To make insulating an attic easier grab a helper and set aside two days.
Adding bats of insulation to attic.
It s available in fiberglass mineral wool plastic fibers and natural fibers.
How to install attic insulation over existing insulation wear a long sleeve shirt gloves eye protection and a dust mask.
Blowing attic insulation isn t hard but it s dusty sweaty work.
This will lead to non uniform r values.
Because blown in insulation which is fiberglass generally can go on top of the existing 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.
You can do it yourself for about 500.
If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
This type of insulation.
Once installed and expanded to the uniform manufactured thickness batts offer a known r factor.
Loose fill or batt the common term for blanket insulation.
Both can be added to uninsulated attics or layered over existing material.
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.
Check the depth using a tape measure.
Cotton batts though are cool because they re made of recycled blue jeans.
Blanket insulation is available as batts or rolls and is the easiest diy insulation material.
One for attic prep and the second to actually blow the insulation.
For diy attic insulation you ve got two choices.
Put on goggles and gloves to protect yourself while handling.
Blown in insulation thickness can vary in an attic space.
How do i add insulation to existing attic insulation.
Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.
For the best performance an insulation material needs to fill the whole space with no gaps voids compression or incompletely filled areas.
The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
How much does attic insulation cost.
The r factor of blown in fiberglass is usually 2 3 to 2 8 per inch of material.
Make sure you use an unfaced batt one without a paper or foil layer so the insulation does not trap moisture in the ceiling.
Lay the batts perpendicular to the joists so.