What makes weatherboards weathertight?
A detailed study of water leakage through 14 walls clad with weatherboards sheds some light on the origin of leaks.
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A detailed study of water leakage through 14 walls clad with weatherboards sheds some light on the origin of leaks.
From time to time, the BRANZ Helpline receives calls querying the differences between details shown in E2/AS1 and the BRANZ ‘weathertight solutions’ books. To understand the differences between the two documents, it is necessary to understand the role each plays.
Wall underlay plays an important role in the weathertightness of exterior wall assemblies in light timber-framed residential buildings, yet often it is poorly installed. Getting it right can be as simple as 1, 2, 3.
For many cladding materials the horizontal joints are dealt with in the design of the cladding itself, e.g. weatherboards. This article is concerned about those claddings that need horizontal joints to accommodate movement or sheet size.
In the August/September 2002 edition of Build you would have received the BRANZ weathertightness poster. This column takes a detail from the poster and provides a ‘good practice’ solution to it.
The weathertightness team at BRANZ has been continuing their research measuring drying rates in different types of walls. The results show the importance of wall design to speed drying.
Twelve simple construction tips can improve the weathertightness of buildings in windy situations.
One of the more difficult areas of detailing is excluding water where a pipe, meter box, or decorative or structural member penetrates the wall cladding material. Although the best option is to avoid penetrations here are some details that can help.
In previous editions of Build we’ve talked about window/door heads and jambs. It’s now time to look at sills.
Want a quick guide to installing a window in a wall where a low level of weathertightness risk permits direct fixing of the cladding to the wall framing? Follow these easy steps for a snug-fitting window.