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.
The NZ Metal Roof and Wall Cladding Code of Practice (COP) is published by NZ Metal Roofing Manufacturers Inc. (MRM), to provide:
- acceptable trade practice for the fixing of metal roof and wall cladding and accessories.
- prescriptive detailing for designers and sets a benchmark for the standard of detailing and workmanship required over and above that required to comply with the NZBC.
The COP does not describe or dismiss alternative methods, which may need specific acceptance by the Building Consent Authorities.
It is published in accordance with current technology, materials, and building codes. The COP will be periodically updated to reflect changes in legislation and standards or improvements in technology and available materials.
The most current Code of Practice is available on the MRM website, www.metalroofing.org.nz/cop, as Code of Practice Online (MRM COP Version 3).
The most recent updates to the NZ Metal Roof and Wall Cladding Code of Practice were published on 1 June 2022.
Clause 15.4 Standing Seam Cladding and all its sub-clauses were comprehensively revised for this update.
Change in recommendation:
- 3.20 Aluminium Fastening Pattern Tables: Corrected minimum depth of corrugated aluminium to 16.5 mm instead of 27 mm, which brings it into line with corrugated steel profiles.
- Added H36 to the headings in 3.20 Aluminium Fastening Pattern Tablesfor correct identification and product selection.
The rest of the updates consisted of minor changes, grammar fixes, and minor edits to improve clarity.For more detailed information, see 19.1 2022 – June.