Search results for 'roofs'

Bracing for monopitch roofs

By Alide Elkink – 1 December 2014, Build 145

Judging by the number of calls to the BRANZ Helpline, there’s some confusion around bracing requirements for monopitch roofs. Here, we sort out the issue.

The gen on green roofs

By Alide Elkink – 1 June 2017, Build 160

They deliver substantial environmental gains, so while New Zealand is slow to jump on the green roof bandwagon, there’s reason to think this will change.

Roof bracing

By Tom Edhouse – 1 February 2013, Build 134

We complete this four-part Build series on calculating bracing requirements by looking at roof bracing.

Edge detailing for membrane roofs

By Trevor Pringle – 1 June 2012, Build 130

Don’t be misled into thinking that rubber roofing membranes can do without edge detailing. It’s required in E2/AS1, and omitting it can lead to stained walls.

Roof drainage design

By Greg Burn – 1 October 2009, Build 114

The roof on a new building needs to be more than just aesthetically appealing and able to keep the building weathertight – it must also effectively collect and dispose of rainwater.

Extra high wind zone

By Alide Elkink – 1 February 2012, Build 128

A new wind zone category, extra high, has been added in the revised NZS 3604:2011 Timber-framed buildings, and the amended E2/AS1.

Enhancing metal element durability

By Alide Elkink – 1 June 2011, Build 124

Metal building elements may deteriorate more quickly without regular washing, so what should designers consider when incorporating metal building elements in their designs and what maintenance advice should they give clients?

Dragon ties revisited

By Roger Shelton – 1 February 2021, Build 182

While the use of dragon ties in New Zealand residential construction has decreased over recent decades, they remain a simple and cost-effective method to provide bracing solutions to larger rooms. However, BRANZ helpline queries suggest there is still some confusion around when they should be used.

Bracing using NZS 3604:2011 – part 1

By Tom Edhouse – 1 August 2012, Build 131

Providing sufficient bracing capacity for wind and earthquake is an integral part of the design process. This series starts by looking at the information needed for bracing calculations.

Roof design

By Trevor Pringle – 1 February 2011, Build 122

Good roof system design is a critical part of a good building. A roof designer must consider cost, performance and appearance, but it’s important to keep a few other factors in mind.

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