Module: Properties of moisture
The structure and behaviour of moisture can help us understand why a house is having weathertightness issues and how to design to avoid those issues. Weathertightness issues in houses can lead to health problems, financial headaches and structural worries.
Topics covered in this self-paced module:
- Why is moisture important to understand?
- What form does H₂O take?
- How does it behave?
- Library of useful material
Gain 100% in the test at the end of the module, and you'll receive a record of your completion that can be submitted as part of your CPD activity log.
Site results
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Heating
<p data-block-key="ekdow">Warmer houses are better able to deal with moisture, and a warmer, drier indoor environment reduces the likelihood of damp and mould. Living in a cold, damp, mouldy home can lead to poor health.</p>
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Research creates change
<p data-block-key="xjjm1">The BRANZ House Condition Survey informs policy decisions that affect the living conditions of all New Zealanders.</p>
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Construction R-values
<p data-block-key="9i9ck">These graphs use H1 settings from the 4th Edition of H1, pre-November 2021. They compare these settings to medium proposals for construction R-values in <i>Thermal, financial and carbon review of NZBC energy efficiency clause H1/AS1 thermal envelope requirements for residential and small buildings</i>.</p>
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Mould and damp
<p>Mould is a key indicator of poor indoor environmental quality and has implications for occupant health, including links to asthma, respiratory infections and rheumatic fever.</p>
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Prolam H3.2 & H5 CCA Glulam (GLT)
<p data-block-key="zxev8"><a href="https://epd-australasia.com/epd/prolam-glue-laminated-timber-glulam/">https://epd-australasia.com/epd/prolam-glue-laminated-timber-glulam/</a></p>
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Prolam H3.2 & H5 MCA Glulam (GLT)
<p data-block-key="33my9"><a href="https://epd-australasia.com/epd/prolam-glue-laminated-timber-glulam/">https://epd-australasia.com/epd/prolam-glue-laminated-timber-glulam/</a></p>
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Universal design
Universal design is about making buildings accessible to all people of all abilities at any stage of life. It includes people who use wheelchairs or other mobility aids, people with impaired vision and people who are elderly or very young.
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Q1: January - March 2025
<p data-block-key="ojv9j">BRANZ shares the top sector trends and insights every quarter</p>
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Pilot Housing Survey #3: Insulation, ventilation, space heating and water heating
<p>During the Pilot Housing Survey trained assessors visited 832 houses and found specific areas where New Zealand’s housing stock can be improved.</p><p></p><p>Read the <a id="2366" linktype="page">full report</a></p>
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Harnessing rainwater and greywater #1: Rainwater harvesting systems in New Zealand houses
<p>Domestic rainwater harvesting systems collect rainwater and store it for use by the household. That use may be just watering the garden or flushing the toilet, but with the right treatment, rainwater can provide for every need, including food preparation and drinking water.</p>