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Internorm KF 320 – The Look of Fixed Glazing, the Functionality You Need
Clean lines, a barely-there sash frame, and a genuinely contemporary finish – the KF 320 is the uPVC window for homes where design is every bit as important as performance.
- Features
- Colours
- Options
- Specifications
- Downloads
Features
Where Thoughtful Design Meets Real-World Performance
The KF 320 is built for homeowners and architects who want modern architecture done properly – striking from the outside, quiet and efficient on the inside.
Frameless External Appearance
The KF 320's glass sash has no visible frame on the outside, creating the seamless, minimal look of fixed glazing – without losing the ability to open your windows.Narrow Construction Depth
A slim profile keeps sightlines clean and maximises the glass area, making it ideal for modern homes and contemporary extensions where light and space are everything.Fully Concealed Hardware
There's nothing to interrupt the clean facade. All locking hardware is concealed within the frame, preserving the KF 320's sleek, uncluttered aesthetic throughout.Triple Glazing
With U-values as low as 0.65 W/m²K and sound reduction of up to 45 dB, the KF 320 creates a noticeably quieter, warmer home – visible performance behind a beautiful finish.Security Up to RC2
Concealed multi-point locking and optional RC2 security classification ensure that the KF 320's beautiful exterior doesn't come at the cost of your peace of mind.Powder-Coated Aluminium Exterior
The external aluminium cladding is available across a wide range of colours and surface options, offering a maintenance-free finish that holds its appearance for decades.Colours
A Colour for Every Vision
From sophisticated dark greys and stainless steel tones to crisp white and contemporary metallic finishes, the KF 320 is available in a broad palette to suit your project perfectly.
Standard
HM113
M916
HM907
HM906
HM819
HM817
HM803
HM739
HM735
HM722
HM721
HM716
HM712
HM704
HM605
HM304
Internal
FI500
FI512
FI510
FI505
FI503
FI501
Options
Flexible Configurations for Every Space
The KF 320 can be specified as a turn, turn-tilt, or tilt window, as well as fixed glazing. Shading solutions and fly screens can also be integrated, allowing you to create a tailored specification that addresses every practical need – without ever compromising the clean lines you chose the KF 320 for in the first place.
Specifications
KF 320 Technical Specifications
Full product data and technical drawings are available to download below for architects and specifiers.
Specification
Material
Thermal Insulation (Uw)
Sound Reduction
Security
Locking
External Appearance
Glazing
External Cladding
Detail
uPVC-Aluminium Composite
Up to 0.65 W/(m²K)
Up to 34–45 dB
Up to RC2
Fully Concealed
No visible sash frame
Triple Glazed
Powder-Coated Aluminium
Downloads
Technical Downloads for the KF 320
Download section details, technical data sheets, and architectural drawings for the Internorm KF 320 from the resources below.
The Architect's Choice for Clean, Contemporary Glazing
The KF 320 was designed for projects where architectural integrity matters. Its frameless external appearance – achieved through an innovative glass sash with no visible outer frame – makes it a natural fit for modern homes, extensions, and new builds where every detail has been considered.
It scores particularly highly in settings where a narrow construction depth and uninterrupted glazing lines are central to the design brief. And because it's an Internorm product, the performance behind that striking facade is equally impressive – triple glazing, concealed hardware, and security up to RC2.
Accessible Premium Quality, Installed by Camel Glass
One of the things that makes the KF 320 special is that it brings genuine Internorm quality to a broader range of projects. It's the ideal choice for quality and cost-conscious homeowners who refuse to settle for ordinary – and it's available through Camel Glass, your trusted local Internorm partner across the South West.
Our team will guide you through your colour choices, configurations, and installation options at our showrooms in Wadebridge, Redruth, Holsworthy, or Barnstaple. Free site surveys included with every supply and fit order.
Frequently Asked Questions
Have questions about the Internorm KF 320? We've answered the most common ones below – and our team is always on hand if you'd like to talk through your specific project.
Why does the KF 320 look like fixed glazing?
The KF 320 uses an innovative glass sash design with no visible external sash frame, creating the clean, uninterrupted look of fixed glazing while still functioning as an opening window.
Is the KF 320 good value compared to other uPVC windows?
Yes – the KF 320 is designed to offer modern design and excellent quality at an attractive price point, making it accessible without compromising on Internorm's high standards.
What U-value does the KF 320 achieve?
The KF 320 achieves thermal insulation values as low as 0.65 W/m²K, delivering strong energy efficiency in a slim, contemporary profile.
Can the KF 320 be fitted with shading or fly screens?
Yes. The KF 320 can be specified with integrated shading and fly screen options, allowing you to tailor the system to your home's practical requirements.
Where can I see the KF 320 in person in Cornwall or Devon?
Visit any of our showrooms in Wadebridge, Redruth, Holsworthy, or Barnstaple to see the KF 320 and speak with one of our glazing specialists in person.
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Find the ideal glazing solution that suits your style, budget, and energy efficiency needs.