Asked on Oct 16, 2017

How to fill GAP between house slab and sidewalk/yard??

2dogalShelly Woodin GillumLuc1838743
+6

Answered

We have an ever growing/deepening gap between our house slab and the side patio and also the yard. It basically is entirely around the entire house. Is there some sort of expanding spray foam that is just for this problem? We really don't want to hire a contractor and all that.
q how to fill gap between house slab and sidewalk yard
q how to fill gap between house slab and sidewalk yard
q how to fill gap between house slab and sidewalk yard
7 answers
  • Shoshana
    on Oct 17, 2017

    How about filling that up with some quikrete?
  • Sharon Guidry
    on Oct 17, 2017

    Flex Seal
  • 2dogal
    on Oct 17, 2017

    Yes, there is a foam that can jack the cement walk up to the house slab where it originally was. Have it professionally done. The walk is sinking as the soil is settling and it needs to be brought back up to its original slant so water does not continue to seep under the slab of your house and walk. I did that on a slab in my carport. You can't tell that it had broken and sunk. It is not very expensive compared to having cement poured under the slab to bring it up to where it should be.
    • Shelly Woodin Gillum
      on Oct 18, 2017

      The house slab and patio are actually level, but they are separating! The separating gap depth is what I was measuring. Other parts of the patio are being pushed up by the roots of 4 huge trees.
  • Jeanne Ambro
    on Oct 17, 2017

    If you don't want to hire someone to jack up your concrete I would try using a fill of pebbles and polymeric sand. the pebbles would mostly fill the gap and the polymeric sand would do the rest. This would allow for expansion and contraction with temperature changes and all you need do is add more of the sand, if necessary. Caveat: do this when everything is dry because polymeric sand hardens when water is added. I used it to fill the expansion joints in my driveway to block weeds from growing in the gaps.
  • Luc1838743
    on Oct 17, 2017

    WE used filler foam its at home depot you spray it in and it expands and fills in what spot you want, and you just scrape it off if it comes out to far
  • Shelly Woodin Gillum
    on Oct 18, 2017

    THANKS SO MUCH TO EACH OF YOU ABOVE!
  • 2dogal
    on Oct 19, 2017

    It is separating because the soil is shifting. Either due to settling or the tree roots. Just patching the separation will not fix your problem long term. It will only be a temporary solution.
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