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Warmer drier healthier #3 - A proposed airtightness target for New Zealand dwellings

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Abbreviation
BRANZ Research Now - Warmer drier healthier #3
Valid from
1/12/2020
Information provider
BRANZ Limited,
Information type
Research report,
Format
PDF,
Description

There is ongoing discussion about whether there should be a target level of airtightness for our buildings in New Zealand.

Based on research, BRANZ recommends building new houses and apartments to an optional target of three air changes per hour at 50 pascals pressure (3 ach @ 50 Pa), with whole-dwelling mechanical ventilation installed to address underventilation.

If the requirements for thermal efficiency in the New Zealand Building Code are upgraded in future, changes to the ventilation and airtightness requirements should be considered at the same time. More performance testing is also encouraged.

Scope

This publication includes:

  • Airtightness in existing dwellings
  • Regulations in New Zealand and overseas
  • Underventilation in New Zealand dwellings
  • Airtightness, ventilation and heat recovery
  • Discussion

 

For assistance with locating previous versions, please contact the information provider.
View on Information Provider website Download this resource (PDF, 874KB)
For assistance with locating previous versions, please contact the information provider.
This resource is not cited by any other resources.

Warmer drier healthier #3 - A proposed airtightness target for New Zealand dwellings

This document is not CITED BY any other resources:

Warmer drier healthier #3 - A proposed airtightness target for New Zealand dwellings

Description

There is ongoing discussion about whether there should be a target level of airtightness for our buildings in New Zealand.

Based on research, BRANZ recommends building new houses and apartments to an optional target of three air changes per hour at 50 pascals pressure (3 ach @ 50 Pa), with whole-dwelling mechanical ventilation installed to address underventilation.

If the requirements for thermal efficiency in the New Zealand Building Code are upgraded in future, changes to the ventilation and airtightness requirements should be considered at the same time. More performance testing is also encouraged.

View on Information Provider website Download this resource (PDF, 874KB)
Warmer drier healthier #3 - A proposed airtightness target for New Zealand dwellings
Description

There is ongoing discussion about whether there should be a target level of airtightness for our buildings in New Zealand.

Based on research, BRANZ recommends building new houses and apartments to an optional target of three air changes per hour at 50 pascals pressure (3 ach @ 50 Pa), with whole-dwelling mechanical ventilation installed to address underventilation.

If the requirements for thermal efficiency in the New Zealand Building Code are upgraded in future, changes to the ventilation and airtightness requirements should be considered at the same time. More performance testing is also encouraged.

View on Information Provider website Download this resource (PDF, 874KB)
This resource does not cite any other resources.

Warmer drier healthier #3 - A proposed airtightness target for New Zealand dwellings

This resource does not CITE any other resources.
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