COP v3.0:revision-history; 2019-february

19.10 2019 – February 

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


CategoryClause Number (at time of update)Clause (As of current publication)Details
2 - Editing and rearrangement3. Screw FastenersClauses dealing with fixing to specific purlin types re-ordered for clarity.
1 - Minor Errata3. Corrugate ProfileMinor grammatical editing for clarity.
1 - Minor Errata3. Maximum Spans for Corrugate Wall CladdingHeading says 0.40 mm but Table is .40 and .55.  So remove .40 from heading
1 - Minor Errata4. Assessment of Marine EnvironmentsRemoved full stop from the heading.
2 - Editing and rearrangement4. LichenResized photo (4.8.4A Lichen on a Metal Roof) and inserted photo (4.8.4B Permanent Damage from Lichen Growth.
2 - Editing and rearrangement4.154.14 Swarf Staining and Cut Edge CorrosionRenamed clause. Resized photos and inserted new photo ( 4.14D Cut Edge Corrosion )
1 - Minor Errata4. Aluminiumfixed spelling of "quaters" to quarters
1 - Minor Errata4. Top Coat and Backer0
1 - Minor Errata5. Catchment AreaRemoved (Optional Caption) from A Wind-effect on Rain
1 - Minor Errata6. E2 ObjectiveSet format as Block Quote
1 - Minor Errata6. E2 Functional RequirementFormat as block Quote.
1 - Minor Errata6.36.3 Related TopicsChanged link "Internal Moisture" to "Roof Ventilation.
2 - Editing and rearrangement9. Sheetmetal Flashings on Corrugated ProfilesRevised and renamed clause.
1 - Minor Errata14. Crest FixingCorrected minimum embedment into soft wood from 35mm to 30mm aligning with E2/AS1 and other reference in Timber Purlins