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.
The following revisions to the NZ Metal Roof and Wall Cladding Code of Practice were published on 1 June 2022.
Revised clauses:
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 17 mm instead of 27 mm.
- Added H36 to the headings for correct identification and product selection.
The rest of the updates consisted of minor changes, grammar fixes, and minor edits to improve clarity.
19.3A Revision Detail - 2022 - June
| Category | Clause Number (at time of update) | Clause (As of current publication) | Details |
|---|---|---|---|
| 3 - Substantial change to recommendation | 3.2 | 3.20 Aluminium Fastening Pattern Tables | Corrected minimum depth of corrugated aluminium to 17 mm instead of 27 mm. Added H36 to the headings for correct identification and product selection. |
| 3 - Substantial change to recommendation | 7.1.1 | 7.1.1 Minimum Roof Cladding Pitch | Added corrugated profiles with a height of more than 35 mm to 7.1.1A Minimum Pitch for Generic Metal Roofing. |
| 3 - Substantial change to recommendation | 8.3 | 8.3 Flashing Cover | Increased recommended cover for 8.3E Barge Flashing Cover — Trapezoidal and Secret Fixed and 8.3G Barge Flashing Cover — Corrugate Category C from 50 mm to 75 mm. |
| 3 - Substantial change to recommendation | 15.4 | 15.4 Standing Seam Cladding | The entire clause 15.4 Standing Seam Cladding, including all sub-clauses, had been revised. |
| 3 - Substantial change to recommendation | 15.4.3 | 15.4.1 Standing Seam Materials | This sub-clause has been entirely revised as part of the revision of the main clause 15.4 Standing Seam Cladding. |
| 4 - Clause Inserted | 15.4.2 Standing Seam Profiles | New clause, inserted as part of a comprehensive revision of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.3 Standing Seam Fixings | New clause, inserted as part of a comprehensive revision of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.4 Standing Seam End Laps | New clause, added as part of the comprehensive revision of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.5 Sarking | New clause, introduced as part of a comprehensive revision of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.6 Standing Seam Ventilation | New clause, introduced during a comprehensive review of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.7 Standing Seam Roofing Wind Loads | New clause, introduced during comprehensive revision of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.8 Penetrations on Standing Seam Cladding | New clause, introduced during a comprehensive review of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.9 Canning and Purlin Creasing | New clause, introduced as part of a comprehensive revision of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.10 Installing Standing Seam Cladding | New clause, introduced as part of a comprehensive revision of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.10.1 Standing Seam Cladding Set Out | New clause, introduced a during a comprehensive revision of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 15.4.10.2 Provision for Expansion — Standing Seam Cladding | New clause, introduced during a comprehensive revision of 15.4 Standing Seam Cladding. | |
| 4 - Clause Inserted | 19.1 | 19.3 2022 – June | Revision message June – 2022. |
| 2 - Editing and rearrangement | 1 | 1 Introduction | Update Revisions Message |
| 2 - Editing and rearrangement | 3.18 | 3.18 G550 Steel Cladding Fastening Pattern Tables | Edited table headings for improved readability. Inserted a table explaining wind speed as per NZS 3604. |
| 1 - Minor Errata | 9.4.2.3 | 9.4.2.3 Cricket Back Curbs | Grammar fix. Rewrote the last sentence. |
| 1 - Minor Errata | 17.1.2.2.3 | 17.1.2.2.3 Number of Spans | Clarification. |
| 0 - Clause Removed | 15.4.1 | Self-Supporting Cladding | Clause removed during a comprehensive revision of 15.4 Standing Seam Cladding. The subject is now discussed through various new sub-clauses. |
| 0 - Clause Removed | 15.4.2 | Fully Supported Roof And Wall Cladding | Clause removed during a comprehensive revision of 15.4 Standing Seam Cladding. For information about the subject, see 15.4.5 Sarking. |
| 0 - Clause Removed | 15.4.2.1 | Types | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.2.2 | Traditional Architectural Metal Panels | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.2.3 | Long Length Strip Roof Cladding | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.2.4 | Types Of Joints | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.2.5 | Standing Seam | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.2.6 | Angled Seam | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.2.7 | Roll Cap | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.2.8 | Transverse Laps | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.3.1 | Copper | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. For information about this material, see 4.16.5 Copper. |
| 0 - Clause Removed | 15.4.3.2 | Zinc | Clause removed as part of the complete revision of 15.4 Standing Seam Cladding. For information about this material see 4.16.4 Zinc. |
| 0 - Clause Removed | 15.4.3.3 | Aluminium | Clause removed as part of the complete revision of 15.4 Standing Seam Cladding. For information about this material see 4.16.3 Aluminium. |
| 0 - Clause Removed | 15.4.3.4 | Stainless Steel | Clause removed as part of the complete revision of 15.4 Standing Seam Cladding. Information about this material can be found at 4.16.2 Stainless Steel. |
| 0 - Clause Removed | 15.4.3.5 | Coated Steel | Clause removed as part of the revision of 15.4 Standing Seam Cladding, information about this product is still available in 4.16.1 Steel. |
| 0 - Clause Removed | 15.4.4 | Loadings | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.4.1 | Fixing | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.4.2 | Substrate | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.4.3 | Fasteners | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.5 | Underlay | Clause removed during a comprehensive revision of 15.4 Standing Seam Cladding. Information about underlay can be found in 10.11 Underlay. |
| 0 - Clause Removed | 15.4.6 | Ventilation | Clause removed during a comprehensive revision of 15.4 Standing Seam Cladding. The subject is now discussed in 15.4.6 Standing Seam Ventilation. |
| 0 - Clause Removed | 15.4.7 | Drainage | Clause removed during a comprehensive revision of 15.4 Standing Seam Cladding. For information about drainage, see 5 Roof Drainage . |
| 0 - Clause Removed | 15.4.7.1 | Valleys | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.8 | Facade Cladding | This clause was removed during a comprehensive revision of 15.4 Standing Seam Cladding. The subject is now discussed through various other sub-clauses. |
| 0 - Clause Removed | 15.4.9 | Edge Finishes | This clause was removed during a comprehensive revision of 15.4 Standing Seam Cladding, please see the new sub-clause 15.4.4 Standing Seam End Laps. |
| 0 - Clause Removed | 15.4.9.1 | Ridge And Hip | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.9.2 | Apron Or Abutment | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.9.3 | Eaves And Verge | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.9.4 | Penetrations | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.9.5 | Cappings | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.10 | Durability | Clause removed during a comprehensive revision of 15.4 Standing Seam Cladding. For durability issues, see 15.4.10 Durability. |
| 0 - Clause Removed | 15.4.10.1 | Patina Formation | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.10.2 | Copper Patination | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |
| 0 - Clause Removed | 15.4.10.3 | Zinc Patination | Clause removed as part of the overall revision of 15.4 Standing Seam Cladding. |