That's exactly what I was trying to say in my post MIke. So I saw no need for the temp. wall inside the kitchen that he had suggested doing since the ceiling will be lifted slighty and the floors going to be supported from below with a temperary wall and not being lifted.
Sorry,miss read your original post----
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I am working on a very similar project. just getting started. I'm not a pro at foundations or house raising, but know about some of the myriad of complications that can result when jacking/lifting. I read the posts and I think some people are forgetting the strong nail connections of roofing to walls, and walls to walls-where walls meet etc. which could become a big issue cracking exterior/weakening structure when raising areas.
My house I just bought is about 110 yrs and has no sill plates, instead just has nailed floors joists to the rim joist which all sits on limestone dry stack (sucks). The house has never had gutters or proper grading so water/moisture has destoyed most of the rim joists, and rotted out portions of floor joists where they meet rim joist, resulting in unlevel floors.
I am ripping out floor/subfloor and sistering up new joists as needed to a new treated beam/rim joist where the rim joist rot is. Then I am demo-ing interior walls and sistering up treated 2x4s in the walls as needed. I decided not to lift the house. Instead I am going to use flooring and leveler products to acheive a mostly level floor and installing gutters/and grading to make sure no more moisture / rot. Then resupporting floor joists from crawl space area as needed in order to prevent further sagging around outside walls.
It would be nice to lift it and reframe/resupport the rotten sill/rim-J areas, but that a pricey/risky/dangerous task that I've decided not to take on.
if you have advice for me let me know also!
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