Insulation Under Concrete Garage Floor

Concrete is cold and hard but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient.

Insulation under concrete garage floor.

Insulation below the slab suits continuous low level heating gradually warming the thermal mass of the concrete and sustaining it at a consistent temperature. Rapid room warming placing insulation boards above the concrete floor will mean the room warms quickly. Use as much insulation as you can afford there especially if the floor is heated. Namely if these questions are dealt in due time they can cause serious problems later on why we believe that there is more to insulation in general than just purchasing the material and installing on the designated area.

Installing insulation prior to the pouring of a concrete slab floor improves the energy efficiency of the floor and makes it more comfortable. Where the heating is likely to be turned on and off such as in new build domestic properties and a faster thermal response is required the floating floor arrangement of insulation above the slab can be more appropriate. Pros of insulation boards. You can attach wood sleepers to the floor fill the gaps with rigid foam insulation and then apply your finish flooring.

While you can apply insulation over the concrete slab that requires adding wood subflooring and other components that add to the cost and complexity of the project. For installation on concrete foundations and under floor slabs the rigid foam insulation you choose can make a difference of tens of thousands of dollars on a project. Easy to handle insulation boards are fairly light easy to manoeuvre and easy to cut to size. A careful evaluation of these materials performance attributes against the project s needs can dramatically shrink labor and material costs.

Get free shipping on qualified under slab foam board insulation or buy online pick up in store today in the building materials department. Or as demonstrated here you can cover the slab with rigid foam insulation add two layers of plywood and then add the finish flooring. I foamed under the living space but not the shop and the entire perimeter. As you move to the middle of the building less and less insulation is needed unless you want to be able to change the floor temp fast.

There are two ways to handle insulating concrete floors. Garage door insulation project guide. The best way to insulate a slab is to isolate it from the ground. Most of the heat loss occurs at the perimeter.