The tried-and-tested option

IDEAL 4000®

70mm construction depth

With millions of units already installed, this system impresses with incredible, tried-and-tested stability and a wide range of designs.


construction depth


Uf value


Best Uw value

Up to RC2


Up to 45dB

Sound insulation

Technical details

  • 70 mm construction depth
  • Uf = 1.3 W/m²K
  • Uw = 0.99 W/m²K with standard-triple-glazing with Ug = 0.6 and Psi=0.040 W/mK
  • Uw = 0.76 W/m²K best possible option with triple glazing with Ug = 0.4 and Psi=0.030 W/mK
  • Up to RC2 burglar protection
  • Up to 45dB (sound protection class 4)
  • Up to 41 mm glazing
  • Wide range of laminations available
  • Available with aluskin® aluminium shells (wide array of colours)
  • Recessed option, semi-recessed option, roundline option
  • 5 chamber profile
  • Concealed drainage is possible
  • Optional bonding inside (adhesive technology)

Pick your favourite colour

Find the perfect colour with our colour configurator

Find a fabricator of aluplast window systems in your area.

Or simply ask your local window builder for aluplast's innovative technologies.

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