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submitted 1 week ago by [email protected] to c/[email protected]

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My house entire attic has plywood flooring over the joists/insulation.

It is nailed in and a pain in the ass to remove.

What is the best way to add additional insulation to the attic? I worry the plywood/insulation underneath has a bad r value.

Do I need to take up all the plywood and re insulate the batts? Should I just loose fill on top of the plywood?

Ideally I want to air seal it to but taking the plywood up will be a nightmare.

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[–] [email protected] 7 points 1 week ago* (last edited 1 week ago)

Get blown insulation. Cut a foot wide hole between each joist to insert the blower into.

You will need to feed the tube to the end and pull it out slowly while you blow. Blow more than you think you need.

Disclaimer: never done it before, good luck.