Passiivi Plus

A durable, high-quality window solution superior in energy efficiency for varying weather conditions. The practical and long-lasting wood-aluminium window is available with diverse glazing options. Refined usability with unprecedented energy efficiency!

Domlux Passiivi Plus

A solution for modern low-energy construction

The Domlux Passiivi Plus window was developed for northern conditions and boasts superior energy efficiency. The quadruple glazing offers long-term protection for your home. Select the glazing option best suited for your needs from our diverse collection.

  • U-value up to 0.5 W/m²K
  • Superior in energy efficiency, highly heat-insulating and long-lasting window solution
  • Diverse glazing options
  • Retains its performance even with efficient solar protection glazing
  • Researched, safe and available with diverse accessories
  • Environmentally friendly and ecological
  • Perfect for modern low-energy construction
  • Easy to install, service and maintain

Operational Domlux Passiivi Plus window

  • Operational MS2E ALU structure
  • Optimised and reliable quadruple-glazed window solution
  • Triple insulation, special Domlux sealant in inner frame
  • Standard or mansion profile
  • Standard frame depths 131, 170 and 210 mm
  • Size limits usually single-element 3 m² and multielement 6 m²

Fixed Domlux Passiivi Plus window

  • Fixed MEK ALU structure
  • Quadruple-glazed wood-aluminium window with top-class energy efficiency
  • Large glass surfaces and slim frame profiles, perfect for a picture window
  • The most energy-efficient window on the market
  • Sashless pane installation method with stylish finish
  • Standard frame depths 170 and 210 mm, window board size according to frame depth on the inside
  • Size limit usually 4–6 m² (single-element or divided by intermediate jambs)
  • When looking for fixed windows larger than 5 m², contact us as early as possible
  • We can also provide fixed windows larger than 6 m²

Energy efficiency



  • Rate of heat transfer or U-value
  • Energy efficiency factor or E-value (FI)
  • Energy rating (FI)
  • E-value with efficient solar protection glazing (FI)
  • Energy rating with efficient solar protection glazing (FI)

Domlux Passiivi Plus

  • Rate of heat transfer or U-value 0.70–0.76 W/m²K
  • Energy efficiency factor or E-value (FI) 48–56 kWh/m², a
  • Energy rating (FI) A+
  • E-value with efficient solar protection glazing (FI) 70–75 kWh/m²,a
  • Energy rating with efficient solar protection glazing (FI) A

Domlux Passiivi Plus

  • Rate of heat transfer or U-value 0.5 W/m²K
  • Energy efficiency factor or E-value (FI) 14–15 kWh/m²,a
  • Energy rating (FI) A++
  • E-value with efficient solar protection glazing (FI) 33–36 kWh/m²,a
  • Energy rating with efficient solar protection glazing (FI) A++

Domlux glass options

Insulation glass

Domlux windows keep the heat indoors. Their standard features include groundbreaking insulation glass that has been meticulously designed and guarantees top-class heat insulation.

Energy-conserving glass

So-called selective glass is highly heat-insulating and conserves energy. Such glass includes extremely thin, invisible layers of metal on the surface of the glass to prevent the warm indoor air from escaping.

Solar protection glass

Solar protection glass prevents excess thermal energy due to the sun’s radiation from entering the building. The glass is available with various features; the selective Domlux Sunclear solar protection glass, for example, offers a great basic solution.

Safety glass

Safety glazing protects people and property and minimises the risk of accident-related injuries. Various pre-stressed and laminated glazing types are typical safety glazing solutions.

Fire protective glass

The purpose of fire protective glass is to protect people and property from flames and combustion gases.

The classification is usually required for the entire window structure; in other words, the use of fire protective glass in a regular window is not a sufficient solution.

Soundproof glass

Thickening the glass, using glasses of varying thicknesses and utilising a large intermediate space improves soundproofing in soundproof glass.

Decorative and special glass

Decorative and special glass is used to create a unique look and provide cover. It can be used in individual glass and in insulation glass elements. Special glass includes iron-free glass, one-way mirror, self-cleaning glass and facade glass.

Domlux Passiivi Plus

Colours and surface treatment

Domlux windows and doors come with the best surface treatment quality on the market. The wooden parts are finished by paint or lacquer according to your order. By special order, the colour of the wooden and aluminium parts can be adjusted from generally available colour charts, giving you numerous options from which to select.

Standard and basic colours for wooden parts

Standard and basic colours for aluminium parts