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 updates to the NZ Metal Roof and Wall Cladding Code Practice (COP), is effective 1 February 2019.
In this update, no recommendations have been altered that would require changes to existing projects in progress.
Summary of Changes in this Update
- Two new clauses were added in 3 Structure to discuss 3.4.5 Material Grade and 3.4.6 Material Thickness.
- Two new, separate, clauses under 4.15 Clearances, discuss 4.15.1 Ground Clearance and related 4.15.2 Site Management in more detail.
- Clauses dealing with 3.12.1 Screw Fasteners fixing to specific purlin types re-ordered for clarity.
- New drawing to show recommended 9.4A Recommended Penetration Type Positioning.
- Other updates consist of Category 1 – minor errata corrections to spelling, and grammar and layout.
| Category | Clause Number (at time of update) | Clause (As of current publication) | Details |
|---|---|---|---|
| 2 - Editing and rearrangement | 3.12.1 | 3.12.1 Screw Fasteners | Clauses dealing with fixing to specific purlin types re-ordered for clarity. |
| 1 - Minor Errata | 3.13.1 | 3.4.1 Corrugate Profile | Minor grammatical editing for clarity. |
| 1 - Minor Errata | 3.14.3 | 3.9.3 Maximum Spans for Corrugate Wall Cladding | Heading says 0.40 mm but Table is .40 and .55. So remove .40 from heading |
| 1 - Minor Errata | 4.6.1 | 4.6.1 Assessment of Marine Environments | Removed full stop from the heading. |
| 2 - Editing and rearrangement | 4.8.1 | 4.8.4 Lichen | Resized photo (4.8.4A Lichen on a Metal Roof) and inserted photo (4.8.4B Permanent Damage from Lichen Growth. |
| 2 - Editing and rearrangement | 4.15 | 4.14 Swarf Staining and Cut Edge Corrosion | Renamed clause. Resized photos and inserted new photo ( 4.14D Cut Edge Corrosion ) |
| 1 - Minor Errata | 4.17.3 | 4.16.3 Aluminium | fixed spelling of "quaters" to quarters |
| 1 - Minor Errata | 4.18.1.3 | 4.17.1.3 Top Coat and Backer | 0 |
| 1 - Minor Errata | 5.3.1 | 5.3.1 Catchment Area | Removed (Optional Caption) from A Wind-effect on Rain |
| 1 - Minor Errata | 6.1.1 | 6.1.1 E2 Objective | Set format as Block Quote |
| 1 - Minor Errata | 6.1.2 | 6.1.2 E2 Functional Requirement | Format as block Quote. |
| 1 - Minor Errata | 6.3 | 6.3 Related Topics | Changed link "Internal Moisture" to "Roof Ventilation. |
| 2 - Editing and rearrangement | 9.5.6 | 9.4.2.5 Sheetmetal Flashings on Corrugated Profiles | Revised and renamed clause. |
| 1 - Minor Errata | 14.5.1 | 14.23.1 Crest Fixing | Corrected minimum embedment into soft wood from 35mm to 30mm aligning with E2/AS1 and other reference in 3.8.3 Timber Purlins |