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Posted by JT on November 6th, 1997 06:31 PM
In reply to Attic insulation by Bob on November 6th, 1997 03:26 PM [Go to top of thread]

Bob, sounds like cellulose (the good stuff). Blown
is best since it fits more tightly in all the cracks
and crevices. Cellulose is best when tightly packed
because it then forms an air seal.

You don't want a vapor barrier, but
you do want to air seal. Caulk, foam, or bag any
penetrations, eg. balloond framming bays, plumbing
and electrical entrances, around chimneys, light
fixtures (be careful of recessed fixtures thought),
and look carfully at things like dropped ceiling
framing. No amount of insulation will help as long
as air can pass through your ceiling/attic boundry.

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