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Let-in plywood bracing has a long history of use. Some designers and manufacturers specify it, but some councils don’t permit it. BRANZ has found it doesn’t seem to affect structural integrity and suggests ways to resolve the uncertainty.
The BRANZ House insulation guide details the expected thermal performance for common construction options. It didn’t include the thermal performance of floor slab systems with polystyrene pods, but recent modelling means this data is now available.
A team at BRANZ designed some simple details for timber deck attachment and deck barriers and then handed them to BRANZ engineers to test. The outcome? Deck details you can be confident will perform.
Recent BRANZ testing has quantified the bracing ratings of some common older generic bracing systems. These ratings will be useful during repairs or renovations of older buildings.
A question frequently asked by readers is how do you compensate for the bracing that is removed when demolishing an internal wall during a renovation or refurbishment? We have some advice.
The BRANZ helpline regularly gets asked whether to include garages in a building’s thermal envelope and which parts should be insulated. Each situation is different, but to help answer these questions, BRANZ has carried out some thermal modelling.
Blower door tests are used to identify air leaks and reduce air infiltration into a house. However, estimating the air infiltration rate – and therefore energy loss – is not as straightforward as many assume. Knowing the physics will help understand why.
