How To Insulate Garage Floor

This can be a problem if the garage will continue to be used to store vehicles since it leaves you with a substantially raised lip at the doorway to the garage.

How to insulate garage floor.

I wrote a tutorial on how to waterproof and seal your garage walls using drylok. The other consideration for floor insulation is the level of the floor in relation to the rest of the house. Garage insulation costs vary based on the size of the space and the insulation you purchase. Consider all aspects of insulating your garage not just the walls but also the garage doors and the ceiling particularly if you plan to add a heating and or cooling system.

Here s my step by step process for how i added insulation to my garage. How to insulate a garage floor above a concrete slab. This means insulating a two car garage would cost about 338 845. The polystyrene board insulation won t be long enough to stretch across the entire garage.

If there is a step up from the garage into the main part of the house assuming that the garage isn t detached then the insulation and new floor build up can be added to make the new rooms at the same height to the rest of the house. Last chance to waterproof your wall. The foam insulation and two layers of plywood can add as much as 2 inches of height to the garage floor. If you didn t do that before you put the frame up you can still do it now although it s going to be.

And don t forget to take flooring into account. Continue along the floor making sure there s a 2 feet gap between the joists. For example while an epoxy coating will add a protective layer to the floor it won t necessarily add insulating. Drill and screw into place on the garage floor.

Sebring estimates it costs about 50 cents to 1 25 per square foot to insulate a garage. Concrete is cold and hard but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient.