uPVC-Alu: Slim Design, Strong Performance

The KF 510 offers a sleek, slim-frame design that maximises glazed surface area—filling your home with natural light and creating a bright, open interior. Its clean lines and modern form make it ideal for contemporary living.

Security is built-in with Internorm’s I-tec Secure system. This patented locking technology engages all four sides of the frame using internal flaps, providing RC3-level burglary protection and making the window exceptionally difficult to force open.

Ease of use meets design refinement with concealed hardware that enhances aesthetics and simplifies cleaning. Combined with I-tec Insulation and I-tec Glazing, the KF 510 delivers excellent thermal performance (Uw values up to 0.64 W/m²K) and sound insulation of up to 48 dB—ensuring comfort, peace, and long-term efficiency.

Features:

• Material: uPVC interior, Aluminium exterior
• Design: Particularly slim and modern frame for maximum light transmission and improved living.
• Security: Enhanced security up to RC 3 with fully integrated I-tec Secure system (patented flap mechanism locking on all four sides).
• Cleaning: Easy to clean due to concealed hardware.
• Insulation: Combines I-tec Insulation and I-tec Glazing for an ideal window solution.

Benefits:

• Maximises natural light with its slim frame design.
• Offers a sleek and modern aesthetic.
• Provides exceptional security with the I-tec Secure system.
• Ensures easy cleaning with concealed hardware.
• Offers excellent overall performance thanks to I-tec Insulation and Glazing.
• Provides excellent thermal and sound insulation.

Homeowners looking for modern, secure, and energy-efficient windows with a focus on maximising natural light and ease of maintenance.