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Flat Roof Bay Window Lead Flashing - Leaking

Discussion in 'Roofing and Guttering' started by Eddman, 7 Jun 2017.

  1. Eddman

    Eddman

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    Last night in the terrible wind and rain we had i developed some leaks in my bay window. I#t has a flat roof and is flashed up into the wall beneath my bedroom window. The roof itself doesn't loo too bad and i wonder whether driven rain is the cause of the leaks inside...it seems to only leak with rain AND windy conditions (ie - we have had heavy rain in the past but on a relatively still day and no leaks). I attach photos...if it is driven rain getting in - i am imagining it is under the lead - is there a way to seal the lead to the flat roof?

    thanks for any help that comes my way
     

    Attached Files:

  2. catlad

    catlad

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    Don't try and seal the lead to the felt.
    Your lead flashing is coming away from the wall. Almost certainly were
    the water is getting in.
     
  3. vinn

    vinn

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    As above.

    But there may be more to it than your pics show?
    Why not post a couple of pics showing the whole flat roof and the stone abutment?
     
  4. chappers

    chappers

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    are those stone sills and mullions in the picture or maybe a stone banding course, as they don't look in great condition. Any chance of a wider shot
     
  5. datarebal

    datarebal

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    Agree,It does look like the stone work needs some attention.
    And the flashing needs refitting from what i can see.
     
  6. Eddman

    Eddman

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    it is a stone window cill. It is hard to get a full shot as it is quite high and i regretably don't have a long ladder!!!
     
  7. Eddman

    Eddman

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    now i look again at my photos, there does seem to be quite a gap between the stones - would this be filled with mortar? i am a novice at external work! i was going to get some mortar, scrape all the existing mortar that is currently holding the lead in place, then replace with new mortar - now i am thinking i will do the same between stone sections - does this sound like a good plan?
     
  8. vinn

    vinn

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    If you can work on the area in the pic by hanging out of the window, how come you cant take a pic?
    Tied in with a line and guarded by an assistant, why not go on the flat roof through the window?
    The lead flashing across the back of the bay and the pointing needs to be removed, and a pic taken showing whats happening behind the flashing?
     
  9. DIYnot Local

    DIYnot Local

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