You should test the weather tightness of a curtain wall, windows, and designs under cyclonic winds, rain, and earthquakes but you shouldn’t think that is a guarantee of performance in-situ:
When talking about building enclosure performance, we commonly refer to control of the following elements: water, heat, and air. Controlling the free flow of these elements across and into the
Remember procedure BW from BWS005? The one that looks like a roof? Well let’s use that same idea for a wall underlay that is pliable and see if water drips through.
A test for the waterproof-yness of a waterproof membrane. Is the waterproof membrane actually waterproof? Seems like a completely fair question to me. Well funny enough, in NZS 4858, our
Standards are not a replacement for mastery, they are not a best practice guide, they aren’t even applicable in many cases. They are just a benchmark of some sort of
We’ve totally fucked this one up. Energy use in buildings is complex and difficult to predict even for the smartest of people (performance gap explained here) and even with the
Nope, not doing a dog impersonation here. Before I explain what WUFI is, I think I first need to explain why it exists. For decades, we (building scientists) have been
The building code in NZ is a 100% performance based code. And for people like me, it is awesome. Yes, I said it, it’s an awesome building code. You can
The MBIE Consultation document for amending acceptable solutions and verification methods June 2020 update contains some significant but confused updates for how cladding assemblies demonstrate compliance for fire spread. In
In the face of literally decades of research and millions of homes built and studied, the builders and developers here in NZ are somehow still convincing financiers, designers, and regulators
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