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Cellulose Settling

3870 Views 1 Reply 2 Participants Last post by  tommytwo
Does Cellulose insulation settle over time, if so how much?

Does settling cause it to lose R-value?

Do you have to blow in extra insulation to make up for the settling?
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Yes it does settle. But the r value and coverage listed on the package are at the settled density. If you use the number of bags per square foot the package says, you will actually have "extra" r-value for a couple of years until it reaches it's settled density.
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