Attic Additional Insulation

Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.

Attic additional insulation.

Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. 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. You can add loose fill on top of fiberglass batts or blankets and vice versa. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.

Closed cell and open cell aka 2 pound and pound respectively. Choose from two types. 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. According to home advisor insulating your attic can cost between 1700 to 2100.

The main factors that impact the cost are. Square footage of your attic. Spray foam attic insulation spray foam offers the best attic insulation performance available. These insulation levels will keep heated air from migrating out in winter.

When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic. Inspect the exterior walls by using an electrical outlet. Compared with the average cost of insulating 1 343. You can achieve better thermal performance in your attic by adding an additional layer of insulation.

It needs to be unfaced. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. If you use fiberglass over loose fill make sure the fiberglass batt has no paper or foil backing. 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.

Contractor or insulation installer s fee. Insulation that is wet compressed or scattered loses its. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. The vapor retarder on top of or between layers of insulation can trap moisture.

Builders usually insulate the attic during construction but sometimes additional insulation is required to increase energy efficiency. Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49. Type and material of your insulation.