Description

Under H1, recessed aluminium joinery systems offer enhanced thermal alignment with wall insulation, reducing thermal bridging and improving compliance with minimum construction R-values for energy-efficient building envelopes.

Scope

This article covers: 

• At a glance:
  • Traditional joinery installation can lead to significant heat loss.
  • Recessed joinery improves thermal performance and building efficiency.
  • Proprietary recessed systems align insulation and glazing for better results.
  • Some systems are certified, while others require Alternative Solution consent.
  • Ongoing research aims to enhance thermal and weathertight performance.

Window and door joinery must comply with several Building Code clauses. As it is a component of the building’s exterior envelope, compliance with clauses B2 Durability and E2 External moisture as well as clause H1 is a key consideration.

• Traditional aluminium joinery installation
• Recessed aluminium joinery
• Three recessed joinery systems
  • System A window installation
  • System B window installation
  • System C window installation
•  BRANZ testing