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how much cellulose insulation do I need for 1800 sqft and an R value of 49?

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Posted 2013-12-13T20:06:03+0000  by bertil bertil
 

Assuming you're starting at zero insulation or want to add R49 to your existing insulation - 145 to 150 bags.

Posted 2013-12-13T20:18:11+0000  by Adam444
 
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