Putting Insulation In My Attic

The higher the r value the better the thermal performance of the insulation.

Putting insulation in my attic.

These insulation levels will keep heated air from migrating out in winter. Earlier this year i got a question about a home that had spray foam insulation in the attic. Square footage of your attic. 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. Then pivot in place and do the same thing to the other side. According to home advisor insulating your attic can cost between 1700 to 2100. Nothing unusual about that.

The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Contractor or insulation installer s fee. It makes much more sense and cents to insulate the attic floor which in effective is insulating the ceiling of the rooms below. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.

In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. You can achieve better thermal performance in your attic by adding an additional layer of insulation. For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6. The idea is to keep the temperature inside the attic as close as possible to the outside air temperature.

Move across the attic until you ve hit your desired height at every point. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.

The main factors that impact the cost are. Add the right kind of insulation when adding additional insulation you do not have to use the same type of insulation that currently exists in your attic. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.

Block all vents in the attic floor with baffles making sure to extend the baffles at least four inches above the planned thickness of your insulation. Hi kate it s not necessary to insulate attic walls because it s an unheated space.