Specifications

Profile wall thickness

outer frame and sash 1.4 mm, bottom rail 1.8 mm

Frame width

two-track 74 mm, three-track 110 mm

Sightline

middle meeting rail 32 mm

Standard glass

5+9A+5 (fluorocarbon-coated aluminium spacer)

Glazing method

Double glazed unit: 5 mm glass / 9 mm air / 5 mm glass

Certification

AS 2047, AS 1288, NCC 2022. Report AZHK260411.

Performance

• 3.52W/m²K

  U-value (Uw)

  Whole-of-window thermal transmittance.

• 450Pa

  Water resistance

  Tested for protection in heavy rain.

• 5.0kPa

  Wind pressure

  Serviceability under design wind load.

• Rw 30

  Acoustic rating

  Weighted sound reduction across the system.

• 1000Pa

  Wind pressure (SLS)

  Serviceability: everyday strong wind, with the system still operating normally.

• 3000Pa

  Wind pressure (ULS)

  Ultimate: the once-in-decades storm the system is tested not to fail under.

Figures are from manufacturer testing and vary with configuration and glazing. Project-specific results are confirmed at quotation.