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Idealcombi Nation IC

Nation IC is a modern take on the flush casement window improved for better energy-efficiency and less maintenance.

The Nation IC window is a composite window with an external aluminium profile with a “putty” look, and idealcore™ for optimum energy performance & low maintenance and internally there is a finger jointed, FSC® certified timber frame.


Double glazed window
Indicative u-value 1,32 W/m²K

Triple glazed window
Indicative u-value 0,77 W/m²K

More than just a window

  • Quality optimised, finger jointed timber
  • External aluminium profile
  • Imperishable material in “the wet zone”
  • Double seals
  • Counter sunk rubber seals, protected against sun, wind and water
  • High insulation with minimal heat loss
  • Idealcore™ that acts as a thermal bridge
  • No glazing beads
  • Reduced risk of condensation on the inside of the glass panes
  • Ventilation options in the ironmongery
  • Modern, adjustable and sturdy ironmongery
  • Warm edge spacer bar in super low-E windows
  • Minimal maintenance
  • Longer lifespan

Nation IC windows and doors

The Nation IC has a "putty look", designed to look like single glazed windows and are therefore perfect for replacements in period buildings. Period look with modern performance, security and functionality. Available with multiple opening functions, as fixed light windows, terrace doors, entrance doors and sliding doors.

Nation IC windows and terrace doors are operated with a single handle espagnolette providing a high level of security against burglaries.

All doors comes as inward or outward opening and can be traditional panel doors or flush panel doors with grooves and/or different shaped vision panels.
Doors are also fitted with espagnolettes for save and easy operation.

Highest level of safety

For Idealcombi it is all about safety and comfort for you and your family.

Completely new and custom designed ironmongery makes Frame IC an even harder job for any intruder.

Mushroom bolts, strong safety keeps and secured glass units is standard.

All entrance doors are PAS 24:2016, SBD certified.

Nation IC Sliding Door

Completing the Nation IC range is the low threshold sliding door with the same options for a glazing putty external look.

The sliding door is SBD tested, has a single handle operation and rolls easily along the track.

Energy efficient

The fixed light always comes as triple glazed, with a choice of double or triple glazing in the moving part – with u-values from just 0.91 W/m²K.

More info on the low threshold sliding door.

Find all Idealcombi Nation IC opening functions, technical drawings and REVIT files on