back to overview


UPVC windows
KF 410

The subtly profiled UPVC window meets the highest demands for heat protection and is therefore 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.

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

Product information


  • High thermal insulation thermal foam (HCFC-, HFC- and FC-free)
  • Subtly profiled look with narrow radii
  • Can be coupled with KV 440 and combined with timber/aluminium windows

Dimensions in mm

  • Frame construction depth: 90 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: light grey

Further design styles

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

Designer handle
Polished brass

Designer handle, Athinai
Polished brass
Designer handle, Atlanta
Polished brass

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

Window shutters: aluminium, with numerous design options, can be combined with insect protection

Venetian blindsAttachment roller shutterInsect protectionWindow shutters

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.
Fixed glazingLift and slide door






The UPVC windows of the ambiente design style are available in white. For a coloured outside view, the model is available as the KF 200 UPVC/aluminium window. For more information, please contact your Internorm architectural consultant.





Product data sheet for download


To download further technical data, please log into
the [1st] WINDOW PORTAL.

If you do not have access yet, please register here.

Product combinations