
MB‑79N US
An Aluprof aluminium system with a concealed sash. A flat, smooth façade with no visible sash profiles. 70 mm depth, double or triple glazing, RC2 class.

An Aluprof aluminium system with a concealed sash. A flat, smooth façade with no visible sash profiles. 70 mm depth, double or triple glazing, RC2 class.
Aluminium meets the highest standards.
Choosing aluminium joinery for a new home or a deep thermal retrofit is subject to the same stringent standards as PVC windows. The key parameter remains the Uw thermal transmittance coefficient. To meet the WT 2021 requirements and qualify for the "Czyste Powietrze" (Clean Air) programme, this value must not exceed the standard:
For modern buildings that aim to combine slim aluminium aesthetics with thermal comfort, we offer two variants — standard and with a concealed sash for a clean, minimalist façade:

See what's inside.
Corner cross-section of the MB-79N US profile. An innovative thermal break with a central EPDM gasket, 70 mm aluminium profile by Aluprof. Double or triple glazing to choose from.
Six chambers form an air barrier that limits heat and noise transfer.
The thermal break separates the outer and inner aluminium, blocking the thermal bridge in the profile.
The durable central EPDM gasket ensures tightness, quiet and protection from draughts.
Warm-edge spacer and low-E glass — low Ug value.
Engineering
that works quietly.
Premium-class thermal insulation. Triple glazing with a warm-edge spacer cuts heating bills by up to 30%.
An innovative thermal break with a central EPDM gasket blocks the thermal and acoustic bridge. Aluprof MB-79N US profile system.
Noise reduction. The central EPDM gasket seals the acoustic bridge.
Hardware with anti-burglary mushroom-head cams and a mis-operation lock.
Triple glazing with a warm-edge spacer — maximum thermal insulation.
Choose your package.
Each variant differs in its glazing unit. Choose the right one for your building.
Warm
Triple-glazed unit. Meets the WT 2021 requirements. Recommended for energy-efficient homes.
Common to all variants
Choose the right glazing for your needs
The glass is a key part of any window — it shapes thermal insulation, sound insulation and security. We offer 11 patterned designs as well as functional glazing (absorptive, reflective, sound-reducing, toughened and laminated).
Patterned glass designs· 11 designs
They provide privacy while letting plenty of light through (80–90%).











Other glazing types· 5 types
Functional glazing matched to specific needs — protection from sun, noise or break-ins.





Available colours
Textured or matt powder coating, UV-stable — with a multi-year colour guarantee. Pick a colour and see the window come to life.

The colour swatches and product visualisations shown above do not fully reflect the actual colours or the real material structure — they are intended only as an indicative visual reference of the final result.
The MB-79N US is the right choice in every room.
Compare our aluminium window systems
Four core aluminium systems from BUDVAR. Remove any models you'd rather not compare — bring them back from the bar below.Scroll to see them all.
* Uw value determined in accordance with the standard DIN EN ISO 10077-2 for a single-sash reference window measuring 1230 × 1480 mm, fitted with standard double-glazed glazing and a warm-edge spacer. In the case of a window Ecofutural OC this value was achieved with single-glazed glazing.
Download the BUDVAR MB-79N US catalogue
Full technical specification, design, available colours, accessories and energy parameters — all in a single PDF document ready to download.
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