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Old 04-26-11, 08:38 PM   #17
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Originally Posted by skyl4rk View Post
Cellulose will settle over time, leave access panels at the top of the ceiling to add cellulose insulation every year until it stops settling.
If you dense pack it properly this will never happen. The 3.5 lbs./ft. of proper dense packing is so far beyond settled density that settling is not even remotely possible. If you leave access to the cavity you will invariable also leave air leaks that will cost you a ton in convective heat loss.
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