Fiberglass bats ontop of blown cellulose

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Old 10-18-02, 12:42 PM
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Fiberglass bats ontop of blown cellulose

My housing inspector says I need more insulation in my attic. There is already cellulose in there but apparantly not enough. I was planning to just lay fiberglass bats over the top of the cellulose. Does anybody think that it would be a problem?
 
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Old 10-18-02, 01:02 PM
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Cool

Nope.
Just use the kind without a vapor barrier side.
 
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Old 10-19-02, 04:13 AM
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Ten minutes of hauling & crawling around in your attic you will wonder why you didn't hire a jobber to blow in additional cellulose. You escape the one unpleasant task and the attic will be better insulated
 
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Old 10-20-02, 09:05 AM
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Greetings,

Putting FG or more cellulose over the existing will probably increase the a/c bills and do little or nothing for winter bills.

The most efficient methoid is to install a radiant barrier over the existing insulation. You can save up to 30% on the a/c and up to 12% on heating.

If your inspector goes by BOCA opr similar remind him that FG, cellulose and foam have not been approved for residential thermal values. At least one RB product has been. And that FG is listed as possible carcenogenic, plus the mold and other serious problems.

For more RB info enter radiant barriers

You might also want to ck koolcoat.com for paint additives that can save you even more energy.

Thank you for considering my opinion.
 
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