BRANZ. Welcome to BRANZ

Login

My BRANZ.

  BU604 Vapour control in New Zealand buildings

BRANZ has examined the issue of vapour control in New Zealand buildings from a wide perspective. BU604 image.jpg

This bulletin gives some options for reducing the level of humidity in wall construction.

The best ways to prevent condensation problems are to control moisture at source, adequately vent occupied spaces and minimise airflow to colder parts of the structure. This bulletin includes: 

  • Water vapour and condensation
  • Vapour barriers and vapour retarders
  • New Zealand residential construction and whole-house moisture transport 
  • Overseas practice
  • Exterior climate
  • Indoor climate
  • BRANZ research
  • Roof moisture