Windows, doors and terrace systemsLT

Aluminium window system

MB-79N SI

Choose energy efficiency.

MB-79N SI is a new-generation aluminium window system with increased thermal insulation. Insulating inserts and a two-component central gasket help reduce heat loss, while contemporary design, more than 200 RAL colours and numerous options make the system suitable for demanding projects.

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MB-79N SI three-dimensional aluminium window profile cutaway
0.81Uw W/(m²K)*
70 mmInstallation depth
3Chambers
2EPDM gaskets

Key features

A system designed for everyday comfort

  • Insulating inserts and a two-component central gasket
  • MACO MULTI-MATIC KS hardware with two anti-theft strikers
  • Microventilation in tilt-and-turn windows
  • More than 200 RAL colours and an optional 25 mm renovation frame

Window cross-section

MB-79N SI 70 mm technical aluminium window profile cross-section with dimensions

Technical data

MB-79N SI specification table

Number of chambers3
Installation depth70 mm
Thermal transmittanceUw = 0.81 W/(m²K)*
Thermal insulationInsulating inserts and a two-component central gasket
SealingTwo EPDM gaskets: one standard and one central foamed EPDM gasket; black
Standard glazingArgon-filled double glazing, Ug = 1.1 W/(m²K)
Glazing spacerGalvanised steel; Swisspacer Ultimate warm edge available as an option
HardwareMACO MULTI-MATIC KS with Silber-Look anticorrosion coating
SecurityTwo anti-theft strikers as standard
ComfortMicroventilation and sash lifter depending on window height
HandleAluminium
Standard coloursMatt white RAL 9016 and matt anthracite RAL 7016
Colour rangeMore than 200 RAL colours, textures and special effects
RenovationOptional 25 mm renovation frame for installation without removing the old window frame

* Uw = 0.81 W/(m²K) is the system value stated by the manufacturer; actual performance depends on window dimensions, glazing and configuration.

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