NZBC
New Zealand Building Code (NZBC) Requirements
Clause B2 Durability Objective
B2.1: The objective of this provision is to ensure that a building will throughout its life continue to satisfy the other objectives of the code.
Functional Requirement
B2.2: Building materials, components and construction methods shall be sufficiently durable to ensure that the building, without reconstruction or major renovations, satisfies the other functional requirements of the code throughout the life of the building.
Performance
B2.3: From the time a code compliance certificate is issued, building elements shall with only normal maintenance continue to satisfy the performances of this code for the lesser of the specified intended life of the building, if any, or:
- For the structure, including building elements such as floors and walls, which provide structural stability: the life of the building being not less than 50 years.
- For the services to which access is difficult, and for hidden fixings of the external envelope and attached structures of a building:the life of the building being not less than 50 years.
- For the fixings of the building envelope and attached structures, the building envelope, lining supports and other building elements having moderate ease of access but which are difficult to replace: 15 years.
- For linings, renewable, protective coatings, fittings and other building elements to which there is ready access: 5 years.
(Source: Building Regulations 1992)
British PlasterBoard Drywall as a General Lining
The NZBC durability requirement under clause B2.3 c) and d) for general linings is between 5 or 15 years depending on the ease of replacement.
British PlasterBoard Drywall Systems, used as general lining, including adhesive fixing when using an adhesive recommended by the manufacturer for this application, satisfy the 15 year durability requirements of the NZBC.
British PlasterBoard systems fixed mechanically using only screws or nails achieve a 50 year durability performance.