The Double Hung Window System combines timeless aesthetics with modern engineering, offering exceptional ventilation flexibility and easy maintenance. Both upper and lower sashes can slide vertically, allowing users to control airflow precisely while maintaining superior energy efficiency and weather sealing.
Specifications
Thermally broken aluminum window system with double glazing and multi-layer sealing, providing excellent thermal insulation, airtightness, water resistance, and durability for residential and commercial use.
Width ≤1500mm / Height ≤1200mm
1.8mm
100mm
≤100kg
750pa
Positive pressure Up to Level 8 / Negative pressure Up to Level 8
<6000pa
≥0.25 Btu/(hr x ft² x ºF)
Flexible Ventilation
The Double Hung Window System allows both the upper and lower sashes to move vertically, providing flexible ventilation options.
Superior Energy Efficiency
Equipped with multi-layer brush seals and optional double glazing, this system effectively minimizes air leakage and heat transfer.
Classic Design with Easy Maintenance
Featuring a timeless vertical symmetry, the Double Hung Window System blends seamlessly with traditional or modern facades.
Frame Options
The Double Hung Window System uses high-strength aluminum profiles with precise extrusion technology, ensuring excellent structural stability and smooth vertical operation. Its dual-sash balancing design allows both sashes to move effortlessly while maintaining long-term durability.
DHWS100
Engineered with multi-layer brush and EPDM rubber seals, the system offers outstanding air tightness, water resistance, and insulation performance. Optional thermal break profiles and integrated drainage channels further enhance energy efficiency and protection in all weather conditions.
Aluminum frames come in various colors and finishes, seamlessly matching any design. Powder-coated and anodized surfaces ensure lasting aesthetics and low
Glass Options
We provide various glazing options to suit different project needs, balancing performance, aesthetics, and budget.
Double Glazing
Double glazing can withstand greater wind pressure in high-rise apartment buildings, ensuring safety and stability while effectively reducing external noise for a quiet living environment.
Triple Glazing
Triple glazing is widely used in buildings located in cold or noisy environments. Compared to double glazing, it offers better insulation, energy efficiency, and soundproofing. It helps reduce heating and cooling costs and creates a quieter, more comfortable indoor space.
Other Options
Screen Options
We offer a wide range of insect screen solutions including vertical roller, horizontal sliding, pleated, and framed types—each tailored to suit different spaces and usage needs. Whether for bedroom or kitchen windows, or large balcony and patio doorways, our screens provide both functionality and aesthetic appeal.
FAQ
Frequently asked questions about aluminum awning windows, covering performance, safety, and usability.
Are Double Hung Windows suitable for Queensland’s climate?
Yes. Double Hung Windows are ideal for Queensland’s warm and humid climate. Their dual-sash ventilation design allows you to control airflow efficiently, improving indoor comfort and reducing reliance on air conditioning.
Do Double Hung Windows meet Queensland energy efficiency standards?
Absolutely. When fitted with double glazing and thermal break aluminum frames, our system meets or exceeds NCC (National Construction Code) energy efficiency requirements, helping homeowners achieve better insulation and lower energy costs.
How do I maintain Double Hung Windows in coastal or tropical areas?
In Queensland’s coastal and tropical environments, occasional cleaning of window tracks and applying corrosion-resistant lubricant to balance mechanisms will ensure long-term smooth operation and durability.
Cases
Relevant Blog Post
Specifying Double Hung Windows for Residential Builds: Compliance, Performance, and Design Benefits
Double hung windows provide a vertically sliding, dual-sash solution that delivers controlled cross-ventilation, low outward projection and robust compliance potential for Australian residential...