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dgh1 01-01-2012 09:26 AM

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

joecaption 01-01-2012 09:28 AM

They really need to be blocked off at the top and at the bottom to cut off the air flow.

mae-ling 01-01-2012 02:58 PM

Cap it with whatever is easiest and best. I would consider poly and acoustical sealent.

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