Originally Posted By: jonofrey
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I did the final on a two phase inspection yesterday and observed a crack in the slab in the garage. This is a post tension, monolithic, slab on grade. I did not observe the crack during the pre-drywall inspection. The crack is about 1/16th of an inch at it’s widest point and ran nearly the entire width of the garage, stopping about 10 inches short of the perimeter grade beams on each side of the garage. Appeared as if someone may have tried to “float in the crack”. There was a scrape or gouge running perpendicular to the crack. Looked like teeth marks from a bobcat.
Buyer called the Super to discuss it with him. Super says gouge is from bobcat cleaning out garage. Says he did not tell anyone to try to repair the crack. Also says they won't do anything to try to repair it.
I called the foundation out as in need of repair and referred to a structural engineer familiar with methods for repairing cracks in concrete. Made mention of my observations and suggested stress crack rather than settlement crack. Also estimated the stacks of brick on the back wall as weighing about 1500 pounds.
My guess is that the crack was caused by a stress load and not differential settlement. No cracks in perimeter grade beams (the good news). Client asked me if I would back out of the deal if it were me. Oh no! Can't go there. Told him I would feel better about it if a structural engineer signed off on it.
We're NACHI. Get over it.