Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.
How to put extra insulation in attic.
How to install attic insulation over existing insulation you can install fiberglass batts yourself right over existing insulation but follow these precautions.
How to add extra insulation to an attic 1.
Fill every joist space completely and evenly with the insulation leaving attic vents uncovered.
Put on goggles and gloves to protect yourself while handling.
Blown in insulation in the attic seal attic bypasses.
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It needs to be unfaced.
Install fiberglass batts over existing batt insulation.
Wear a long sleeve shirt gloves eye protection and a dust mask.
You can add loose fill on top of fiberglass batts or blankets and vice versa.
How do i add insulation to existing attic insulation.
Follow the manufacturer s on package recommendation for r value based on your geographic.
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Level uneven spots with a rake.
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.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
Find a pre screened local home insulation contractor.
Lay a walkway.
Pull back the existing insulation and use expanding spray foam the fire blocking type to seal any.
Multiply length by width to determine the attic s area and the amount of.
If you use fiberglass over loose fill make sure the fiberglass batt has no paper or foil backing.
Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.
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.
When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.
Pull the existing insulation away from the roof.
Position the new vent chute so the.
Measure how much insulation you already have.