation are available but they may need to be special ordered. If anything i would use 3 4 exterior plywood over the styrofoam and then an isolation membrane and tile over that. Foam board insulation is easy to use and is a great diy way to add some insulation. If your basement slab lacks sub slab foam you ll have to install the insulation above the slab.

Both require an isolation board or slip sheet. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. For tile i d contact the tile council of america or now it s called tile council of north america. 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. 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. I usually stick them down with ardex x7r or mapei keraquick lay the ufh slc with arditex na or mapei fibreplan then tile with x7r or keraquick subject to the type of tiles being fixed.