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  BU631 How micro-environments affect material performance

BRANZ is monitoring sun, rain, wind and wind-blown sea salt in different positions on a building envelope. BU631 image.JPG

These conditions help to create a variety of micro-environments over the building that can be very different from the surrounding atmospheric environment.

This bulletin reports on the first monitoring of how micro-environments affect material performance on a BRANZ test building near Wellington.

This bulletin covers: 

  • Testing and the test building
  • Temperature
  • Time of wetness
  • Wind-driven rain
  • Salt deposition
  • UVA irradiation
  • Corrosion rates of mild steel coupons
  • Corrosion rates of mild steel nails in timber