How To Add Extra Insulation In Attic

In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment.

How to add extra insulation in attic.

The pros charge 1 500 to 2 000 to do a 1 200 sq ft. Check the attic walls and floors adjacent to an unheated space like a garage or basement. Inspecting and evaluating your insulation. According to the u s.

Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face. 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. You can do it yourself for about 500. Blown in insulation overview.

If you want more storage space in your attic you can add shelving or other configurations. To determine whether you should add insulation. If you do have mold in the attic you ll need to have it treated and removed by a professional before you add insulation. Pull down stair or ladder.

The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. Add the right kind of insulation. Affix rigid foam insulation to the attic side of the hatch or door.

How much does attic insulation cost. How to add extra insulation to an attic. Faced insulation should not be placed on top of existing insulation in the attic. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.

When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic. Blowing attic insulation isn t hard but it s dusty sweaty work. Department of energy fibgerglass batts have an r value of 3 2 per inch while loose fill fiberglass. The vapor retarder on top of or between layers of insulation can trap moisture.

Multiply the number of inches of insulation by the r value per inch. 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. You can add loose fill on top of fiberglass batts or blankets and vice.