The addition of an interactive calculator for asymmetrical valleys constitutes the most important inclusion in this update.
The other capacity calculators have all been refined and positioned for improved usability.
|Gutter Capacity||5.4.7 Gutter Capacity Calculator|
|Valley Capacity (both symmetrical and asymmetrical)||5.5.7 Valley Capacity Calculator|
|Downpipe Capacity||5.7.3 Downpipe Capacity Calculator|
|Maximum Area Above Spreaders||5.8.1 Maximum Area Above Spreader Calculator|
|Maximum Area Above Penetrations||9.4.4 Maximum Area Above Penetration Calculator|
|Maximum Run||7.1.4 Maximum Run Calculator|
In addition, various drawings have been updated for accuracy and correctness.
The rest of this update consisted of fixing minor errors and improvements for clarity.
|Category||Clause Number (at time of update)||Clause (As of current publication)||Details|
|2 - Editing and rearrangement||1||1 Introduction||Update Revisions Message|
|1 - Minor Errata||2.1||2.1 Definitions||Added definitions for Translucent, Transparent, Opalescent, and Opaque.|
|1 - Minor Errata||3.13||3.4.5 Material Grade||Minor revision for Aluminium.|
|0 - Clause Removed||4.8||Biological Corrosion||Clause removed. 4.8.4 Lichen is now in 4.8 Paint Durability, and 4.10.9 Gutter Leaf Guard is now in 4.10 Other Causes of Corrosion.|
|2 - Editing and rearrangement||5.3.7||5.5.7 Valley Capacity Calculator||Updated calculator to support Asymmetrical Valley calculations, including dynamic illustration.|
|2 - Editing and rearrangement||5.5.2||5.8.1 Maximum Area Above Spreader Calculator||Clause edited, new clause (Downpipe Spreaders) introduced with explanatory text about spreaders. Trapezoidal illustration updated to show effective pan-depth area.|
|2 - Editing and rearrangement||5.6||5.4.2 Gutter Capacity Design||Clause renamed and moved to Types of Gutter.|
|1 - Minor Errata||5.6.2||126.96.36.199 Gutter Support Systems||Clause moved to Gutter Installation and Maintenance.|
|2 - Editing and rearrangement||5.6.3||14.18.9 Gutter Installation||Clause renamed and moved to Pre-empting Problems.|
|2 - Editing and rearrangement||5.7.1||5.8 Downpipe Spreaders||Previously removed clause, now reinstated and updated to align with the new Maximum Area Above Spreader Calculator.|
|1 - Minor Errata||5.7.2||188.8.131.52 Gutter Fall||Clause moved to Gutter Installation and Maintenance.|
|2 - Editing and rearrangement||5.7.5||5.7.3 Downpipe Capacity Calculator||Illustration updated to show effective head.|
|2 - Editing and rearrangement||5.8||5.4.7 Gutter Capacity Calculator||Rectangular Gutter illustration updated to show effective gutter area. Clause renamed to refine search results.|
|0 - Clause Removed||6.2||Acceptable Solution NZBC E2/AS1||Clause removed as it pertains to E2, which is discussed in NZBC Clause E2 External Moisture (Extract).|
|2 - Editing and rearrangement||6.2.1||6.2 Compliance||Clause promoted, replacing ES/AS1 at postion 6.2, and content of clause reviewed.|
|2 - Editing and rearrangement||7.1.4||7.1.4 Maximum Run Calculator||Trapezoidal illustration updated to show effective pan-depth area.|
|2 - Editing and rearrangement||7.4||7.4 End Laps||Drawing deleted, replaced with a reference to 14.12.1 Sealing End Laps.|
|2 - Editing and rearrangement||8.7||8.8 Profile Closures||Clause revised. Recommendations have not changed. Drawings replaced with more accurate depictions.|
|2 - Editing and rearrangement||9.4.4||9.4.4 Maximum Area Above Penetration Calculator||Trapezoidal illustration updated to show effective pan-depth area.|
|2 - Editing and rearrangement||14.11.1||14.12.1 Sealing End Laps||Drawing replaced with with more accurate depiction of correctly and incorrectly sealed end laps.|
|1 - Minor Errata||184.108.40.206||220.127.116.11 Substrate||Removed empty link.|
|4 - Clause Inserted||19.10 2021 – March||New Revision clause.|