BU670 Specifying windows and doors under H1
- Abbreviation
- BU670(2022)
- Valid from
- 1/10/2022
- Information provider
- BRANZ Limited,
- Information type
- BRANZ Bulletin,
- Format
- HARD COPY, PDF, PDF,
Description
Many windows and glazing systems that complied with the 4th edition will no longer meet the new requirements.
This bulletin guides architects and designers in understanding and specifying windows and doors that comply with the 5th edition of H1/ AS1 and H1/VM1.
The 5th edition of compliance documents for Building Code clause H1 Energy Efficiency significantly increases minimum thermal performance requirements.