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Waste pipe through flat fiberglass roof

Discussion in 'Roofing and Guttering' started by Skiny, 7 Oct 2016.

  1. Skiny

    Skiny

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    I need to bring a toilet waste pipe, down through a flat fiberglass roof.

    What's the best way to go about this, without causing leaks in the future?
     
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  3. KenGMac

    KenGMac

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    Skiny, good evening.

    Entirely dependent on distance to the main drain and the existing ventilation to the main drain have a look at a "Durgo Valve"

    Ken.
     
  4. Skiny

    Skiny

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    Thanks for the reply. My main concern is potential leaking of rainwater into the fiberglass roof, where the pipe comes through. I'll add a drawing to show what I mean.

    If I were to use a pipe flashing boot, how would I get a good seal between it and the roof?

    The red pipe in the drawing currently doesn't exist and there is no indoor plumbing within the main building.

    [​IMG]
     
  5. foxhole

    foxhole

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  6. freddiemercurystwin

    freddiemercurystwin

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    Any suitable roofer or other competent person will not be phased by this, it just needs to be done properly.
     
  7. vinn

    vinn

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    As above: ref its a simple task for a competent flat roofer.

    Perhaps it would help if you explained how come you intend to route a soil pipe this way?
    Perhaps there are better routing alternatives?

    As always, a few photos often simplify a solution?
     
  8. chappers

    chappers

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    Yep I would use a flat roof boot, I would cut away the fibre glass back to the roof deck fit the boot clamp it up and then glass over it again glassing up the boot and then slip a pipe collar down over the top and glue in place
     
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