ALUPROF MB-79N US
Aluminium window with hidden transom
ALUPROF MB-79N US is an economical and functional aluminium window system where transoms are invisible from the outside — adjacent fixed and openable windows cannot be distinguished, creating a uniform facade appearance. The system is available in two mullion variants: Type-A frame partially covers the transom, while Type-B frame completely covers it, ideally imitating a fixed window. Three thermal insulation versions are offered — MB-79N US E (economical), MB-79N US ST (with two-component seal) and MB-79N US SI (best thermal insulation with insulating inserts and two-component seal). The system provides excellent thermal insulation, sound insulation, as well as water and air tightness. The maximum transom size is 2.7 m in height and 1.7 m in width with a maximum weight of up to 160 kg, and it is compatible with other ALUPROF MB-79N family solutions.
Hidden transom — it is impossible to distinguish fixed windows from openable ones from the outside
Two mullion variants: Type-A (partially covers the transom) and Type-B (completely covers the transom, imitating a fixed window)
Three thermal insulation versions (E, ST, SI) for various energy efficiency requirements
Specifications
Frame profile depth70 mm
Transom profile depth79 mm
Thermal break width33.5 or 36 mm
Glazing typeTriple glazing
Maximum transom height (HS)2.7 m
Maximum transom width (LS)1.7 m
Maximum transom weight160 kg
Glass thickness (frame)1.5–44.5 mm
Glass thickness (transom)12–52.5 mm
Thermal insulation variants
Other Windows products
View all
PROCURAL PE96HI
Three-chamber insulated profile system for passive houses
Premium aluminum window system with 96 mm depth, designed for energy-efficient and passive buildings. Achieves Uw = 0.66 W/(m²K) with triple glazing.
Learn more →
PROCURAL PE68 / PE78N RC4
RC4 Class Burglary Prevention Window System
Insulated aluminum profile system for RC4 class security windows and glass partitions. Provides high burglary protection without compromising aesthetics or thermal insulation.
Interested in this system?
Request a free consultation
Our specialists will help you choose the optimal solution for your project and prepare a quote.
