Is this normal? Gap between slab and Brickwork

Discussion in 'Development' started by M M, 5th Feb, 2020.

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  1. M M

    M M Member

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    Hi All,

    Have built before but have not noticed this before, could be perfectly normal or could be as it appears poorly done.

    Please note the gaps that are obvious around the slab and the walls.

    If anyone could provide some guidance that would be most appreciated.
     

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  2. Westminster

    Westminster Tigress at Tiger Developments Business Member

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    It's quite "normal" in that I've seen this quite often in Perth. If this was a slab for a timber framed house it would NEVER be that bad as they put the frames on top of the slab so the edges are beautiful and in the very correct spot.
    Most likely the builder will fill up the gap with some extra concrete
    If you are concerned (and I would be in general with most builders in Perth) it doesn't hurt to get a few building inspections (2 or 3) for peace of mind and for some back up if you want to fight on quality/standards.
     
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  3. M M

    M M Member

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    Thanks Westminster. Appreciate the response mate.
     
  4. MArchi

    MArchi New Member

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    Shouldn't be obvious. The brickwork should sits nicely/comfortably on the slab. Speaking from an architect's perspective, I would say it's a poor workmanship.
     
  5. Scott No Mates

    Scott No Mates Well-Known Member

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    Add to that, the walls haven't been cement rendered, skirtings and floor coverings will cover the rest.
     
  6. Perthguy

    Perthguy Well-Known Member

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    My build in Perth looked similar, but not as bad, after the cement render and whiteset went on. The builder slopped in some concrete to fill up the holes.

    Mine was a no skirts build so they couldn't rely on that to hide sloppy workmanship
     
  7. Scott No Mates

    Scott No Mates Well-Known Member

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    They must do things differently in WA. When I did strip footings with infill slabs, the slab would go across the brickwork, these ones look as if the slab is stopped short and the brickwork is laid in the gap - too much allowance for brickwork.
     
  8. Perthguy

    Perthguy Well-Known Member

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    These are for double brick walls, with an inner skin and an outer skin.

    The way it is supposed to be done is:

    pour the slab and the footings for the outer skin

    lay the inner skin on the edge of the slab

    lay the outer skin on the footings

    neat edges where the bricks meet the slab

    The way it's actually done

    pour the slab wherever, near enough.

    dribble in some footings

    the edge of the slab where the inner skin is supposed to go is missing or wonky so the bricklayer has to do their best to build up the missing slab with mortar

    This leaves large holes between the inner skin and the concrete pad. I could see the ground through some of the holes at my build. The builder subsequently mixes up a loose concrete mix and dribbles the concrete into the holes. Admittedly, under a tiled floor no one is going to notice. I just find it sloppy. I can tell you the bricky at my build was very unimpressed with the state of the slab.
     
  9. Westminster

    Westminster Tigress at Tiger Developments Business Member

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    I did forget to mention one thing. The footing that goes around and under the slab supports the outer brick wall. If they have short poured the slab then the footing may be as well so the outer wall won't be sitting on the footing. Generally footings are quite wide and not an issue BUT it doesn't hurt to check (or get your inspector) to make sure the outer brick wall is sitting on the true footings.

    If the footings is not wide enough they will have to pour some more and properly tie it into the original footings. Dodgy types will get the brickie to just throw some cement onto the ground and hope for the best
     
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