Wall underlay installation
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.
Walls
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Supply chain affects materials choice
By Matthew Curtis – 1 April 2022, Build 189, Feature article
The last year has been an interesting one for market share of building materials as changing preferences and availability issues due to supply chain constraints influence market share.
The hip ridge detail
By Tony Conder – 1 August 2003, Build 77
Here’s a simple way to make your ridge junctions neat and tidy.
What makes weatherboards weathertight?
By Mark Bassett – 1 December 2008, Build 109, Feature article
A detailed study of water leakage through 14 walls clad with weatherboards sheds some light on the origin of leaks.
Locating walls
By Trevor Pringle – 1 June 2015, Build 148
Here, we use drawings to explain the specific parameters for the location of loadbearing or braced walls for suspended timber floors.
It’s not worth the risk
By Trevor Pringle – 1 June 2018, Build 166
The weather’s not good but the job needs finishing. Is it worth the builder taking a risk and using a flexible wall underlay as temporary weather protection to carry on with work that needs to be kept dry? BRANZ has no doubt that the answer is no.
Bracing blocks and wings
By Trevor Pringle – 1 December 2018, Build 169
More complex building designs may include wings with shared walls that have extra considerations for bracing demand.
High-performance domestic walls
By David Hindley – 1 February 2021, Build 182
Wall design will play a key role in the improved thermal performance of new houses as we move toward net-zero carbon construction. One recent research project found problems with current wall construction, but another developed high-performance details that take us a leap ahead.
Inter-tenancy walls in MDH
By Guy Marriage – 1 October 2022, Build 192
Townhouses and apartment buildings are here to stay, but we need to design and build them to far higher standards than we do now. In part 1 of a new series looking at designing and building medium-density housing, we look at inter-tenancy walls.
Lintels under gable ends
By Roger Shelton – 1 December 2018, Build 169
At BRANZ, we often get asked if it’s necessary to have a lintel over an opening in a wall under a gable end where the gable framing may be able to span the opening without support from the lintel. Here’s our advice.
