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What flashing on dormer

Discussion in 'Roofing and Guttering' started by xdrive, 1 Nov 2019.

  1. xdrive

    xdrive

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    I'm trying to achieve a dormer like this. What flashing is used?

    Cheers

    IMG_20191101_171426.jpg
     
  2. Makie

    Makie

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    Lead
     
  3. xdrive

    xdrive

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    Is it the flashband type?

    What size is used for sides and front?

    6inch side and 9 or 12 inch front?

    Cheers
     
    Last edited: 1 Nov 2019
  4. noseall

    noseall

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    There is no hard and fast rule only that you have the splash zone covered (vertically) and that you weather the heads of the tiles horizontally. Standard exposed verticals require a 150mm lead upstand, although the peculiarity of a dormer means that side abutting soakers can be weathered by the finishing material. Conc' interlocking tiles would need the standard head-lap weathering i.e. 75mm - 100mm (horizontally) down the tile or 100mm for plains.
     
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  5. Ian H

    Ian H

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    They look a bit small on mine :confused:

    3D6D1B9D-8F26-45EE-A67E-674191EDC636.jpeg

    F848CC58-A8E0-43A2-81E2-3BE0E3405149.jpeg
     
  6. 23vc

    23vc

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    I’d say the raised profile is covered, and the cladding hides some of it so its good
     
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  7. noseall

    noseall

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    Good point. As with any profiled tile, it is important that the lead travels across enough of the tile so that the water is kept out by the profile and the cover.
     
  8. xdrive

    xdrive

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    What's recommended to use code3, 4 or code 5 lead for dormer
     
  9. Leofric

    Leofric

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    Code 4 lead flashings.
     
  10. datarebal

    datarebal

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    3 and 4 for soakers 4 and 5 flashing
     
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