COP v3.0:revision-history; 2018-november

19.3 2018 – November 

The NZ Metal Roof and Wall Cladding Code Practice (COP), has been updated effective 1 November 2018.

In this Update no recommendations have been altered that would require changes to existing projects in progress

Summary of Changes in this Update

  • The previous External Moisture, Flashings and Penetrations sections have been updated to closer reflect the requirements of NZBC Clause E2 – External Moisture.
    All clauses and sub-clauses in these sections have been substantially revised and drawings updated to show details more clearly.

  •  Other updates consist of Category 1 – minor errata corrections to spelling, and grammar and layout.

19.3A

CategoryClause Number (at time of update)Clause (As of current publication)Details
2 - Editing and rearrangement4.5.24.5.2 Sea SprayMoved copy dealing with corrosion from "Eaves Flashing" to "Sea Spray".
1 - Minor Errata4.11.84.11.8 MicrocrackingCorrection to comparative scale of illustrations
0 - Clause Removed6.1.17.1.1 Conduction 
4 - Clause Inserted6.1.16.1.1 E2 ObjectiveE2 Objective under NZBC Clause E2 (Extract)
4 - Clause Inserted6.1.26.1.2 E2 Functional RequirementNew clause to follow E2 Objective.
4 - Clause Inserted6.1.36.1.3 E2 Performance RequirementsNew clause to follow "Functional Requirement".
0 - Clause Removed6.17.1 HeatClause removed, see 19.3A .
4 - Clause Inserted6.16.1 NZBC Clause E2 External Moisture (Extract)New Clause under External Moisture — General.
4 - Clause Inserted6.2.16.2.1 ComplianceNew 2nd level clause to follow "Acceptable Solution NZBC E2/AS1"
0 - Clause Removed6.2.2.17.4.2.1 Profile StrengthSubject now discussed in 19.3A .
2 - Editing and rearrangement6.2.2.38.9 Flashing Expansion DetailsCompletely revised clause.
2 - Editing and rearrangement6.2.2.48.9.2 Building Expansion JointsClause duplicated.
4 - Clause Inserted6.26.2 Acceptable Solution NZBC E2/AS1New 2nd level clause to follow "Limits on Applications. "
0 - Clause Removed6.38.15 Sealing Washers 
4 - Clause Inserted6.36.3 Related TopicsNew 1st level heading under "External Moisture — General"
3 - Substantial change to recommendation6.5.27.1.2 RunoffClause completely revised.
0 - Clause Removed6.5.37.2.3 SnowClause removed, combined with 19.3A .
0 - Clause Removed6.5.47.2.4 HailClause removed combined with 19.3A .
2 - Editing and rearrangement66 External Moisture OverviewClause completely revised to reflect all four COP clauses dealing with E2 External Moisture.
3 - Substantial change to recommendation7.1.17.1.1 Minimum Roof Cladding PitchClause completely revised.
0 - Clause Removed7.17.1 Radiation 
0 - Clause Removed7.18.1 PurposeClause removed, included in 19.3A .
2 - Editing and rearrangement7.2.18.1.1 Flashing DurabilityCompletely revised and renamed clause renamed (previously "compatibility").
0 - Clause Removed7.27.2 Convection 
2 - Editing and rearrangement7.27.1 Roof PitchClause completely revised. To be the first sub-clause under External Moisture — Cladding.
2 - Editing and rearrangement7.28.1 Flashing MaterialsCompletely revised clause
4 - Clause Inserted7.27.2 Fastening RoofingNew sub-clause to be inserted at the end of Roof Pitch under External Moisture — Cladding.
3 - Substantial change to recommendation7.3.17.3.1 Temperature RangeCompletely Revised and rewritten. To follow "Thermal Expansion and Contraction" under the new level 1 Clause: "Cladding"
4 - Clause Inserted7.3.18.3.1 Flashing LapsCompletely revised and shortened clause.
3 - Substantial change to recommendation7.3.27.3.2 Roof Cladding Expansion ProvisionsCompletely Revised and Rewritten. To follow "Steel Cladding Temperature Ranges" in "Thermal expansion and Contraction" under new Level 1 Clause: "Cladding".
2 - Editing and rearrangement7.37.3 Thermal Expansion And ContractionCompletely revised and redone. To be moved under new level 1 Clause: External Moisture Cladding.
