[deleted] t1_j1f17yn wrote on December 23, 2022 at 8:53 PM

Need to make structural fix first. Otherwise leveling it is pointless - it will be out of level again quickly. Add the beams necessary to support, wait, and see what happens after it re-settles (6-12 months, at least).

Otherwise, again, you'll just be re-leveling it later.

How thick is self-leveler? unless it is thin enough that it can be easily scraped, that's gonna be a pain in the ass. Most SLC is very fine aggregate, and doesn't come out in chunks. It will also be insanely dusty I would rent a demo hammer, zipwall off the area, and use a lot of vacuum collection + full face respirator (not just half-mask).

OllieBrooks OP t1_j1fgolo wrote on December 23, 2022 at 10:50 PM

Thank you. I will give the structural engineer another call in a few weeks, hopefully he hasn't retired yet. He built his house in the 70's and had a similar issue (mine was built in '77), but hadn't addressed it at the time.

Adding the beams may be a better permanent fix without having to disturb the flooring. The majority of the bowing is in the hallway (dead center above the garage) and part of the primary bedroom. If that is rectified somewhat with beams across the garage I'd be satisfied until I explore other options after seeing how it holds up after an extended time. Not looking for perfect just better than what it is right now.