Concrete Garage Floor Insulation

How to insulate a garage step by step.

Concrete garage floor insulation.

I wrote a tutorial on how to waterproof and seal your garage walls using drylok. Rigid insulation boards is installed between the sleepers close to one another so that there are no gaps in the insulation. Eps 3 xps 2 faced or unfaced. Run the polyethylene up the sides of the walls 3 to 4 inches and secure to the walls with construction tape.

The method shown above is the best way to insulate a concrete floor without digging it up and laying it again with insulation added below the finished surface. The insulation is then laid followed by a polythene separating layer and either a concrete screed or tongue and groove chipboard ready to receive the specified floor finish. Overlap the seams about 6 to 8 inches and seal the seams with waterproof construction tape. Cement 3 concrete 4 existing drywall 2 plywood 5 wood 3 sheathing type.

Here s my step by step process for how i added insulation to my garage. The importance of concrete garage insulation cannot be stressed enough when embarking on the lining out process. Last chance to waterproof your wall. Then the chosen concrete floor insulation material i e.

Finally you will need to add properly sized plywood sheets across the sleepers and finish with the flooring of your choice. Insulating a concrete floor alternative options. How to insulate a garage floor above a concrete slab. Faced 2 unfaced 3.

Concrete is cold and hard but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient. Insulating a concrete floor can save you money on your heating bill making an attached garage or basement warmer and by extension the rest of your house. Lightweight rigid polyisocyanurate pir foam insulation boards such as those manufactured by celotex are among the most thermally efficient commonly available. If you didn t do that before you put the frame up you can still do it now although it s going to be.

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. But it isn t cheap and it can cause additional problems such as raising the floor level too much. Insulate your garage to reduce energy bills and protect your garage against harsh outdoor temperatures. There are two main ways to insulate a concrete garage.

Floor 1 garage 3 under slab 5 more ways to filter. Insulating concrete garage floors begins with covering the entire floor with 6 mil polyethylene which will serve as a vapor barrier.