AMS XT66 Casement Window System is a high-performance, flush-fitting aluminum window system that uses patented thermal break technology, which incorporates a multi-chamber isolator core (foam-filled or similar material), to achieve superior energy efficiency and weather resistance.
Key Features and Specifications
- Design: A flush-fitting design where the opening sash sits in line with the outer frame when closed, providing a sleek, modern, or traditional appearance depending on the finish.
- Material: The system is an aluminum window system, with profiles containing a minimum of 50% recycled content, highlighting its eco-friendly credentials.
- Thermal Performance: It uses patented thermal break technology, which often includes a "multi chamber isolator core" to enhance performance.
- U-values: Can achieve U-values as low as 0.92 W/m²K (and even 0.86 W/m²K for the Performance Plus variant) depending on the glass selection.
- Glazing Options: The 66mm deep profile can accommodate double or triple glazed units ranging from 28mm to 48mm in thickness.
- Durability and Testing:
- Tested to BS 6375 - 1 & 2 standards for weather performance.
- Security tested to PAS 24.
- Achieved a heavy-duty, category 3 status (20,000 cycles) for repeated opening and closing.
- Achieved CEN Solutions Gold Standard Certification.
- Opening Options: Available in top hung, side hung, and parallel opening configurations.
- Finishes: A full range of RAL colours, single/twin colours, and specialised "Decoral" wood finishes are available.

