I know the fix is pulling up all the boards and sistering up new joists. But I'm wondering if I can be arsed if it's not a sign of the house sinking into the mud (see previous comment about the floors below not having the issue anymore). Problem is towards the external wall. Low spots are maybe half an inch out over 4m span of room.
From the northeast corner of our kitchen to the southwest corner of the office our house drops about 6.5”, we’re not about to do anything about it after 30 years.
We did other stuff like exterior stabilization and sealing of the foundation (we have a basement) and it hasn’t shifted.
I know the fix is pulling up all the boards and sistering up new joists. But I'm wondering if I can be arsed if it's not a sign of the house sinking into the mud (see previous comment about the floors below not having the issue anymore). Problem is towards the external wall. Low spots are maybe half an inch out over 4m span of room.