Page 6 - Build 151
P. 6
GET IN TOUCH WITH BUILD
You are welcome to send the Editor a note at any time. Email Annemarie. Crampton@ branz.co.nz
From the Editor
Too damp to live in
IT REALLY DOESN’T SEEM TOO LOFTY an ambition to want New Zealand homes to be warm and dry – to be healthy. However, in this Build, we present some shocking examples of new builds that are failing at this most basic level. Just look at the condensation in the cover photo from inside a 1-year old home (see page 55 for more).
For 6 years, BRANZ’s WAVE (Weathertightness, Air quality and Ventilation Engineering) programme has been improving our understanding of how buildings manage contaminants, including moisture. By modelling the science and testing the results in the eld, our scientists have been able to assist in developing tools such as WUFI (see page 52). This helps designers and builders to analyse heat and moisture movement within buildings and assess the impact of features they may want to use.
This extensive programme is now moving to another stage. We’re delighted to showcase some of the key internal moisture and ventilation ndings in both this Build (see pages 46–62) and the February issue.
WAVE has highlighted a trend to more airtight buildings and found associated problems with internal moisture build-up. Often, newer houses have insu cient ventilation occurring even though they meet Building Code clause G4 Ventilation. This is aggravated by the developing trend of occupants not opening windows and extractor fans or clothes dryer ducts that are too small or poorly installed. With changes in building practice and use, it seems timely to review G4.
New Zealanders deserve to have homes that manage moisture e ectively and provide safe indoor environments. I hope this Build increases your understanding of how buildings manage moisture and helps you nd practical solutions to related internal moisture problems in New Zealand homes.
With Christmas fast approaching, I would also like to thank you for your support this year, and to wish you and yours a very happy Christmas. Best wishes for 2016.
Annemarie Crampton
Build Editor
4 — December 2015/January 2016 — Build 151
BRANZ’s core purpose
To improve people’s lives through our research
and our drive to inform, educate and motivate those who shape the built environment.
1222 Moonshine Road, RD1, Porirua 5381
Private Bag 50 908, Porirua 5240
Telephone +64 4 237 1170
Facsimile +64 4 237 1171
Web www.buildmagazine.org.nz and branz.co.nz
Build is published six times a year by BRANZ and is part funded by the Building Research Levy.
Please contact the Build Editor at BRANZ Wellington o ce for permission to reprint articles.
ISSN: 0110 4381
Editor Annemarie Crampton [email protected]
Deputy editor Dael Climo
Design and layout David Ronalds,
Paul BrittainMorby
Proofreading Mary Bennett
Advertising sales Graeme Hughes
T (07) 839 2602 or (027) 478 5254
E [email protected]
Subscriptions and rates
Subscribe online through the BRANZ Shop at www.branz.co.nz or phone 0800 80 80 85.
Free to building contractors who pay the Building Research Levy.
Oneyear NZ subscription $55.95
Students $41.40
Oneyear overseas $81.95
Printed by
Printlink, Petone, using soyabased inks. Paper is Sumo K Matt stock from Hansol Paper Co. in Korea manufactured under the environmental management system ISO 14001 using elemental chlorinefree (ECF) pulp from sustainable, well managed forests.
Publication disclaimer
The information contained within this publication is
of a general nature only. BRANZ Ltd does not accept any responsibility or liability for any direct, indirect, incidental, consequential, special, exemplary or punitive damage
or for any loss of pro t, income or any intangible losses,
or any claims, costs, expenses or damage, whether in contract, tort (including negligence), equity or otherwise, arising directly or indirectly from, or connected with,
your use of this publication or your reliance on information contained in this publication.
Advertising policy
Advertisements bearing the BRANZ Appraisal symbol are
for speci c products that have been appraised
and are certi ed as t for purpose. Claims made for products and services in other advertisements do not imply endorsement by BRANZ Ltd.
(30/06/15) 17,960
