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home soft

UPVC/aluminium windows
KF 410

The elegant UPVC window meets the highest demands for heat protection and is thus our "best in class" window. It is passive house-certified as standard. The design of the frame profile with narrow radii offers a soft look that emphasises the surface — in weather-resistant aluminium on the outside, and a natural timber surface on the inside.

Thermal insulation:Uw up to 0,62 W/m²K
Sound protection: 34–45 dB
Security: RC1, RC2
Locking: concealed

Product information

Trend-setting advantages
  • High thermal insulation thermal foam (HCFC-, HFC- and FC-free)
  • Elegant look with narrow radii
  • With shortened aluminium facing formwork on request for a structural connection that is thermotechnically optimised

Dimensions in mm

  • Frame construction depth: 93 mm
  • View width, frame/sash: 113 mm
  • View width, flying mullion (with two sashes): 133 mm
  • View width, transom (with two sashes): 187 mm
I-tec Ventilation
  • I-tec Ventilation optional
  • IV 40 with 93% heat recovery

Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding windows
  • Lockable doors
  • Sliding doors
  • Doors with threshold


  • Quantity: 3
  • Colour: black

Further design styles

home pure
KF 410

KF 410



We offer you an ambitious selection of handles — one recommendation is shown here. For information about further designs, please contact your Internorm architectural consultant.

Standard handle
Natural aluminium

Designer handle, steel

Designer handle, Athinai
Matt chrome/stainless steel

Designer handle, Bruxelles
Satin-finished chrome

Sun and insect protection

The sun and insect protection systems complement the windows, making them one functional unit, and support the design of the house façade.

Venetian blinds: optimal control and deflection of light and heat via adjustable slats, can be combined with insect protection

Attachment roller shutter: mounted completely on the window, can be combined with insect protection

Insect protection: clamped, hinged or sliding frame or drop-down fly screen available, can be combined with sun protection

Venetian blindsAttachment roller shutterInsect protection

Large-scale elements

The design as a door with fixed glazing — even in XL sizes up to a glass area of 8,2 m2 — and as a lift and slide door allows modern glass architecture.
Lift and slide doorSliding door






The UPVC/aluminium windows of the home soft design style are available with a white inside look. A selection of the colours available for the outer aluminium shell is shown here. Please discuss your individual colour requirements with your Internorm architectural consultant.

Outside colour






Product data sheet for download


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Product combinations