Holding down roofs
Securing roofs against wind uplift is a crucial step in the building process. Fortunately the cost of doing so adds very little to the overall cost of the building.
Search results for 'wind loads'
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Fixings rationalised
By Roger Shelton – 1 June 2011, Build 124, Feature article
Fixings are the Achilles heel of timber buildings. Wind and other damaging hazards find the weakest link in the building, and failure will start there. This is almost always the fixings.
Beam and truss uplifts
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.
Periphery roof areas
By Roger Shelton – 1 June 2008, Build 106
The area around the edge of a roof requires extra fixings to stop it lifting, but how much of the total roof area needs these extra fixings?
Snow loading
By Roger Shelton – 1 June 2011, Build 124, Feature article
The citing of AS/NZS 1170 Structural design actions in December 2008 introduced a number of changes to snow loading on buildings, and these have resulted in changes in NZS 3604.
Braced wall bottom plate to concrete slab connections
By Greg Burn – 1 February 2021, Build 182
Proprietary wall bracing systems are commonly used to brace a building, but how are braced walls connected to a concrete slab? We look at both NZS 3604:2011 and proprietary wall bracing elements requirements.
Maximum strength of house bracing walls
By Stuart Thurston – 1 February 2008, Build 104
A BRANZ research project has investigated load transfer in timber framed buildings – and found a number of potential weak spots.
Lintel fixing
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.
Bracing light timber-framed roofs
By Tony Conder – 1 December 2004, Build 85
Roof bracing is one element in a continuum that provides resistance to horizontal loads. It works with the wall and foundation bracing to supply a total bracing package for a building.
Key changes in NZS 3604:2011
By Trevor Pringle – 1 June 2011, Build 124, Feature article
NZS 3604:2011 will be cited later this year, so you need to know what the changes are.
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Issues (17)
- Build 183 : 1 April 2021 (1)
- Build 182 : 1 February 2021 (1)
- Build 180 : 1 October 2020 (1)
- Build 155 : 1 August 2016 (1)
- Build 149 : 1 August 2015 (1)
- Build 138 : 1 October 2013 (1)
- Build 124 : 1 June 2011 (3)
- Build 113 : 1 August 2009 (1)
- Build 110 : 1 February 2009 (1)
- Build 106 : 1 June 2008 (1)
- Build 104 : 1 February 2008 (2)
- Build 94 : 1 June 2006 (1)
- Build 85 : 1 December 2004 (1)
- Build 61 : 1 November 2000 (1)
