We are taking action on the greatest challenge of the 21st century: how to truly prosper within the natural limits of our planet. ALUMINCO contributes to tackling the climate challenge, by allowing savings of energy costs due to efficient insulation.

The design of sustainable building envelopes demands more than just implementing the current energy standards. In view of the challenges of climate change and amended legal adjustments, windows will be required to match concepts such as passive house.

Buildings consume around 40% of the energy generated. New buildings, from 2021, must be nearly zero-energy buildings. So, energy efficiency of buildings must be massively improved to have a very low energy balance. To achieve the high standards for nearly-zero energy buildings must first and foremost be well insulated.

In this philosophy, we develop passive house systems, based on sustainable development and circular economy. Our window system W4900 fulfil these strict certification criteria and have excellent thermal insulation to passive house level. We received Passive house certification for ALUMINCO W4900 few years ago.


W4900 Tilt & Turn Thermal Insulating System  : Innovative Concept with a passive house certification.

The ALUMINCO W4900 aluminium window system has been certified by the Passive House Institute (PHI) in order to meet the high requirements of passive houses. It incorporates all the well-known benefits of aluminium windows such as stability and high structural requirements with a superior level of thermal insulation value of Uw=0.78 W/m²K and the greatest possible degree of architectural design freedom.

Features & Benefits.

  • Unique thermal insulation for aluminium windows in accordance with the passive house certification standard.
  • Innovative insulation system thanks to 54 mm polyamides offering Uf value = 0.76 W/m²K with 102 mm face width.
  • Increased sound reduction.
  • Μulti-chamber central gasket that ensures optimum impermeability preventing energy loss.
  • Superior safety due to the multiple perimetric locking.
  • Vast selection of profiles in straight and curved cross sections.
  • For all typologies of casements and patio doors.

Aluminco W4900