Attic Additional Insulation

Insulation that is wet compressed or scattered loses its.

Attic additional insulation.

Contractor or insulation installer s fee. The vapor retarder on top of or between layers of insulation can trap moisture. You can add loose fill on top of fiberglass batts or blankets and vice versa. When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.

It needs to be unfaced. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. Inspect the exterior walls by using an electrical outlet. The structural elements are usually exposed in these areas which makes it easy to see what type of insulation you have and to measure its depth or thickness inches.

Closed cell and open cell aka 2 pound and pound respectively. Choose from two types. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. These insulation levels will keep heated air from migrating out in winter.

Type and material of your insulation. If your insulation doesn t measure up and you need more installation can be done as a weekend diy project or you can call a professional installer to handle the job. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live. Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.

Spray foam attic insulation spray foam offers the best attic insulation performance available. If you use fiberglass over loose fill make sure the fiberglass batt has no paper or foil backing. You can achieve better thermal performance in your attic by adding an additional layer of insulation. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.

The main factors that impact the cost are. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49. Builders usually insulate the attic during construction but sometimes additional insulation is required to increase energy efficiency.

Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. In fact experts at remodeling magazine have found that buyers are willing to shell out an extra 1 446 for a home with an insulated attic. Square footage of your attic.