Description

In response to industry questions, BRANZ recently launched a research project into corrosion rates in vented roof spaces. Two roof spaces have been built in an unforgiving coastal environment and will be monitored.

Scope

The article includes the following parts:

• Ideal location to test material degradation
• Eliminating excess roof moisture
• Adding passive roof venting
• Could vents be creating issues?
• Roofs built to test corrosion rates on fixings
• Mild, galvanised and stainless steel samples
• First step to providing guidance