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Heaving Slab

 
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Old 05-19-2008, 03:21 PM   #1
 
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Heaving Slab


I built an unheated barn two years ago, with 4 foot frost walls,and gravel under the slab. Come winter the slab heaves right infront of the door-its ugly. I would like to repair the concrete but have to stop the heaving first. I am thinking of digging down about a foot on the outside and laying some rigid insulation horizontally(this is only along the south wall). Whatdaya think?
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Old 05-19-2008, 03:36 PM   #2
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Re: Heaving Slab


Quote:
Originally Posted by sonny K View Post
I built an unheated barn two years ago, with 4 foot frost walls,and gravel under the slab. Come winter the slab heaves right infront of the door-its ugly. I would like to repair the concrete but have to stop the heaving first. I am thinking of digging down about a foot on the outside and laying some rigid insulation horizontally(this is only along the south wall). Whatdaya think?

I think "HVAC Picture Post"
is a weird place to post this.

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Old 05-19-2008, 03:38 PM   #3
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Re: Heaving Slab


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Originally Posted by neolitic View Post
I think "HVAC Picture Post"
is a weird place to post this.

why, cool air comes through the floor when the slab heaves, winter AC
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