03-06-09, 07:26 AM | #33 |
Efficency nerd
Join Date: Dec 2008
Location: S. E. Michigan
Posts: 14
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The more I learn about fiberglass, the less I like it.
1. Formaldehyde is in it. None in cellulose. 2. It looses 20% of its R-value @ 0 deg F, and cellulose doesn't 3. Blown in fiberglass is the worst, because the r value per inch varies greatly with density cellulose does not. 4 Blown in fiberglass doesn't settle, so the ONLY way to know the density is to measure it!! 5. Fiberglass has a lower R per inch than cellulose. 6. Fiberglass cost's more than cellulose. |
Tags |
attic, insulation, seal |
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