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Boundary Gutter Detail
last updated 25/07/16

The detail shown in this article provides a solution for a boundary wall gutter. The style of detail is quite common with many homes now being built on the boundary. The detail utilises an external eaves gutter and under flashing/Apron flashing to prevent water entering the building. There are many variations to flashings; the following details represent a suitable solution.

Please read the disclaimer relating to this article.

click to enlarge

click to enlarge

Boundary Wall Gutter Flashing
Download CAD versions of this flashing

Typical sizes for boundary gutter flashing

  • A = to suit the application (behind the eaves gutter)
  • B = to suit the application (outside of wall)
  • C = 50mm (typical)

The top of the flashing (B) should be installed with a fall (min. 3 degrees) to avoid water ponding.


click to enlarge

click to enlarge

Download CAD versions of this detail
Download PDF versions of this detail
Technical Resources
  1. Acceptability of Drainage from an upper surface to a lower metal surface
  2. Material Selection
  3. Search SteelSelect for pierce fix walling products
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Resource Acknowledgements
Source: SteelSelect - author Richard Michael

Publication Details: November 05

Authors Disclaimers:  The information and advice contained in this article is of a general nature only, and has not been prepared with your specific needs in mind. You should always obtain specialist advice to ensure that the materials, approach and techniques referred to in this article meet your specific requirements. SteelSelect makes no warranty as to the accuracy, completeness or reliability of any estimates, opinions or other information contained in this article, and to the maximum extent permitted by law, SteelSelect disclaims all liability and responsibility for any loss or damage, direct or indirect, which may be suffered by any person acting in reliance on anything contained in or omitted from this document.