APA Casement Window System
The APA Casement Window System combines timeless design with modern thermal efficiency, providing a versatile solution for contemporary homes. Designed for smooth, secure operation, this open-out system is ideal for homeowners seeking a practical window with excellent weather protection, energy savings, and a sleek aluminium finish.
Built with high-performance thermal breaks and durable aluminium profiles, the APA Casement system delivers exceptional insulation and acoustic comfort while maintaining slim, elegant sightlines. Its outward-opening design maximises ventilation and space efficiency, making it suitable for all areas of the home — from living spaces and bedrooms to kitchens and extensions.
Every APA casement window is fabricated using sustainable materials and tested to the highest European standards, offering long-term durability, low maintenance, and outstanding all-weather performance.
For more information regarding our APA Casement Window System range, get in touch with us here.
- Frame depth: 45–70 mm thermally broken aluminium system
- Whole-window Uw value as low as 1.0 W/m²K (with triple glazing)
- Tested to PAS 24 for enhanced security performance
- Glazing thickness: up to 42 mm (double or triple glazing)
- Air permeability: Class 4 (EN 12207)
- Water tightness: Class E1200 (EN 12208)
- Wind resistance: Class C5 (EN 12210)
- Opening options: top hung, side hung, fixed light or combination units
- High acoustic insulation – up to 46 dB depending on glass type
- Single or dual-colour powder-coated finishes to Qualicoat standards
- Manufactured from recycled aluminium with eco-friendly polyamide breaks
- Concealed multi-point locking and friction hinges for smooth operation
| Thermal transmittance | Uw ≥ 0.71 (W/m²K) | |
| Acoustic insulation | Rw up to 46 dB | |
| Air permeability | Class 4 | |
| Water tightness | Class 1650 | |
| Wind resistance | Class C5 | |
| Sections | Frame 80 mm, Sash 80 mm | |
| Polyamide bar length | 45 mm | |
| Profile thickness | Window 1.9 mm | |
| Glazing | Max. 51 mm, Min. 36 mm | |
| Maximum sash weight | 160 kg |
*Whole window U values are a combination of the frame and glazing thermal performance and as such will vary with the specification of glass utilised. Please consult with the APA technical team for more specific performance information.
