New Zealand has had national mandatory requirements for thermal insulation in new homes since 1978. When the government introduced the performance-based New Zealand Building Code (NZBC) in 1993, these requirements were converted to performance terms for residential buildings, and new requirements were added for commercial buildings (Clause H1).
Exact Start Year
Start Year Range
Revision Schedule Explanation
All clauses of NZBC, including Clause H1, are reviewed in a five-year cycle.
|Existing Code Coverage|
Several parties ensure compliance with the building regulations: the New Zealand Department of Building & Housing, territorial governments, building consent authorities, regional authorities, building owners and licensed building practitioners.
|Compliance Checking on Design|
|Compliance Checking on Construction|
|Compliance Checking on Pre-Occupancy|
|Air Tightness testing|
|Commissioning before occupancy|
|Commissioning after occupancy|
|Compliance Software Residential|
Name of Software
BRANZ H1 Support, AccuRate NZ
BRANZ has developed calculation method tools and worksheets for the prescriptive path: http://www.branz.co.nz/H1_support. Energy Efficiency and Conservation Authority (EECA) launched a Home Energy Rating Scheme (HERS). The scheme uses a thermal simulation tool called AccuRate NZ to determine the heating and cooling energy of a house or a proposed house design.
|Compliance Software Non-Residential|
Name of Software
BRANZ H1 Support
BRANZ has developed calculation method tools and worksheets for the prescriptive path: http://www.branz.co.nz/H1_support.
|Penalties for non-compliance|
Fines can be levied for non-compliance
|Incentives and Recognition program for compliance|
Incentives for compliance include building rating programs; grants for upgrades of commercial buildings; funding for lighting programs.
|Compliance Rate monitoring|
|Compliance Rate Publicised|
|Compliance Lessons Learned|
|Compliance Energy Use Statistics|
|Compliance Rate in %|
Training of territorial authority staff is important to adequate enforcement of the provisions in Clause H1. Training takes the form of a series of seminars throughout the country, backed up by training visits to individual territorial authorities. In addition, Building Officials Institute of New Zealand offers several trainings for building surveyors, designers, and builders on building energy efficiency and how to meet requirements of the code.
|Building Materials Ratings|
The BRANZ House Insulation Guide provides thermal resistances of common building components, based on an established methodology. There are methodologies for calculating thermal resistance of materials, but materials are not labeled.
Homestar is an independent rating tool that evaluates the sustainability attributes of homes. Green Star is a national, voluntary environmental rating scheme that evaluates the environmental attributes and performance of buildings using rating tool kits applicable to each building type & function. BASE is a simple, introductory-level green building assessment for new office, retail & mixed use buildings. NABERSNZ is a voluntary rating system for energy performance of office buildings.