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Gutter installation question

Discussion in 'Roofing and Guttering' started by BuggBairn, 7 Jun 2019.

  1. BuggBairn

    BuggBairn

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    I have a full length flat roof dormer at the back of my property that is about 16m long. The gutter had outlets at both ends of the dormer.

    I'm replacing the existing plastic guttering with deepflow plastic.

    I'm after some advice on best practice to achieve a slope towards each outlet please.
     
  2. Ian H

    Ian H

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    A string line to line up your brackets pulled up slightly in the centre.
     
  3. BuggBairn

    BuggBairn

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    A symmetrical line that peaks ever so slightly in the exact center ? Achieve this by deliberately having a union dead center?

    Is this in line with your suggestion?
     
  4. noseall

    noseall

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    I would do the opposite and avoid a union in the centre of the peak.
     
  5. BuggBairn

    BuggBairn

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    N
    And just use the ability of the plastic gutter to flex that center section ?
     
  6. noseall

    noseall

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    Correct. Hold a 5m length of gutter in the centre and it will flex naturally and more than is required to meet falls. Much better than stressing the rubbers and dog-legging in the middle via a union.
     
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