Check the depth using a tape measure.
How to put extra insulation in attic.
Measure the length and width of the attic.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
Pull the existing insulation away from the roof.
With a helper to load the blower with insulation as needed start at the perimeter of the attic and work toward the attic access door.
Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.
Fill every joist space completely and evenly with the insulation leaving attic vents uncovered.
Follow the manufacturer s on package recommendation for r value based on your geographic.
When you re ready to install new insulation check that your platforms are insulated and if they re not fill them from the top with blown in insulation or remove the boards and lay batting underneath.
How to install attic insulation over existing insulation you can install fiberglass batts yourself right over existing insulation but follow these precautions.
Install fiberglass batts over existing batt insulation.
It needs to be unfaced.
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Level uneven spots with a rake.
If you use fiberglass over loose fill make sure the fiberglass batt has no paper or foil backing.
When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.
Position the new vent chute so the.
Wear a long sleeve shirt gloves eye protection and a dust mask.
Install or repair vent chutes.
Measure how much insulation you already have.
Find a pre screened local home insulation contractor.
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Blown in insulation in the attic seal attic bypasses.
Put on goggles and gloves to protect yourself while handling.
Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.
Lay a walkway.
Multiply length by width to determine the attic s area and the amount of.
How to add extra insulation to an attic 1.