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04-07-2008, 05:32 PM
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Member
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Join Date: Jun 2007
Location: Shasta Lake, California
Posts: 75
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Horizontal crack in foundation
This is a 4 year old home, This crack is present at the rear of the structure. Any thoughts as to what might be the cause of this crack? I am not sure if it is a reportable condition.
thanks, Ron
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Ron Bishop
Shasta Lake, Ca.
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04-07-2008, 05:58 PM
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Member
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Join Date: May 2007
Location: NC
Posts: 478
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Re: Horizontal crack in foundation
Is this a slab house?
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04-07-2008, 06:00 PM
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Member
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Join Date: Jun 2007
Location: Shasta Lake, California
Posts: 75
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Re: Horizontal crack in foundation
yes this is a slab foundation
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Ron Bishop
Shasta Lake, Ca.
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04-07-2008, 06:17 PM
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Join Date: Mar 2007
Location: Dallas, Texas
Posts: 1,591
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Re: Horizontal crack in foundation
I can't tell much from the one photo but the first though that comes to mind is re-bar that is too close to exterior surface and is corroding and expanding.
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Jim Luttrall
Mr. Inspector.net, Inc.
Allen, Texas 75002
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04-08-2008, 05:43 AM
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Join Date: Mar 2008
Location: Healdsburg Ca
Posts: 741
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Re: Horizontal crack in foundation
That looks like water expansion under the slab. if it is a one peace slab and footing? then you have some Soil Hydraulic Conditions from water under the slab.
Look for some cracks on the interior floors. You may want to pull back any flooring or carpeting and check the slab. I did not see any rust from the cracks. but dont rule out rebar problems.
Best
Ron
Excellence Exterminating and Thermal Imaging |
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04-08-2008, 09:49 AM
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Join Date: Mar 2007
Location: San Mateo, CA
Posts: 1,114
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Re: Horizontal crack in foundation
My shot:
We used to go to and by Mt. Shasta at least twice a year (trout fishing in the McCloud River) and there was always plenty of earthquake activity in those northern parts of California. Horizontal cracking in concrete foundations in such seismically active areas usually indicated horizontal movement whereas vertical cracking was usually the result of up-down movement from expansive soils, over-loading, and fill settlement to name a few.
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04-08-2008, 05:37 PM
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Join Date: Feb 2008
Location: Chicago IL
Posts: 448
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Re: Horizontal crack in foundation
I see two cracks. The other one being above the first, it looks like it was patched at some point. Looks like a recurring problem to me.
Is that a sidewalk or driveway next to the slab?
Other than that I don't know squat about california soil conditions. Good luck.
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Accurate Inspections & Consulting, Inc.
773/844-4AIC
Markus Keller
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04-08-2008, 06:28 PM
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Member
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Join Date: Jun 2007
Location: Shasta Lake, California
Posts: 75
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Re: Horizontal crack in foundation
It's a back porch next to the slab, and 1 coat stucco above it.
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Ron Bishop
Shasta Lake, Ca.
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04-09-2008, 06:48 AM
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Join Date: Jun 2007
Location: Shasta Lake, California
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Re: Horizontal crack in foundation
Would this be a reportable condition?
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Ron Bishop
Shasta Lake, Ca.
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04-09-2008, 10:28 AM
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Join Date: Mar 2008
Location: Healdsburg Ca
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Re: Horizontal crack in foundation
You bet. If only a note: in your report.
Best
Ron
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04-09-2008, 04:34 PM
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Member
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Join Date: Jun 2007
Location: Shasta Lake, California
Posts: 75
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Re: Horizontal crack in foundation
I took a pic of it and put it in the report, with a recommendation to monitor.
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Ron Bishop
Shasta Lake, Ca.
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04-11-2008, 08:20 PM
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Join Date: May 2007
Location: NC
Posts: 478
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Re: Horizontal crack in foundation
This would be a SE/repair item on my report.
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