Putting Extra Insulation In Attic

Thickness must not be used as the sole factor in determining the r value of loose fill insulation particularly for attic insulation.

Putting extra insulation in attic. An adequately insulated attic reduces your home s energy costs by keeping warm air in during the winter and hot air out during the summer. Check the attic walls and floors adjacent to an unheated space like a garage or basement. Multiply the number of inches of insulation by the r value per inch. The pros charge 1 500 to 2 000 to do a 1 200 sq ft.

If you decide on mineral wool such as glass wool or rock wool you will need to put down a damp proof membrane. Most attics are insulated with blown in loose cellulose r 3 5 per inch blown in loose fiberglass r 2 5 per inch or fiberglass batts r 3 2 per inch. Inspecting and evaluating your insulation. In practical terms you can choose between mineral wool or insulation boards.

Blown in insulation overview. According to the u s. Gaps in the attic or between the lower floors and the attic will let heated or cooled air escape to the great unconditioned outdoors making any insulation you add essentially useless. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment.

The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home. The structural elements are usually exposed in these areas which makes it. In either case get an extra bag or roll you really don t want to run out when you re almost done putting it in. How much does attic insulation cost.

Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself. The number one prep step. How to add extra insulation to an attic.

Cellulose is recycled newsprint treated with a fire.