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  1. #1
    Join Date
    Jan 2012
    New Jersey

    Question Flat Tar Roof - drainage question

    Hello - our TV room was once a porch and then became an enclose room. The roof is is tar and is in good condition. There are two gutters that drain onto the roof of which I've added some downspout extensions to bring the water much closer to the gutter drain at the edge of the roof. I also have a skylight which I know I need to divert as much water from as possible.

    Is there an easy and safe way to have the downspout extensions attach to the flat roof? I wouldn't think you want to nail anything to the roof. Also, should I have the end of the downspout flow into a splash guard first and then let is flow into gutter?

    Thank you.


  2. #2
    Join Date
    Jul 2010

    Default Re: Flat Tar Roof - drainage question

    Why do you have to drain any water on this flat roof? can't you by pass it with new downspouts?

    If there is no way to divert the downspouts, don't nail into the roof. Attach the downspout with some tar to the roof.

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