There is considerable interest in weathertightness as a result of increasing reports of leaks in relatively new buildings. BRANZ takes this issue seriously and provides the following to assist those interested.

BRANZ already has a wide range of publications on the subject of weathertightness, including a number of articles from past issues of Build and Guideline.

Weathertight Homes Resolution Service (WHRS)

The Weathertight Homes Resolution Services Act 2006 (the WHRS Act) came into force on 1 April 2007 following its enactment on 18 December 2006. The WHRS Act 2006 replaces the WHRS Act 2002. The changes in the WHRS Act are focused on getting leaky homes fixed as early as possible, settling disputes faster and enhancing consumer protection.

WHRS contacts are at www.dbh.govt.nz/weathertight-services or on the Helpline 0800 324 477.

Mould and health

There is a growing awareness of the need to keep homes dry and warm, not only to provide a comfortable environment, but to prevent the growth of mould. Mould spores are carried by air and are found everywhere. When conditions are right they will germinate and start to grow. There are thousands of different types of mould, some of which are harmless, some can be beneficial and some are potential health hazards. When dealing with leaking buildings the potential for finding mould in wall cavities is very high. It is important that the proper precautions are taken to ensure that neither workers nor building occupants are exposed to health hazards from moulds during building repairs.

The New Zealand Department of Labour, Occupational Safety and Health Bulletin No. 17 "Risks to Health From Moulds and Other Fungi" provides more information on moulds and their possible effects on health.