My wood frame Wisconsin home was built in 1894. Over the years I have been making improvements.
When I take down a plaster and lath wall, I’ve been putting in insulation and 4-6 mil plastic to tighten things up prior to drywall. I found that upstairs, where the roof meets the outer walls there exists an opening directly to the outside. I assume it’s designed that way to circulate air. Is it OK to be sealing that up like I have been doing? Should I be putting in ventilation panels in those spots up to the attic space?
In the upstairs areas I have insulated the angled part of the wall/roof, I clearly see a difference in the amount of frost on the roof shingles winter. Is that OK? I’m worried I’m trapping moisture. I’m worried the shingles could be effected negatively. If it’s ok to do so…I would be excited to know I can get myself in the attic to fill the spaces between the inner roof framing.
Some expert advise would be very appreciated. I’ve trying to research this online all these years without a satisfactory answer to these questions. I love my old home. I’d hate myself if I did something to damage it.
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