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Installation - Positioning of flashings and sarking

The following diagrams illustrate correct positioning of flashings and sarking on timber cladding. Note that in each case the flashing or sarking on timber cladding is positioned between the external cladding and the corner studs.

Diagrams showing weatherboard stops placed inside internal corners and along one side of an external corner. Flashing/sarking behind each of these corners is also shown.

Weatherboard stops

Each corner join has the cladding butting up to a weatherboard stop, a narrow piece of timber which is used at corners.

Diagrams showing double corner boards placed over one external corner and mitred corner boards placed over another. Flashing/sarking behind each of these corners is also shown.

Corner boards

The corner join may be covered by corner boards to protect the cladding join underneath.

Corners without weatherboard stops or boards

Diagrams showing one internal corner with a weatherboard stop and another with scribed joints. Flashing/sarking behind each of these corners is also shown.

The corner joins show the cladding being cut to match exactly in the corners without additional timber required. The mitred corner is used for an external corner and the scribed joint is used for an internal corner.

Sarking and vapour barriers

Diagram showing a weatherboard stop placed between timber and brickwork, and a vapour barrier placed behind the stud. In both cases, sarking is shown immediately behind the boards. On the exterior side is the cladding and brick piers, then the sarking, on the other side of which are the stud framework and internal lining.