BU659 Upgrading the Thermal Performance of Timber windows

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Abbreviation: BU659(2021)
Valid from: 1/02/2021

Information provider: BRANZ Limited,
Information type: BRANZ Bulletin,
Format: PDF,

Description

This bulletin describes approaches for upgrading thermal performance including reducing air infiltration, replacing ordinary single glazing and retrofitting insulating glass units (IGUs).

Around a million houses in New Zealand have timber-framed windows, most with single glazing. These windows can have problems with draughts, poor thermal performance and poor solar control.

Scope

The bulletin covers:

Considerations for upgrading thermal performance
Glass options
Insulating glass units (IGUS)
Reducing drafts around windows
Retrofitting IGUS into existing timber sashes
Retrofitting double-glazed UPVC or Aluminium windows

For assistance with locating previous versions, please contact the information provider.

Notes/comments

This bulletin updates and replaces Bulletin 507 Timber windows – retrofit glazing options for thermal improvement.

View on Information Provider website Download this resource (PDF, 964KB)

For assistance with locating previous versions, please contact the information provider.

This bulletin updates and replaces Bulletin 507 Timber windows – retrofit glazing options for thermal improvement.

This resource is not cited by any other resources.