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Check your attic
insulation
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Stick your head into the attic so that you can see above the insulation.
July 2010
If you see a lot of lumber, you don’t have enough insulation. What you should see is a continuous sea of loose-fill insulation with no mountains or valleys—and no joists or lumber peeking out over the top of it.
You also shouldn’t be able to see any drywall. That’s your ceiling, and it should be covered with insulation.
Even properly installed insulation can become ineffective if it falls out of place or wears thin. Check yours every now and then to make sure it’s doing its job.
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