This website is best viewed on a newer browser than the one you are using. Learn about upgrading your browser (opens in a new window/tab)
Welcome to BRANZ Build. Skip to main content.
Showing results 1-10 of 18
Order by:
BRANZ recently completed research to understand the movement of air and water in the cavities around windows. This has provided new insight into alternative ways of managing water at the difficult junction between walls and windows.
It is common to hear that walls need to breathe to control moisture and that filling stud cavities with insulation might hinder the passage of air and moisture inside the wall. Is this right?
Weathertightness research completed by BRANZ over the last 6 years has shed light on evaporative drying in wall cavities, indicating that climate, vent sizes and cavity depth all play a part.
BRANZ is often asked whether adding insulation to walls built without building paper changes the moisture performance of the wall in any way. A research project is providing some answers.
The BRANZ drainage plane programme has been exposing overseas products to real climatic conditions to investigate their functionality and potential for the New Zealand market.
How much ventilation, heating and insulation is required to avoid condensation and mould? The new moisture tab in BRANZ’s online energy calculator, ALF 3.2, has the answers, but how does it work?
The many examples of rotting parapets have raised concerns about the details used. A 2-year BRANZ project assessing the performance of parapet walls provides confidence that parapets can manage water when E2/AS1 details are used.
Remediation work on leaky buildings is exposing workers to biocontaminants from the deteriorated building materials inside the walls. Recent research highlights the importance of always following good health and safety procedures.
Recently, several cases of an insidious new form of thermal bridging have been seen. Aggravating factors have been identified that contributed to the problem, so there are now lessons to be learnt to avoid this on other buildings.
The weathertightness team at BRANZ has been continuing their research measuring drying rates in different types of walls. The results show the importance of wall design to speed drying.
