Code of Practice v3.0 Online
The NZ Metal Roof and Wall Cladding Code of Practice is a comprehensive design & installation guide, and a recognised related document for Acceptable Solution E2/AS1 of the NZ Building Code.
COP v3.0:durability
View Whole Section for Durability
Corrosion (B2-Durability) covers considerations for continued performance of roof and wall cladding over the building lifecycle.
Key topics include:
- Material performance and coatings.
- Corrosion: environmental categories and special climates.
- Material compatibility — both "in contact with" and "runoff onto".
- Maintenance for prevention and remediation of corrosion.