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Leaking gable end to flat roof solution help?

  • 07-10-2011 10:32pm
    #1
    Deliverance
    Registered Users, Registered Users 2 Posts: 1,674 ✭✭✭


    I am working on a roof with a leak in the morning. I inspected the flat roof and it seems sound. The leak seems to be occuring into the house on a par directly by the connection between the gable and the flat roof of an extension built onto the house.

    However the leak is impossible to determine to the eye as it is so minute that it could be occuring over a 4-5metre linear area between the gable and the flat roof. It only occurs when it rains so water pipes is not an issue.

    I reckon that the leak is due to deterioration of the current proofing which seems to be an applied hardened substance which has been applied to the gable and the extension which has deteriorated over time.

    Would I be right in applying a strategy that would include a termination strip onto the gable wall and then providing a curtain of proofing across the area i.e. the 4-5metre area?

    This is what I think I need to do with this problem as a fix. Would I be right in thinking this way if so is there a protocol in doing this and what materials would I need to complete this job as such?

    I know that a perfect fix should be a strip of lead cut into the wall the whole way across and properly sealed on the flat roof but I wonder if this is an overkill? Plus I know from experience cutting into the wall and applying a lead strip is expensive and incredibly hard work, I am not looking forward to cutting into hardended concrete with a cutter again. It took me half a day previously to cut into a previous wall in this house to apply a lead strip. It is an old enough house and some of the cutting work was intensive to say the least due to extreme hard areas of the concrete. Somehow in all this I think I have answered my own question;) I need to get the cutter out again?

    Any advice appreciated on this.


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