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Reports

Report of the Overview Group on the Weathertightness of Buildings (Hunn Report) 31 Aug 2002

In February 2002, the BIA appointed a Weathertightness Overview Group to inquire into the weathertightness of buildings in New Zealand, and in particular the concerns regarding housing that is leaking and causing decay. The subsequent report - Report of the Overview Group on the Weathertightness of Buildings (commonly referred to as the Hunn Report into Weathertightness), identified a number of factors that have contributed to leaky buildings. Containing twenty-five recommendations that addressed and aimed to remedy the systemic failures within the building industry that had led to the weathertightness crisis, the Hunn report provided a blueprint for change across the industry.

The report is available here as four individual files.

Report on the Building Industry Summit on Weathertightness November 2002

One of the recommendations of the Report of the Overview Group on the Weathertightness of Buildings prepared for the Building Industry Authority (BIA) was for consideration to be given to:
“… convening a meeting of leaders of the building industry and associated sectors to discuss the issue of weathertightness, to explore the means by which the current disturbing trends can be halted and to agree on actions which might be taken to improve the performance of the sector in future.”
A meeting of industry representatives from the wider building industry was convened by the BIA, on behalf of the Minister of Internal Affairs, on 11 October 2002.

Submission to the Inquiry into the Weathertightness of Buildings in New Zealand

Minister of Internal Affairs' submission to the Parliamentary Inquiry into the Weathertightness of Buildings in New Zealand.

Report of the Government Administration Committee's inquiry into the weathertightness of buildings in NZ 

“This inquiry arose because some New Zealand homeowners have suffered significant problems caused by leaky buildings. Some of these people presented their stories to us which provided the committee with an insight into the difficulties individuals have faced as a result of owning and living in a leaking, and sometimes, rotting home. These people gave us their views as to the cause of their problems and have made some worthwhile suggestions for resolving the weathertightness problems that now confront existing and future homeowners. While the findings of this inquiry will not directly resolve the individual issues of the homeowners who made submissions to this inquiry, the issues they raised have identified areas within New Zealand’s building control regime that require immediate review.”

Government Administration Committee's 2001/02 Financial Review of the BIA March 2003

Proposed Changes to B2/AS1 - Report to Building Industry Authority, Nov 2003v

The report submitted to the BIA on the proposed changes to B2/AS1 (Durability) is available below. The Report contains ten reference documents, available here as individual PDF files:

  • Appendix A: NZS 3602 Comparative Table 1 [PDF 90 KB, 3 pages]
  • Appendix B: Definitions [PDF 28 KB, 2 pages]
  • Appendix C: B2 Durability Working Group - Members [PDF 24 KB, 2 pages]
  • Appendix D: B2 Durability Working Group - Final Minutes [PDF 100 KB, 11 pages]
  • Appendix E: B2 Durability Regulatory Impact Statement [PDF 108 KB, 15 pages]
  • Attachment 1: BIA Report on B2/AS1 Comments Received [PDF 508 KB, 47 pages]
  • Attachment 2: Risk Matrix Approach considering Weathertightness and Durability [PDF 476 KB, 20 pages]
  • Attachment 3: Report on E2/AS1 Risk Matrix and WHRS Data [PDF 672 KB, 30 pages]
  • Attachment 4: BIA / NZIER Update on Cost Benefit Analysis [PDF 328 KB, 44 pages]
  • Attachment 5: Proposed B2 Durability for Publication [PDF 208 KB, 7 pages]