Flashing a timber-framed chimney
Chimneys obstruct rainwater flowing off a roof and need to be well detailed and flashed to prevent problems.
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Gable dormer junctions
Dormer roof junctions with profiled metal roofing always present a tricky area of flashing and their detailing is often conveniently overlooked by designers.
Sizing E2 roof flashings
It can be difficult to determine the critical dimensions for roof flashings in E2/AS1. We step through Table 7 to help clarify confusion when working out the minimum sizes of flashings.
Dormer roof junction detail
A very tricky roof-to-wall junction detail occurs at the top and bottom junctions of a monopitch dormer roof. Here is one option that, if built correctly, will be weathertight and look good.
Flashings keep water out
A flashing is a folded length of metal that provides a weathertight cover at junctions in and between walls and roofs. Getting them right is a good start towards constructing a weathertight building.
Roof-to-wall junction
BRANZ is sometimes asked how to detail roof-to-wall junctions. The detailing can be tricky, but following the Acceptable Solution and these step-by-step illustrations will help.
Roof flashings
Flashings play a vital role in keeping water out of buildings. Follow this useful guide to check the requirements for roof flashings in Acceptable Solution A2/AS1.
Pipe penetration through roof
Small pipe penetrations in roofs are typically flashed using proprietary EPDM boot flashings.
