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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:

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:

  • 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.
  • 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 Installation, without any changes in recommendations.

Revision Detail - 2022 - April

CategoryClause Number (at time of update)Clause (As of current publication)Details
3 - Substantial change to recommendation4.9.1, 4.10.1Dissimilar Metals Change of recommendation for spouting and roof cladding made from incompatible material.
3 - Substantial change to recommendation8.3Flashing Cover Clause has been completely revised.
3 - Substantial change to recommendation10.1Ventilation Pathways Clause revised for clarity.
2 - Editing and rearrangement1Introduction Update Revisions Message
1 - Minor Errata2.1, 2.1Definitions Added defintion for SED Wind Zone.
2 - Editing and rearrangement3.15, 3.13Profile Shape Inserted new Drawing: Profile Types –
2 - Editing and rearrangement5.3.7Gutter Capacity Calculator Enabled Profile Description Field to describe product.
1 - Minor Errata5.4.7Valley Capacity Calculator Standardise internal structure - no user facing or operational changes.
1 - Minor Errata5.6.3Downpipe Capacity Calculator Standardise internal structure - no user facing or operational changes.
2 - Editing and rearrangement5.7.1Maximum Area Above Spreader Calculator Enabled Profile Description Field to describe product.
2 - Editing and rearrangement7.1.4Maximum Run Calculator Enabled Profile Description Field to describe product.
2 - Editing and rearrangement8.3.2Flashing Edges Copy moved from Flashing Cover to this clause.
4 - Clause Inserted Apron Upstands New clause created from Flashing Cover.
4 - Clause Inserted Clearances New clause created from Flashing Cover.
4 - Clause Inserted Ridging and Other Transverse Flashings New clause created from Flashing Cover.
1 - Minor Errata8.4.4.4Eaves Flashing Corrected reference typo E1/AS1 to E2/AS1.
2 - Editing and rearrangement9.4.4Maximum Area Above Penetration Calculator Enabled Profile Description Field to describe product.
1 - Minor Errata10.10.1.2Fascia Vents Grammar fix.
4 - Clause Inserted Vented Soft Edge New clause.
2 - Editing and rearrangement10.10.1Methods of Ventilation Clause renamed.
1 - Minor Errata10.10.2Battens Grammatical fix for clarity.
4 - Clause Inserted Applied Fleeces New Clause.
2 - Editing and rearrangement14.13.2Screws Updated drawings: Screw Gauge and Threads per Inch (TPI).
2 - Editing and rearrangement14.16Stop-ends Drawings updated: Dog-eared Stop-ends, Pull-up Stopends, and Corrugate Stop-ends.
2 - Editing and rearrangement14.17Turndowns (Drip Forming or Drip Edging) UPdated drawing: Profile Turndown
2 - Editing and rearrangement14.19.1Roof Cladding Damage Drawing updated: Sealed and Riveted Saddle
2 - Editing and rearrangement14.3.1Unloading Drawing updated: Sling with Spreader Bar.
2 - Editing and rearrangement14.6Walking On Roofs Drawings updated: Walking in the Pan and Spreading Weight over two Ribs.
4 - Clause Inserted 2022 – April Revision message – April 2022.
 
(optional caption)
Clause: 
019_010_000_000_000_000_000_000_000
Clause Number: 
19.10
/cop/revision-history/2022-april
Revision Category: 
4 - Clause Inserted
Revision Detail: 

Revision message April – 2022.