You can attach wood sleepers to the floor fill the gaps with rigid foam insulation and then apply your finish flooring.
Best insulation over concrete floor.
As the slab will only be able to dry upward the slab should be allowed to dry before finishes are applied.
Concrete is cold and hard but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient.
If the concrete floor is dry and reasonably level insulate directly on top with a rigid foam insulation that is impervious to moisture air leakage and radon gas.
Address uneven floors prior to installing any floor system the low spots should be fixed with concrete patch or floor leveler.
1 to prepare for insulating the floor first evaluate the condition of the concrete.
If you know you have issues with moisture tend to those problems before installing the insulation.
You may need to grind down significantly high spots to ensure an even surface.
Once the basement is prepped choose an insulation to reduce heat loss and moisture transfer from the slab.
Also check the floor for smoothness and level.
When slab insulation is provided a sheet polyethylene vapor barrier should be located over the rigid insulation and in direct contact with the concrete slab.
The reflectix concrete slab insulation is an innovative easy to handle product that increases the energy efficiency of radiant floor and snow melt systems under concrete.
There are two ways to handle insulating concrete floors.
If the basement floor is wet hire a professional find the source of the problem and fix it before doing anything.
Here we look at why insulating concrete floors is so important and offer tips on choosing and installing concrete floor insulation.
Mortar a trowel and grout are used in the installation of tiles and the work is more difficult and time consuming than covering concrete with other fabrications.
How to insulate a garage floor above a concrete slab.
Laying tile over concrete is more complicated than other installations as the concrete must be completely level and sealed with a concrete sealer prior to installation.
Insofast eps foam panels provides a one step solution to finishing a floor with embedded studs built in to the.