SR322 Weather grooves in weatherboard claddings (2015)
- Abbreviation
- SR322
- Valid from
- 1/01/2015
- Information provider
- BRANZ Limited
- Author
- M. Bassett and G. Overton
- Information type
- Study report
- Format
Description
Capillary grooves (more commonly referred to as weather grooves) have been formed into the lap joints in timber weatherboards in New Zealand from the late 1970s to this day. They are rarely seen in fibre-cement and wood fibre composite claddings. This study set out to measure the improvement in weathertight performance that could be attributed to weather grooves in timber claddings.