How To Insulate Floors On Addidiot

Cover the walls with insulation from the sill plate to the plastic covered dirt floor.

How to insulate floors on addidiot. If you have 2 inches of insulation your floor has an r value of 6 4. Fiberglass insulation batts or rolls are the most economical and easiest diy choice for insulating between the floor joist in a crawl space. Department of energy recommends r 11 3 insulation under floors in warm climates and an r 25 6 to 8 in cold climates. Once in place secure the boards with either insulation tape or caulking.

When you re using fiberglass batting insulation material run it about 6 inches or so onto the crawl space floor. If the area of the heated bonus room above the garage is smaller than the area of the garage ceiling you ll need to install blocking between the joists to provide an air barrier where the floor insulation stops. The sill plate is the first piece of framing lumber and it runs on top of the crawl space wall. Most homes require at least r 13 though homes in cold areas can benefit from more insulation.

If you would prefer to install the insulation without the help of a professional one option would be to use foam boards.