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Old 01-01-2012, 09:26 AM   #1
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Insulating Balloon-Framed Attics

Hi All
I have a century home (1865) triple-brick, balloon framed construction.
There is a mixture of fiberglass batt and blown-in cellulose (8" total) attic insulation. I just installed rafter baffles in preparation for more blown-in (up to R50). While in the attic I noticed the balloon-framed interior walls- Should I cap the walls with wood, cover well with batts or insulate from the inside with Roxul when I replace the deteriorated lathe & plaster walls this spring?
There is only one spot on the roof without snow- right above one of the interior walls.
thanks in advance for your advice


Last edited by dgh1; 01-01-2012 at 09:51 AM. Reason: typo
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Old 01-01-2012, 09:28 AM   #2
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They really need to be blocked off at the top and at the bottom to cut off the air flow.


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Old 01-01-2012, 02:58 PM   #3
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Cap it with whatever is easiest and best. I would consider poly and acoustical sealent.
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