Darley Aluminium — 30 Year AnniversaryDarley Aluminium — 30 Year Anniversary
Windows

Double Hung Window

A classic vertical-sliding sash brought up to commercial spec — heritage proportions with modern aluminium performance.

Twin SashSingle / DoubleHeritage Look

About the system

The CityView double hung window pairs the timeless proportions of a vertical-sliding sash with a fully engineered aluminium frame — ideal for heritage-sensitive facades, schools and refurbishments that call for a traditional look without the maintenance of timber.

Both sashes slide for balanced ventilation, and the system glazes single or double to meet the project's thermal and acoustic targets.

Frame
High-strength T6 extruded aluminium — powder-coat & anodised finishes
Glazing
Single / double
Compliance
Tested to & exceeds AS 2047
Warranty
7-year commercial system warranty
Frame depth
20mm glazing pocket
Max size
1200 × 2100 mm
Water rating
300 Pa
U-value
4.9 W/m²K

Tested & certified

Structural (AS 2047)
Tested to and beyond the standard for wind and structural load.
Air Infiltration
Sealed against draughts for a tight, energy-efficient envelope.
Water Resistance
High water rating holds out driving rain on exposed facades.
Acoustic Performance
Double-glazed and laminated infills quieten the interior to high Rw.

Technical specifications

The Darley product catalogue holds the technical side of Double Hung Window — profiles, performance data and WERS ratings for the systems behind it.

Browse the full CityView catalogue
Architects, builders & fabricators

Specify CityView on your next project.

Bring the full CityView commercial suite to apartments, schools, shopfronts and offices — with technical support, compliant documentation and the backing of an Australian-made brand.

CityView Commercial Systems
Designed & engineered in
Australia