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Structural Inspections Contains discussions about the structural portion of a home inspection. This includes foundations, framing, etc.

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  #1  
Old 1/19/13, 7:53 PM
Kenneth Blair Kenneth Blair is offline
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Default Block Foundation Dry Stack

This block foundation wall was a dry stack which did not include the use of mortar to bond the block. The cells of the block were poured with concrete in approximately every fourth block. No failure of the foundation wall or movement was noted. The wall had 5 courses of block on top of a concrete basement foundation wall. So I was not concerned that much with settlement. I was more concerned with lateral movement from soil pressure and moisture intrusion. Just haven't seen this before and wondering how much of a deal you guys would make of it.
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  #2  
Old 1/20/13, 7:13 PM
Kenneth Blair Kenneth Blair is offline
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Default Re: Block Foundation Dry Stack

No responses??
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Old 1/20/13, 8:00 PM
Juan C. Jimenez Juan C. Jimenez is offline
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Default Re: Block Foundation Dry Stack

Hey Kenneth. A couple of weeks ago I spent a few hours reading about dry stack foundations. If you google it, you will find plenty o information. More than you will find here apparently



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  #4  
Old 1/20/13, 8:50 PM
Kenneth Blair Kenneth Blair is offline
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Default Re: Block Foundation Dry Stack

Thanks Juan
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  #5  
Old 1/20/13, 8:57 PM
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Jeffrey R. Pope, CMI Jeffrey R. Pope, CMI is offline
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Default Re: Block Foundation Dry Stack

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Originally Posted by jjimenez View Post
Hey Kenneth. A couple of weeks ago I spent a few hours reading about dry stack foundations. If you google it, you will find plenty o information. More than you will find here apparently
I just have a hard time understanding this type of "construction." I can't think of any circumstance where I would consider a "dry-stack" to be acceptable for the foundation of a structure.

Maybe I've just been in CA for too long...



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  #6  
Old 1/20/13, 9:38 PM
Juan C. Jimenez Juan C. Jimenez is offline
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Default Re: Block Foundation Dry Stack

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Originally Posted by jpope View Post
I just have a hard time understanding this type of "construction." I can't think of any circumstance where I would consider a "dry-stack" to be acceptable for the foundation of a structure.

Maybe I've just been in CA for too long...
Yeah IDK. Seems lazy to me. I looked it up when someone posted a photo here that may have been a dry stack. Apparently some people think it works.



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  #7  
Old 1/21/13, 8:43 PM
Kenneth Blair Kenneth Blair is offline
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Default Re: Block Foundation Dry Stack

I'm with you Jeff. I am having a hard time accepting this one too. I pointed it out to the buyer and told them it was unusual and what I thought the disadvantages were. I suggested that they do their own research on it. You could actually see outside light between the blocks. I never thought properly laid block walls were that difficult.
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Old 1/21/13, 8:53 PM
Juan C. Jimenez Juan C. Jimenez is offline
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Default Re: Block Foundation Dry Stack

You shouldn't be able to see light from what I read. The cells should be filled and the both sides should have a surface bond. Keep us updated.



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  #9  
Old 1/21/13, 11:36 PM
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Jeffrey R. Pope, CMI Jeffrey R. Pope, CMI is offline
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Default Re: Block Foundation Dry Stack

Quote:
Originally Posted by kblair1 View Post
I'm with you Jeff. I am having a hard time accepting this one too. I pointed it out to the buyer and told them it was unusual and what I thought the disadvantages were. I suggested that they do their own research on it. You could actually see outside light between the blocks. I never thought properly laid block walls were that difficult.
It's much easier for me in my state. This type of "foundation" (if you can call it that) would be referenced as a major structural defect. You wouldn't be able to get insurance on a structure built like that...



IF YOUR INSPECTOR IS NOT USING THERMAL IMAGING, YOU'RE NOT GETTING THE WHOLE PICTURE
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Old 1/22/13, 3:31 AM
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john bubber john bubber is offline
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Default Re: Block Foundation Dry Stack

Can remember only 3 of those types we've done/waterproofed.

All had gaps/openings between the top-of-the-poured wall and first course of blocks. Don't have pic's of those sry.
Here's kind-of what i mean.....

http://picasaweb.google.com/10104903...50623989661666
Here,gaps at-along bottom of poured wall and footing, see scrapers.Some water entered here.
Could also stick a scraper (water was entering) those 3 between top of poured wall and blocks. These few were NOT deeper than 5 1/2' and no wall longer than 30' (bungalow's)so maybe that is why we didn't see any bowing at,that-point-in-time.
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