0 - Clause Removed7.4.1.18.6.1.1 Ridge - Hip IntersectionsClause incorporated into 19.3A .
2 - Editing and rearrangement7.4.28.4.2 Barge And VergeCompletely revised clause.
0 - Clause Removed7.4.2.18.6.2.1 Internal Barge FlashingIncorporated into parent clause.
2 - Editing and rearrangement7.4.2.28.4.2.1 Ridge – barge IntersectionsCompletely revised clause.
2 - Editing and rearrangement7.4.48.4.4 Apron FlashingsCompletely revised clause
2 - Editing and rearrangement7.4.4.18.4.4.1 Parapet And Apron Capping TerminationsCompletely revised clause.
2 - Editing and rearrangement7.4.4.38.4.4.3 Step ApronCompletely revised clause. Drawings updated.
2 - Editing and rearrangement7.4.4.48.4.4.4 Eaves FlashingCompletely revised and renamed clause. (Previously "Gutter Apron"). Drawing updated.
0 - Clause Removed7.4.58.6.5 Valley FlashingsClause removed. Valleys are discussed in "Roof Drainage".
2 - Editing and rearrangement7.4.68.4.5 Curved FlashingsCompletely revised clause.
2 - Editing and rearrangement7.4.6.18.4.5.1 Lockseamed FlashingsRevised clause. Information added.
0 - Clause Removed7.4.6.28.6.6.2 Jennied FlashingsClause removed — all references to "jennying" has been removed from "Flashings".
4 - Clause Inserted7.4.6.38.4.5.2 Crimped FlashingsNew clause under 19.3A .
0 - Clause Removed7.4.78.6.7 Soffit FlashingsClause removed.
2 - Editing and rearrangement7.47.4 End LapsClause completely revised.
2 - Editing and rearrangement7.48.4 Flashing TypesThe last line edited.
0 - Clause Removed7.5.18.12.1 Unpainted Metal CladdingClause removed.
0 - Clause Removed7.5.28.12.2 Ventilation and CavitiesClause removed.
0 - Clause Removed7.5.38.12.3 Window and Door Flashings in Metal Cladding 
0 - Clause Removed7.5.48.12.4 Horizontal Metal Cladding 
0 - Clause Removed7.5.58.12.5 General Principles 
0 - Clause Removed7.5.68.12.6 Flush Window FlashingsClause removed.
0 - Clause Removed7.5.78.12.7 Recessed Window FlashingsClause removed.
0 - Clause Removed7.5.88.12.8 Butt Window FlashingsClause removed.
0 - Clause Removed7.5.98.12.9 Flashings For Vertical Cladding 
0 - Clause Removed7.5.108.12.10 Alternative Flashing Designs 
2 - Editing and rearrangement7.58.10 Metal Wall Cladding FlashingsCompletely revised and renamed clause.
0 - Clause Removed7.68.13 Flashings For Vertical CladdingClause removed.
0 - Clause Removed7.78.14 Flashings For Horizontal Corrugate CladdingClause Removed.
2 - Editing and rearrangement7.8.18.5.1 Primary FastenersCompletely revised and shortened clause.
2 - Editing and rearrangement7.8.28.5.2 Secondary FastenersCompletely revised clause.
0 - Clause Removed7.8.38.7.3 Secret Fixing ClipsClause deleted.
2 - Editing and rearrangement7.8.48.5.3 Flashing Cleats 
4 - Clause Inserted7.8.58.5.4 SeamsSplit the drawing into eight individual drawings, for improved layout.
2 - Editing and rearrangement7.88.5 Fastening FlashingsClause renamed.
0 - Clause Removed7.9.18.8.1 PropertiesClause removed. Discussed in 19.3A .
2 - Editing and rearrangement7.9.28.6.1 Methods Of SealingRevised clause
2 - Editing and rearrangement7.9.38.6.2 Surface PreparationClause shortened.
0 - Clause Removed7.9.58.8.5 Sealed LapsClause removed see: 19.3A .
0 - Clause Removed7.9.68.8.6 Strip SealantsClause removed.
0 - Clause Removed7.9.78.8.7 Soldered JointsClause Removed.
2 - Editing and rearrangement7.98.6 SealantsCompletely revised clause.
0 - Clause Removed7.10.18.9.1 Vented Fillers 
2 - Editing and rearrangement7.10.28.7.1 Soft EdgingRevised and renamed clause.
2 - Editing and rearrangement78 External Moisture FlashingsCompletely revised clause.
4 - Clause Inserted77 External Moisture RoofingNew Level 1 clause.
0 - Clause Removed8.19.1 GeneralClause removed. General discussion incorporated in the introduction.
2 - Editing and rearrangement8.2.19.2 Additional SupportCompletely revised and renamed clause.
