Extending the gable
Another common feature of many leaky buildings that can be worth changing is the flush gable or the roof gable hidden behind a parapet.
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Another common feature of many leaky buildings that can be worth changing is the flush gable or the roof gable hidden behind a parapet.
A common feature of many leaky buildings is that they were constructed without eaves, usually with walls terminating with a parapet. Changing this design detail can greatly enhance a building’s weathertightness.
A wall or roof underlay is very different from a vapour barrier. One lets moisture through and out of a building and the other doesn’t. Using the wrong one will trap moisture where you don’t want it.
The risk matrix in E2/AS1 is a key tool for weathertightness assessment and showing compliance with the Building Code. Let’s walk through the steps on how to use it.
When it comes to weathertightness, Building Code Clause E2 External moisture and the compliance document E2/AS1 are the critical documents for any designer.
On the surface, profiled metal as a sheet wall cladding should be a straightforward option, after all it’s been used successfully on roofs for years. However, when used on walls it poses its own set of unique challenges.