Insulating and air sealing Balloon framed wall no sheathing
I have a balloon framed home built in 1910 and true 2×4 studs. At some point there were cement asbestos shingles added and insulation blown into part of the house, the first floor mainly consisted of brick in the wall cavities.
I’ve since removed all brick and asbestos but I’m left with exterior cladding with holes and some damaged cladding The house also needs to be racked to correct a lean of about 4″. which I’m hoping some structural work will correct.
I want to air seal and insulate but not sure the best method to go about this without stripping off the cladding entirely?
My thoughts are that I can possibly leave the cladding in place and replace only the most damaged clap boards. Then add fire stops/blocking etc
My preferred insulation is air-krete which has an R value of 7/inch so R28 for walls.
So without going to the expense of removing all cladding and adding a layer of sheathing then new cladding, How can I air seal the entire home? Will the airkrete be sufficient?
Is a house wrap required? Better to strip off old cladding? add sheathing? exterior insulation?
what are best practices in this situation? without breaking the bank
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