2 - Editing and rearrangement8.2.29.3 Penetration DurabilityCompletely revised and renamed clause.
0 - Clause Removed8.2.39.5 CorrosionIncorporated into "19.3A ".
0 - Clause Removed8.2.49.5.1 CatchmentClause removed.
0 - Clause Removed8.2.59.5.2 ObstructionClause removed.
0 - Clause Removed8.2.69.5.3 Discharge CapacityClause removed, see 
0 - Clause Removed8.2.79.5.4 SealingClause removed. (Information is repeated in 19.3A )
0 - Clause Removed8.2.89.5.5 Alternative MaterialsClause removed, see 19.3A .
2 - Editing and rearrangement8.28.2 Flashing DesignCompletely revised and shortened clause
2 - Editing and rearrangement8.29.1 Penetrations Minimum PitchCompletely revised and renamed clause.
0 - Clause Removed8.3.19.7.6 NomenclatureClause removed. More details added in 19.3A .
0 - Clause Removed8.3.29.7.7 Diverter Or Cricket DesignsClause removed in favour of more detailed drawings in Penetration Flashing Design.
0 - Clause Removed8.3.39.7.8 Penetration Flashing InstallationClause removed in favour of more detailed drawings in "Penetration Flashing Design".
0 - Clause Removed8.3.49.7.9 LapsClause removed, see 19.3A .
0 - Clause Removed8.3.59.7.10 DetailsClause removed. See 19.3A .
0 - Clause Removed8.3.79.7.11 Type A Soaker 
0 - Clause Removed8.3.89.7.12 Type B WatershedClause removed. New Details available.
0 - Clause Removed8.3.99.7.13 Type C TaperedClause removed. New flashing details provided.
0 - Clause Removed8.3.109.7.14 Type D TrayClause removed. New Flashing details provided elsewhere.
2 - Editing and rearrangement8.38.3 Flashing CoverCompletely revised clause. Drawings updated for clarity.
2 - Editing and rearrangement8.39.5 Penetration DesignRevised clause.
2 - Editing and rearrangement8.4.19.6.2.1 Plant Room And Conduit PenetrationsCompletely revised clause.
2 - Editing and rearrangement8.48.3.2 Flashing EdgesCompletely revised clause. Drawings updated.
2 - Editing and rearrangement8.5.18.4.1 Ridge And HipCompletely revised clause.
2 - Editing and rearrangement8.5.38.4.3 Parapet CappingsCompletely revised clause.
3 - Substantial change to recommendation8.5.4.28.4.4.2 Change Of PitchCompletely revised clause. Drawings updated.
0 - Clause Removed8.59.9 Dormer JunctionsClause removed.
4 - Clause Inserted8.7.38.6.3 Sealant Extrusion And PlacementUpdated drawing: "Applying Sealant".
4 - Clause Inserted8.8.28.7.2 Notched EdgingNew Clause to follow "Soft Edging", under "Profile Closures". 
2 - Editing and rearrangement8.88.7 Profile ClosuresCompletely revised clause.
4 - Clause Inserted8.98.8 Flashing BucklingInserted new clause.
4 - Clause Inserted8.3219.3 2018 – NovemberNovember Update Message added
2 - Editing and rearrangement89 External Moisture PenetrationsCompletely revised and renamed clause.
4 - Clause Inserted9.39.2.1 Penetrations SafetyNew sub-clause under "Additional Support".
4 - Clause Inserted9.5.19.4 Penetration PositioningNew Clause.
4 - Clause Inserted9.5.29.5.1 Sheetmetal Penetration FlashingsNew Clause.
4 - Clause Inserted9.5.39.5.2 Watershed Back FlashingsNew Clause
4 - Clause Inserted9.5.49.5.3 Soaker Back FlashingsNew Clause
4 - Clause Inserted9.5.59.5.4 Curb DesignNew Level 2 Clause.
4 - Clause Inserted9.5.5.19.5.4.1 Level Back CurbsNew level 3 Clause under 19.3A .
4 - Clause Inserted9.5.5.29.5.4.2 Arrowhead Back CurbsNew 3rd level clause under 19.3A .
4 - Clause Inserted9.5.5.39.5.4.3 Cricket Back CurbsNew level 3 Clause under 19.3A .
2 - Editing and rearrangement9.5.69.5.5 Sheetmetal Flashing DrawingsRevised and renamed clause.
4 - Clause Inserted9.6.19.6.1 Boot Flashings to an Over FlashingNew Clause
4 - Clause Inserted9.6.29.6.2 Other Applications for Boot FlashingsNew Clause
4 - Clause Inserted9.6.2.29.6.2.2 Mechanical ServicesNew clause
2 - Editing and rearrangement9.69.6 Boot FlashingsRevised and renamed clause.
4 - Clause Inserted9.79.6.3 Flush PenetrationsNew clause
2 - Editing and rearrangement16.717.7 Wind and Point Load Testing