Aluminium windows


Send enquiry

MB-79N, the latest proposal from Aluprof, is an economical and modern window and door system. Designed with increased thermal insulation requirements in mind, it allows a variety of constructions to be realised, such as fixed windows, casement windows, tilt and turn windows, tilt and slide windows, single and double-leaf external doors, or display cabinets with doors.

In addition to the MB-79N E economic version with a single-component central gasket in the windows, the MB-79N ST version with a two-component central gasket is also available. The system also offers the MB-79N SI variant, characterised by the highest thermal insulation, with profiles fitted with insulating inserts and a two-component central gasket. For external doors, an additional variant MB-79N SI+ is available with insulating inserts inside the profiles and a central gasket. The range is complemented by the MB-79N Casement outward opening window system with thermal break and the MB-79N US concealed sash window system.

UW from 0,64 W/(m2K)


  • profiles with a depth of 79 mm (window casement) and 70 mm (frame and door casement)
  • thermal breaks made of an innovative material with a new shape, allowing the seal to be applied to the profile insulation zone in both windows and doors
  • 3 thermal construction variants for windows (MB-79N E, MB-79N ST, MB-79N SI) and 3 variants for doors (MB-79N ST, MB-79N SI and MB-79N SI+)
  • construction that meets the requirements of the Technical Conditions from 2021 for windows (0,9 W/(m2K) and doors (1,3 W/(m2K))
  • thermal insulation: UW from 0,64 W/(m2K)
  • very good kinematics, allowing for the construction of narrow opening windows
  • the door leaf profiles have an expansion joint, which eliminates thermal stress during use
  • the possibility of using invisible hinges and the most popular perimeter fittings, including concealed fittings, together with the state-of-the-art AluPilot window fitting; fittings with automation and access control functions are also available on doors
  • a wide range of glazing with 2- or triple glazing packets with a thickness of up to 63 mm for windows and up to 54 mm for doors, which allows the use of all common types of glass, including acoustic or burglar-proof glass
  • possibility to produce burglar-proof doors in classes RC1 – RC3 as well as panel doors, offering a wide range of aesthetic possibilities
  • a large selection of handles in different design ranges, including handles with a visible escutcheon or without escutcheons, with a minimalist look
  • an outward opening window variant with thermal break MB-79N Casement and a window variant with concealed casement MB-79N US are available
MB-79N SI window / MB-79N ST window

Examples of heat transmission coefficients UW

Glass with Multitech frame
Dual chamber Single-chamber
Ug=0,5 Ug=0,7 Ug=1,0
MB-79N E 0.82 0.98 1.25
0.98 1.12 1.37
MB-79N ST 0.82 0.98 1.25
0.95 1.09 1.30
MB-79N SI 0.70 0.86 1.13
0.79 0.93 1.18

Distribution of isotherms in the MB-79N SI window


Frame depth
70 mm
Sash depth 79 mm
Glazing thickness
frame: 1,5 – 54 mm,
wing: 10,5 – 63 mm
Max. sash dimensions (H×L) H to 2700 mm, L to 1350 mm /
H to 2150 mm, L to 1700 mm

Air permeability
Class 4, EN 12207
Waterproof Class E 1950, EN 12208
Thermal insulation
UW from 0,64 W/(m2K)*
UW from 0,72 W/(m2K)**
Wind load resistance Class C5, EN 12210

* – UW for fixed window MB-79N SI, sash size 1700×2700 mm, with glazing Ug=0,5 W/(m2K)
** – UW for an MB-79N SI opening window with casement dimensions 1700×2150 mm, with glass Ug=0,5 W/(m2K)
**** – UW for an MB-79N Casement SI opening window with casement dimensions 1900×2500 mm, with glass Ug=0,5 W/(m2K)

Quick contact
Need more information?
Get in touch with our specialists:

    Send message

    We work with the highest quality products
    Do you have questions?
    Get in touch with us.
    Send enquiry