Heaving Slab

sonny K

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?

neolitic

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

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(Sorry....it seems there really are dumb questions)

genecarp

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

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