uPVC / uPVC-Aluminium Windows  

Internorm’s extensive selection of uPVC-Aluminium windows offers fantastic sound reduction, thermal performance and security across all designs. This impressive range is incredibly eco-friendly, with many of our uPVC-Aluminium composite windows reaching U-values as low as 0.62. 
 
Internorm understands that every home is as unique as the people that live in them, which is why our uPVC & aluminium hybrid windows are customisable in colour and design. Internorm’s expert partners can manufacture uPVC-Aluminium windows according to your desired size, style or other individual requirements. 
 
Internorm takes pride in offering a diverse range of products fitted with uPVC-Aluminium windows. Choose from our classic turn-tilt windows, or benefit from large scale glazing in other areas of your home with our balcony or patio doors. 
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KF 510 

Thermal insulation Uw as low as 0.63 W/(m2K) 
Noise reduction up to 46 dB 
Security RC2, RC3 
Locking fully integrated 
Construction depth 90/93 mm 
The particularly slim and modern frame of the KF 510 results in an even larger area of glazing to allow maximum light transmission and improved living. The fully integrated I-tec Secure system provides enhanced security thanks to the patented flap mechanism, which presses into all four sides of the frame when locking, making it virtually impossible to lever the window. The concealed hardware also makes it easy to clean, and combined with I-tec Insulation and I-tec Glazing, the new KF 510 offers the ideal window solution. 

KF 520 

Thermal insulation Uw as low as 0.63 W/(m2K) 
Noise reduction up to 46 dB 
Security up to RC2, RC3 
Locking fully integrated 
Construction depth 90/93 m 
Ideal for modern architecture, this innovative window system looks like fixed glazing from the outside but functions like a normal window. The revolutionary I-tec Secure can achieve the highest RC3 security rating, making it one of the most secure windows on the market. 
 
 
 
 
 

KV 440 with integrated blinds 

Thermal insulation Uw as low as 0.64 W/(m2K) 
Noise reduction up to 45 dB 
Security up to RC1N, RC2 
Locking concealed 
Construction depth 93 mm 
With the KV 440, the blind is fully integrated between accessible glass panes and is therefore protected from wind, rain and dirt, whilst still offering outstanding thermal performance with I-tec Insulation. Available with Venetian, Roman and Duette blinds in a selection of colours, the KV 440 offers privacy and sun protection, even for renovations or facades where roller shutters are not possible. The I-tec Shading option offers operation of the blinds via a photovoltaic module using solar energy, therefore not requiring an external power source. 

KV 350 with Integrated Blinds 

Thermal insulation Uw as low as 0.79 W/(m2K) 
Noise reduction up to 44 dB 
Security up to RC1N, RC2 
Locking concealed 
Construction depth 74 m 
This stylish and slim window, with a construction depth of only 74mm, benefits from integrated, accessible blinds between glass panes. Providing sun protection and privacy, and available with different blind options, the KV 350 can be perfectly matched with the KF 310 uPVC-Aluminum window. The 6-chamber frame profile, combined with the I-tec Glazing, offers improved thermal performance, noise reduction, as well as protection from damp entering the cavities. 
 

KF 410 

Thermal insulation Uw as low as 0.62 W/(m2K) 
Noise reduction up to 47 dB 
Security up to RC1N, RC2 
Locking concealed 
Construction depth 90/93 mm 
The popular KF 410 is available in all four design styles and is therefore suitable for all types of architecture. I-tec Insulation, which includes insulating granulate that evenly fills the hollow chambers, provides considerable improvement in thermal performance. Also available with I-tec Ventilation to achieve ideal room temperature and living conditions. 
 
 
 

KF 310 

Thermal insulation Uw as low as 0.69 W/(m2K) 
Noise reduction up to 45 dB 
Security up to RC1N, RC2 
Locking concealed 
Construction depth 71/74 m 
This sleek window features our proven Internorm technology and provides exceptional thermal insulation and noise reduction performance. The KF 310 is also available as a balcony or patio door with an integrated Juliet balcony. Choose from a wide selection of aluminium colours, glazing and handle options. 
 
 
 
 

Windows with Integrated Blinds 

Despite the profiled edges of window sash and frame, window KV 350 with integrated blinds is a very narrow 
window and features four main advantages: as well as the best sound reduction and thermal insulation, sun and privacy protection are also integrated in the window. This helps with cleaning - the blind is protected by glass panes from wind, bad weather and dirt. Sun protection is now also available in refurbishments or on facades, even if they do not permit roller shutters. I-tec Shading works fully energy self-sufficiently and offers many other useful functions.