Adding Bats Of Insulation To Attic

Lay the batts perpendicular to the joists so.

Adding bats of insulation to attic.

The pros charge 1 500 to 2 000 to do a 1 200 sq ft. Measure how much insulation you already have. Both can be added to uninsulated attics or layered over existing material. How much does attic insulation cost.

This will lead to non uniform r values. This type of insulation. Cotton batts though are cool because they re made of recycled blue jeans. You can do it yourself for about 500.

The problem with batts however is that they don t work well because they don t fill the space well. Check the depth using a tape measure. Blown in insulation thickness can vary in an attic space. One for attic prep and the second to actually blow the insulation.

The r factor of blown in fiberglass is usually 2 3 to 2 8 per inch of material. Blowing attic insulation isn t hard but it s dusty sweaty work. It s available in fiberglass mineral wool plastic fibers and natural fibers. Put on goggles and gloves to protect yourself while handling.

Loose fill or batt the common term for blanket insulation. Install fiberglass batts over existing batt insulation. How do i add insulation to existing attic insulation. To make insulating an attic easier grab a helper and set aside two days.

Once installed and expanded to the uniform manufactured thickness batts offer a known r factor. For diy attic insulation you ve got two choices. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Because blown in insulation which is fiberglass generally can go on top of the existing insulation. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself. The negative thing about blown in insulation is that it makes the attic absolutely impassable when you re done and you need a lot more thickness of it because it has more air inside of it than you would if you used fiberglass bats.

Make sure you use an unfaced batt one without a paper or foil layer so the insulation does not trap moisture in the ceiling. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.