Above Sheathing Ventilation – Part 0: Flat Roofs
Download Article What’s a Ventilated Flat Roof? It is a low-pitched roof (≤10º) with an additional ventilated cavity space below the roof cladding. According to our European colleagues, it provides the opportunity to implement a diffusion open/permeable layer on the outer side of…
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
Download Article Earth is just a pale blue dot in the context of our solar system. It’s a pretty wet world, 70% is covered in water. Our planet’s blue colour is the result of all this water reflecting blue wavelengths of light from…
Above Sheathing Ventilation – Part 1: Rise of the Cavity
Download Article The Origin Story Every superhero needs one. If Above Sheathing Ventilation (ASV) is the superhero of roofs that work, then how and why did ASV come into being? We have a problem with the way we’ve been doing roofs in Australia and…
Hunting for Air Leaks
The Blower Door test is a tried-and-true technique of measuring the air leakage rate of a building with confidence. It is so reliable, repeatable and universally comparable that building codes around the world require them by law. They offer the ability to sum up the…
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