Lower blocks over foundations exposed

Discussion in 'Building' started by akist, 30 Apr 2021.

  1. akist

    akist

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    We have started to build an extension on a sloping ground and it so happens that at some places the foundations are maybe 100mm below ground, the DPC being around 590mm above foundations (two courses of blocks and two courses of bricks). We plan to backfill those exposed areas later, but there is currently scaffolding in place that prevents access to a mini digger/bucket.

    My question is, does it really matter that some of these underground blocks are actually above ground for the time being? Does the structural integrity of the wall depend on soil being around those blocks?
     
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  3. Notch7

    Notch7

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    No it's not a problem.

    Are they normal hi7 concrete blocks or lightweight foundation blocks
     
  4. akist

    akist

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    Very heavy concrete blocks around 15kg or more each.
     
  5. KenGMac

    KenGMac

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    The general rule [which works well ] is that you can expose even the foundation SIDES only !!! do not undertake any excavations below the founds, or indeed anywhere near the bottom of the foundations

    Exposing masonry of whatever sort down to the foundations is not an issue.

    Ken.
     
  6. Notch7

    Notch7

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    Pretty much totally weather resistant, you have nothing to worry about.
     
  7. akist

    akist

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    Thanks guys. Somehow I was thinking that the soil on the sides provides lateral support.
     
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