White PVC Arched Top Window Frame 900x1500mm Semi-Circular Header

Description

• Distinctive arched top design with a smooth semi-circular header that transitions seamlessly into vertical frame sections, adding architectural character to entryways, stairwells, and feature walls.
• Curved section is formed through a heat-bending process that maintains the full multi-chamber profile structure, ensuring consistent thermal performance throughout the entire frame including the radius portion.
• Lower rectangular section accommodates a standard casement or tilt-and-turn sash for ventilation, while the fixed arch above provides decorative glazing and additional light.
• Internal steel reinforcement follows both the curved and straight profile paths, providing structural continuity and rigidity across the entire frame geometry.
• Compatible with both rectangular and custom-curved double-glazed units; supplied with all necessary templates for accurate opening preparation.