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John Burgess

BRANZ Senior Scientist,
BRANZ Senior Sustainability Scientist,
BRANZ Sustainability Consultant,
BRANZ Weathertightness Scientist

Articles by this author

Rules for windows H1 compliance

1 October 2023 , Build 198

Solar heat gain coefficient for windows

1 April 2022 , Build 189

Testing windows for weathertightness

1 April 2021 , Build 183

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Testing mid-rise cladding

1 August 2020 , Build 179

Could windows be installed better?

1 December 2017 , Build 163

Equipment for testing IGUs.

Developing local IGU tests

1 August 2016 , Build 155

Windows can now star

1 December 2014 , Build 145

New window ratings

1 February 2014 , Build 140

Does prefab stack up?

1 August 2013 , Build 137

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Surface coefficients for windows

1 February 2013 , Build 134

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Window wind zones

1 April 2012 , Build 129

Reaching for the stars

1 February 2012 , Build 128

Window frame selection

1 October 2011 , Build 126

Figure 1: Internal condensation forms on the cold single-glazed pane on the left but not on the warmer doubled-glazed pane on the right.

Fading, noise and other glazing issues

1 August 2011 , Build 125

Solar control glazing

1 June 2011 , Build 124

Low-emissivity glass

1 May 2011 , Build 123

Emissions trading scheme

1 October 2010 , Build 120

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Home heating energy use

1 August 2009 , Build 113

Insulating for comfy winters

1 June 2009 , Build 112

Solar walls in action

1 April 2009 , Build 111

Pitfalls of avoiding double glazing

1 October 2008 , Build 108

Retrofitting double glazing

1 April 2008 , Build 105

Setting the standard for weathertightness

1 December 2007 , Build 103

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Understanding double glazing or IGUs

1 August 2007 , Build 101

Window changes affect weathertightness

1 February 2007 , Build 98