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. My son bought himself a watch over the holidays. It has a stated water resistance of one metre, but it is only capable of one metre submersion if…
Where Does the Airtightness Layer Go?
Getting layering right in New Zealand buildings for summer and winter. Following on from the previous article, one of the ingredients in modern buildings is the creation of a deliberately airtight shell to conserve energy (warm or cool). We often hear about attempts to achieve…
Triple Connected Windows – Part 2
It is very important that all aspects of the window are taken into consideration; frame system, double glazing, window size and the connections between the window and the wall.
Improving Thermal Performance with Triple Connected Windows
How to ensure standard thermally-broken windows are positioned to succeed.
Compatibility and Adhesion of Wet Seals and Sill Tapes
To help deal with the issue of sealants not bonding to substrates, pro clima will be offering a foil tape for window and door openings. We from pro clima have been working with Sika, Tremco and Bostik on this matter and have conducted several tests. While…
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- Building Science Soup November 27, 2020
- New SASH Developments Offer Social Housing with a Difference October 21, 2020
- Wellington Wows with High Performance Retrofit October 19, 2020
- Above Sheathing Ventilation – Part 1: Rise of the Cavity September 10, 2020