Insulating Balloon-Framed Attics
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
They really need to be blocked off at the top and at the bottom to cut off the air flow.
Cap it with whatever is easiest and best. I would consider poly and acoustical sealent.
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