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DMP edge detail

Discussion in 'Building' started by PoorRich, 4 May 2021.

  1. PoorRich

    PoorRich

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    Hi everyone.

    I am about to pour a 100mm 30N conc slab as a base for a metal shed. The slab will be poured on a 1000 guage DPM. Ideally I want to waterproof the edge of the slab. The tin cladding may overlap down over the slab in places but this may not be possible along the boundary.
    As you know, folding and turning DPM is awkward around external corners and I am concerned, if the vertical DPM is left exposed , how well it will last / deteriorate. DETAIL 1

    An alternative I need your advice on is to rubber paint the edge of the slab first, turn DPM up and stick it to the wet paint, then finally another layer of rubber paint from the top of the slab down over the outside of the DPM, almost like a flashing detail. Again, how will the rubber last exposed? DETAIL 2

    If possible, any suggestions on the paint to use, will it adhere to concrete and DPM?

    Or even a better detail to consider?

    Your advice appreciated in advance.
     

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  3. cdbe

    cdbe

    Joined:
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    Just use a perimeter edging (concrete paving slab on edge) to contain slab and DPM - you can usually pick some up free on Freecycle or Facebook.
     
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