Retrofitting to resist extreme wind
Strong wind causes damage to houses, particularly their roofs. A recent BRANZ study started by defining ‘extreme winds’ before developing retrofit solutions to ensure roofs on older houses are adequately secured.
Search results for 'wind loads'
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Wind effects on buildings
By Graeme Beattie – 1 June 2010, Build 118
With the help of BRANZ data, the Riskscape joint project between NIWA and GNS aims to better predict the costs of damaging wind events on buildings.
Design prediction of wind-induced building motion
By Ian Wells – 1 April 2009, Build 111
There are sometimes significant discrepancies between the predicted and actual building sway in taller buildings. A new study aims to develop an improved methodology for wind design of buildings.
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.
Reducing noise transfer
By Grant Emms – 1 August 2015, Build 149, Feature article
BRANZ investment combined with Scion expertise has developed a new structural connection system for timber-framed multi-residential units that maintains acoustic performance.
Bracing ratings
By Graeme Beattie, Stuart Thurston – 1 April 2014, Build 141
Recent BRANZ testing has quantified the bracing ratings of some common older generic bracing systems. These ratings will be useful during repairs or renovations of older buildings.
Ventilation drying in cavities
By Mark Bassett – 1 February 2009, Build 110, Feature article
Recent BRANZ research has shed new light on how evaporative drying in wall cavities depends on cavity dimensions, vent sizes and climate.
Open windows for dry home
By Peter McDowall – 1 February 2017, Build 158
Recent BRANZ research has quantified one aspect of an important but often overlooked factor for achieving a dry home – occupant use.
NZS 3604 review preparation
By Roger Shelton – 1 August 2009, Build 113
The current technical review of our timber-framed building standard is limited by the rapid rate of change still occurring in the industry.
The science behind dry walls
By Mark Bassett – 1 October 2013, Build 138, Feature article
A BRANZ program has the answers for those keen to understand how vents in cavity walls help keep walls dry. By using this knowledge, keeping it simple and following the 4Ds – drying, deflection, drainage and durability – walls will be weathertight.
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Issues (17)
- Build 180 : 1 October 2020 (1)
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