Sizing rafters
NZS 3604:2011 Timber-framed buildings sets out how to size rafters in table 10.1. The BRANZ technical helpline has received queries on doing this, so let’s step through some examples.
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By Tom Edhouse – 1 June 2014, Build 142
NZS 3604:2011 Timber-framed buildings sets out how to size rafters in table 10.1. The BRANZ technical helpline has received queries on doing this, so let’s step through some examples.
By Tom Edhouse – 1 February 2013, Build 134
We complete this four-part Build series on calculating bracing requirements by looking at roof bracing.
By Tom Edhouse – 1 October 2013, Build 138
There seems to be some confusion around selecting lintels and deciding if uplift fixings are required using NZS 3604:2011 Timber-framed buildings Table 8.14, so grab your copy of NZS 3604 and work through the steps.
By Roger Shelton – 1 June 2014, Build 142
Verge overhangs are the areas of a timber-framed roof that are most vulnerable to wind damage, so it’s important to get them right.
By Roger Shelton – 1 August 2015, Build 149
Roof failures in high winds are unfortunately too common in timber-framed buildings, but get the connections right, and the roof should stay put.
By Roger Shelton – 1 April 2018, Build 165
The BRANZ helpline often gets asked about fixings for veranda rafters. These are not covered in NZS 3604:2011, but BRANZ has some advice.
By Bruce Sedcole – 1 October 2020, Build 180
BRANZ regularly receives queries about hold-down fixings to the exterior walls of timber-framed buildings. This overview sets out the fixing requirements in NZS 3604:2011 for resistance to uplift for the various framing members.
By Roger Shelton – 1 August 2013, Build 137
Aspects of NZS 3604:2011 Timber-framed buildings are causing some confusion. Here, we answer some questions on veranda beam fixings.
By Alide Elkink – 1 December 2019, Build 175
The correct fixings are needed at the various junctions of a timber-framed building structure to resist uplift in windy conditions. In this article, we summarise where to find them in NZS 3604:2011 and what is required.
By Alide Elkink – 1 August 2012, Build 131
The BRANZ Helpline regularly receives enquiries about when strapping must be used to tie the timber framing together. These tips should point you in the right direction.