Adding Bats Of Insulation To Attic

One for attic prep and the second to actually blow the insulation.

Adding bats of insulation to attic.

Install fiberglass batts over existing batt insulation. Lay the batts perpendicular to the joists so. The r factor of blown in fiberglass is usually 2 3 to 2 8 per inch of material. Because blown in insulation which is fiberglass generally can go on top of the existing insulation.

Measure how much insulation you already have. Both can be added to uninsulated attics or layered over existing material. Cotton batts though are cool because they re made of recycled blue jeans. Blowing attic insulation isn t hard but it s dusty sweaty work.

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. How much does attic insulation cost. To make insulating an attic easier grab a helper and set aside two days.

Loose fill or batt the common term for blanket insulation. This will lead to non uniform r values. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. The pros charge 1 500 to 2 000 to do a 1 200 sq ft.

Blanket insulation is available as batts or rolls and is the easiest diy insulation material. It s available in fiberglass mineral wool plastic fibers and natural fibers. For the best performance an insulation material needs to fill the whole space with no gaps voids compression or incompletely filled areas. How do i add insulation to existing attic insulation.

Make sure you use an unfaced batt one without a paper or foil layer so the insulation does not trap moisture in the ceiling. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Check the depth using a tape measure. For diy attic insulation you ve got two choices.

Put on goggles and gloves to protect yourself while handling. Once installed and expanded to the uniform manufactured thickness batts offer a known r factor. The problem with batts however is that they don t work well because they don t fill the space well. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.

Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. How to install attic insulation over existing insulation wear a long sleeve shirt gloves eye protection and a dust mask.