COP v3.0:revision-history; 2022-april

19.2 2022 – April 

The following revisions to the NZ Metal Roof and Wall Cladding Code of Practice were published on 1 April 2022.

Change in recommendation:

4.9.1 Dissimilar Metals: Gutters and spouting made from materials which are incompatible with the roof cladding to include special provisions such as a gap between spouting and fascia, using leaf deflectors, and considering low fronted spouting.

Revised clauses:

  • 8.3 Flashing Cover: Revision of the minimum requirements for flashing cover in the Metal Roofing Code of Practice. Drawings have been updated and a category C added for SED Wind Zones up to 60 m/s on all pitches.
  • 10.10 Ventilation Pathways has completely revised for clarity. The revision includes a new recommendation to provide additional ventilation for trough or tray section roofs.

The rest of the updates consisted of minor changes, editing, and new drawings for 14 Installation, without any changes in recommendations.

19.2A Revision Detail - 2022 - April

CategoryClause Number (at time of update)Clause (As of current publication)Details
3 - Substantial change to recommendation4.9.1, 4.10.14.9.1 Dissimilar MetalsChange of recommendation for spouting and roof cladding made from incompatible material.
3 - Substantial change to recommendation8.38.3 Flashing CoverClause has been completely revised.
3 - Substantial change to recommendation10.110.10 Ventilation PathwaysClause revised for clarity.
2 - Editing and rearrangement11 IntroductionUpdate Revisions Message
1 - Minor Errata2.1, 2.12.1 DefinitionsAdded defintion for SED Wind Zone.
2 - Editing and rearrangement3.15, 3.133.15 Profile ShapeInserted new Drawing: Profile Types –
2 - Editing and rearrangement5.3.75.3.7 Gutter Capacity CalculatorEnabled Profile Description Field to describe product.
1 - Minor Errata5.4.75.4.7 Valley Capacity CalculatorStandardise internal structure - no user facing or operational changes.
1 - Minor Errata5.6.35.6.3 Downpipe Capacity CalculatorStandardise internal structure - no user facing or operational changes.
2 - Editing and rearrangement5.7.15.7.1 Maximum Area Above Spreader CalculatorEnabled Profile Description Field to describe product.
2 - Editing and rearrangement7.1.47.1.4 Maximum Run CalculatorEnabled Profile Description Field to describe product.
2 - Editing and rearrangement8.3.28.2.1 Flashing EdgesCopy moved from 8.3 Flashing Cover to this clause.
4 - Clause Inserted 8.3.1 Apron UpstandsNew clause created from 8.3 Flashing Cover.
4 - Clause Inserted 8.3.2 ClearancesNew clause created from 8.3 Flashing Cover.
4 - Clause Inserted 8.3.3 Ridging and Other Transverse FlashingsNew clause created from 8.3 Flashing Cover.
1 - Minor Errata8.4.4.48.4.4.4 Eaves FlashingCorrected reference typo E1/AS1 to E2/AS1.
2 - Editing and rearrangement9.4.49.4.4 Maximum Area Above Penetration CalculatorEnabled Profile Description Field to describe product.
1 - Minor Errata10.10.1.210.10.1.2 Fascia VentsGrammar fix.
4 - Clause Inserted 10.10.1.4 Vented Soft EdgeNew clause.
2 - Editing and rearrangement10.10.110.10.1 Methods of VentilationClause renamed.
1 - Minor Errata10.10.210.10.2 BattensGrammatical fix for clarity.
4 - Clause Inserted 10.10.3 Applied FleecesNew Clause.
2 - Editing and rearrangement14.13.214.13.2 ScrewsUpdated drawings: 14.13.2D Screw Gauge and 14.13.2E Threads per Inch (TPI).
2 - Editing and rearrangement14.1614.16 Stop-endsDrawings updated: 14.16A Dog-eared Stop-ends, 14.16B Pull-up Stopends, and 14.16C Corrugate Stop-ends.
2 - Editing and rearrangement14.1714.17 Turndowns (Drip Forming or Drip Edging) UPdated drawing: 14.17A Profile Turndown
2 - Editing and rearrangement14.19.114.19.1 Roof Cladding DamageDrawing updated: 14.19.1A Sealed and Riveted Saddle
2 - Editing and rearrangement14.3.114.3.1 UnloadingDrawing updated: 14.3.1A Sling with Spreader Bar.
2 - Editing and rearrangement14.614.6 Walking On RoofsDrawings updated: 14.6A Walking in the Pan and 14.6B Spreading Weight over two Ribs.
4 - Clause Inserted 19.2 2022 – AprilRevision message – April 2022.