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Building internal breeze block wall & dpc question

Discussion in 'Building' started by MrSixty7, 3 Oct 2020.

  1. MrSixty7

    MrSixty7

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    Hi all. I'm new to the forum so pleased to be a new part of the community.

    I am going to have a go at building a breeze block wall to split my garage in two (drum room / workshop).

    It's a brick built garage with an exiting concrete floor. I will be taking the wall direct up from the floor and using some kind of tie to secure the new wall to the existing brick wall.

    I'm not sure if I need to put a dpc in there somewhere. If I do, do I start with a dpc and build off that or do I start with a couple of courses straight off the concrete and then add a dpc in?

    Many thanks in advance for your input.

    MrSixty7
     
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  3. 23vc

    23vc

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    What’s the floor makeup currently? Will it take the weight of the blocks, likely if they’re aerated but less likely if they’re conc aggregate.
    Assuming the floor is currently dry and has a DPM under it, no need for a DPC in the wall.
     
  4. how big is the wall and how high?
    i’d install a dpc at ground level regardless.
     
  5. ^woody^

    ^woody^

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    If you have a DPC in the external walls, you may want to replicate that in the internal wall.

    And you may want to consider if the concrete slab can actually support a block wall without it cracking.
     
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  7. cdbe

    cdbe

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    Consider a timber stud wall, probably a lot easier/cheaper/less messy to DIY.
     
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  8. MrSixty7

    MrSixty7

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    I am planning to use standard (cinder?) single breeze blocks, They have no weight to support. It's basically a dividing wall to separate drum studio from tool/work area.

    It has a concrete floor and I can see the dpm in the perimeter walls at 1 brick above floor level (it's double skinned brick). I guess it can't do any harm to include a dpc, whether it needs one or not.

    As per cbde's comment above, I'm also now considering a stud wall. I could use acoustic plasterboard and line the cavity side of the plasterboard with carpet and egg boxes to dampen sound further I guess.

    MrSixty7
     
  9. 23vc

    23vc

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    They need to support their own weight, it’s not just about what’s above it. I’ve seen block work walls not carrying any additional load cause slabs to sink and cause big problems
     
  10. johnny2007

    johnny2007

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    Stud wall.
     
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