Follow the manufacturer s on package recommendation for r value based on your geographic.
Add extra insulation to attic.
Inspect the exterior walls by using an electrical outlet.
Add the right kind of insulation.
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The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
The chart included below shows you the approximate thickness of each type of insulation you should ideally have in the attic.
Check the depth using a tape measure.
Lay a walkway.
Multiply length by width to determine the attic s area and the amount of.
Turn off the power to the outlet.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
How to add extra insulation to an attic 1.
You should be able to see if there is insulation in the wall.
To determine if you need more insulation measure what s in place with a ruler or tape.
Install fiberglass batts over existing batt insulation.
Pull out a small amount of insulation if needed to help.
How do i add insulation to existing attic insulation.
Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.
Plan to pull up the flooring and layer new insulation on top of the old.
Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.
When you do the measuring make sure you have plenty of light to work by and work on a cool day.
If you already have six inches of insulation and you want to get to the recommended r 38 add an attic blanket it s also made of fiberglass but it has no paper backing.
Because the simplest and cheapest way to insulate an attic is to add material to the floor.
Blown in attic and wall insulation is a more effective way to add insulation to older homes.
But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates.
When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.
If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
Measure how much insulation you already have.
Put on goggles and gloves to protect yourself while handling.
Keep adding layers until you get to r 38.
Remove the outlet cover and shine a flashlight into the crack around the outlet box.
Measure the length and width of the attic.
How much does attic insulation cost.
To install it just lay it across the joists.