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Thermal Insulation: Planibel TopN+

glasses providing enhanced thermal insulation

Private house

Planibel TopN+ & TopN+T Planibel N description

  • Insulating glazing of which the interior pane is Planibel TopN+ or TopN+T (glass with a fine C-type transparent metallic coating – EN 1096-1)
  • The space between the glass panes is filled with thermal gas
  • Very low and performant Ug value: up to 1.1 W/m².K depending on the spacer


  • Aesthetic qualities of the coating: neutral and low level of reflection
  • High-performance Ug value. Provides twice as much insulation as traditional double glazing
  • Perfect matching from an aesthetic point of view between TopN+ and TopN+T
  • Free solar heat gain


Performance table

(1) Identical values for a 15 or 16 mm spacer.
(2) The Top N+T coating must be thermally toughened to achieved the desired level
of performance.

Components Available in Insulating Glazing

DGU components may be varied to achieve different thermal, solar, sound and safety functions.


Glasses may be heat-treated to enhance their resistance to mechanical and thermal shocks.


Heat Strengthend Glass

Thermally Toughened Glass

Thermally Toughened HST Glass

Tempered glass table