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Is this DPC level correct for rendering ?

Discussion in 'Building' started by platforminc, 14 May 2021.

  1. platforminc

    platforminc

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    Hi All.

    Looking at the picture below, I am concerned that that the builder has placed the angle beads at the wrong level. To provide some context the higher level where the class 2 engineer bricks stops is the actual DPC level inside the house, however I have decided to have the porch slightly lowered so I don't have to have a big step going into the property.

    My concern is that placing the beads at the current level might introduce rising damp, although the render is a thin coat system where a cement based basecoat is used, and then a silicone render on top of it.

    WhatsApp Image 2021-05-14 at 19.44.33.jpeg
     
  2. Notch7

    Notch7

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    render should finish with a bell cast bead at DPC level....or at least thats best practice, certainly for conventional render

    bridging the DPC is not good practice
     
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  4. ^woody^

    ^woody^

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    How are you dealing with damp rising on the inside between the floor level and the higher DPC?
     
  5. platforminc

    platforminc

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    Thought one could have a membrane wrapped all around the edges for precisely that reason, and then the DPM as well. The proposed floor is concrete, so i would have thought wrap a 450mm DPC all around the edges + DPM, 100mm celotex insulation and then concrete ontop of that.
     
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