Adding Bats Of Insulation To Attic

It s available in fiberglass mineral wool plastic fibers and natural fibers.

Adding bats of insulation to attic.

Because blown in insulation which is fiberglass generally can go on top of the existing insulation. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. This will lead to non uniform r values. One for attic prep and the second to actually blow the insulation.

Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Make sure you use an unfaced batt one without a paper or foil layer so the insulation does not trap moisture in the ceiling. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself. Cotton batts though are cool because they re made of recycled blue jeans.

Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. Measure how much insulation you already have. The problem with batts however is that they don t work well because they don t fill the space well. How do i add insulation to existing attic insulation.

How to install attic insulation over existing insulation wear a long sleeve shirt gloves eye protection and a dust mask. Put on goggles and gloves to protect yourself while handling. Both can be added to uninsulated attics or layered over existing material. Loose fill or batt the common term for blanket insulation.

Install fiberglass batts over existing batt insulation. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Blown in insulation thickness can vary in an attic space. Blowing attic insulation isn t hard but it s dusty sweaty work.

For diy attic insulation you ve got two choices. This type of insulation. The r factor of blown in fiberglass is usually 2 3 to 2 8 per inch of material. You can do it yourself for about 500.

Lay the batts perpendicular to the joists so. 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. Once installed and expanded to the uniform manufactured thickness batts offer a known r factor.

For the best performance an insulation material needs to fill the whole space with no gaps voids compression or incompletely filled areas. Check the depth using a tape measure.