Description

High-performance testing of windows for weathertightness developed by BRANZ should give the industry confidence in the weathertightness of window to wall joints.

Means of assessing the weathertightness of claddings and windows in New Zealand have been developed over many years driven by responses to weathertightness concerns or advances in construction, cladding or window technologies. This has led to methods for testing the performance of claddings before, during and after construction.

Scope

The article includes:

• Testing overlooked thermal performance
• New Zealand has its own unique environment
• Two evaluation methods developed
• EM9 assessment
  • EM9 test introduces water
  • Aims of EM9
• Where EM9 can be used
• Test available at BRANZ