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Old 08-05-2012, 10:04 PM   #1
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8" block foundation lean


I live in the mountains on a steep hill. the house was built in a time with little to no codes and shows it.. I am currently working to fix a pressing issue of my north wall of the foundation. the top of the wall is over 2 inches off what it should be. this has left the rim joist and some floor joist floating over thin air. What are my options for fixing this DIY, or do I need to call in the pros to handle this job.
While I was poking around taking measurements, this northern wall(the uphill side) is the only wall out of plumb. its worst in the middle, where the footing appears to have been poured to accommodation a support wall running 4 feet off the wall in a perpendicular fashion, which never got built.
If I built up the support and tied it into the existing block, would I then be able to pour concrete in order to straighten the wall?
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Old 08-05-2012, 10:47 PM   #2
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8" block foundation lean


Are there any cracks in the wall? - Crack patterns are a clue to understand why the wall moved at the top.

How high is the foundation wall from the top of the footing to the top of the wall?

To straighten the wall, you will have excavate the soil causing the pressure to straighten the wall. Pouring concrete alone will not straighten the wall.

Apparently, the joists run perpendicular to the block foundation wall. Are there any anchor bolts attaching the sill plate to the block wall? The joist and floor system should act as a diaphragm to provide a horizontal brace to stabilize the top of the wall.

The excavation, temporary support of the house and straightening of the block wall puts it out of being a DIY job.

Dick

Last edited by concretemasonry; 08-05-2012 at 10:55 PM.
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Old 08-06-2012, 09:59 AM   #3
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8" block foundation lean


Almost every time I see a foundation wall leaning most of the time it's because the footing was not wide enough for the soil conditions, or was pored over disturbed soil without the steps taken to compact it.
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