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Waterproofing a rooflight to a brick upstand against a wall

Discussion in 'General DIY' started by dodgem, 15 Oct 2021.

  1. dodgem

    dodgem

    Joined:
    27 Oct 2006
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    Location:
    London
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    Hi all,

    I have a lightwell in my basement, and I've ordered a glass access hatch over it, with trickle vents.

    I'm going to build a brick upstand about 150mm/2 bricks high to 3 sides of the lightwell.

    The 3rd side is against a wall, so I will fix a batten on here so the rooflight kerb has something to fix to on all sides.

    Can anyone recommend best way of waterproofing between the brick/timber upstand and the rooflight kerb?

    I was think some membrane I've the timber dressed up the wall, overlapping a membrane to the top of the brick kerb.

    Any advice much appreciated
     
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  3. foxhole

    foxhole

    Joined:
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    Timber likely to rot quickly ,use brick or similar all round.
     
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