Drier Education: An Insight into the MOE’s Weathertightness Design Requirements for School Buildings
In this article we look at some of the elements included from Version 3.0 onwards of the Ministry of Education’s Weathertightness Guidance document which would be deemed ‘above code’, and discuss the whys, hows and wheres of their practical application.
Above Sheathing Ventilation – Part 3: Fighting the Sun
Summer brings another set of challenges, but ASV is ready to take on the fierce forces of the Sun!
Above Sheathing Ventilation – Part 2: The Blue Planet
We are wet beings living on a wet planet, but we want our buildings to be as dry as possible in order to be durable and to provide healthy places to live, work and play.
Thermoplastic Elastomer Ether Esters: What are they, how do they work?
Exterior membranes for roofs and walls by pro clima incorporate a monolithic Thermoplastic Elastomer Ether Ester (TEEE) film.
Above Sheathing Ventilation – Part 1: Rise of the Cavity
If Above Sheathing Ventilation (ASV) is the super hero of roofs that work, then how and why did ASV come into being?
Fire Testing for Temporary Wall Cladding
A look at how a peel and stick weathertightness membrane performs in a fire when used as a temporary cladding. Combustible, not combustible, smoke development, spread of flame. Closed cavity, intumescent seals, peak heat release, total heat release. Too much information? What was the question…
Renovating and Insulating Masonry Walls
Why strapping and lining masonry walls on the inside is not a good idea, not for renovation, not for new builds. In my previous article ‘Adding Insulation and Wall Underlay to Existing Walls’ I referred only to timber-framed walls, but many renovations also include block walls;…
Adding Insulation and Wall Underlay to Existing Walls
How can we safely add insulation to existing walls without risking trapped moisture and compromising durability? Whether you design for renovation work on a daily basis or you need to renovate your own house, it’s a very rare opportunity to make great improvements to the…
Achieving Winter Warmth in New Zealand Homes
Common themes with comfortable high performance houses are insulation, airtightness, ventilation and heating. Escaping the winter cold by getting a fix in Fiji is pretty good, but this winter I know a few people who have relished winter arriving, and not just because of the…
Water Resistant vs. Watertight
Protecting structure from moisture before, during and after construction is a code minimum requirement of B2 durability.
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