SR366 A building pathology system in New Zealand - what is possible? (March 2017)

This report explores the feasibility of implementing a building pathology approach to monitoring building defects in New Zealand. The focus of this research is on residential buildings.

This research focuses on a consideration of the value and benefits of a building pathology approach that involves repurposing and reanalysing existing data. There is existing data that can provide evidence regarding potential or actual building failures. This report identifies and describes those relevant information sources. We propose a possible systematic approach for utilising the evidence currently available. It is not about collection of new data. We consider this the most pragmatic approach.

This research also considers the extent to which information regarding future trends in housing defects can be utilised. Specifically, information on construction methods, building design and materials and sector capacity and capability has been considered.

Five methodological options are described for how we might use currently available data. The preferred option is for a comprehensive, wide-ranging baseline study of housing defects and/or failures augmented by detailed, focused case studies where required. It is recommended that a pilot study be undertaken to test the proposed methodology. This will enable finalisation of the necessary analytical framework. It will also provide us with the opportunity to gain stakeholder buy-in for a more expansive, longitudinal model, which will serve us well in the long term.