Alumart MB79N SI is a next-generation window and door system developed to meet today’s growing demand for superior thermal insulation, energy efficiency, and modern architectural performance. Engineered for both residential and commercial applications, this system is ideal for projects that require high thermal performance without compromising on aesthetics or versatility. Designed for flexibility, Alumart MB79N SI is used to create various types of structures including fixed windows, tilt and turn units, casement windows, exterior doors, and hybrid window-door solutions. Thanks to its robust construction and advanced sealing technologies, it performs exceptionally well in both single-family homes and larger building envelopes. At the core of its performance lies ADF’s upgraded profile design—featuring insulating inserts inside the chambers and a two-component central gasket that ensures outstanding air and water tightness. Among all MB79N configurations, the SI (Super Insulation) version offers the highest level of thermal protection, making it perfect for energy-conscious building designs. When paired with triple-pane glazing, Alumart MB79N SI reaches even higher levels of insulation. Unlike standard double-pane glass, triple-pane units offer: Better thermal efficiency (lower U-values) Enhanced soundproofing Reduced condensation Improved comfort in extreme climates These advantages make triple glazing a natural complement to the MB79N SI system, further optimizing energy performance and interior comfort. If you're planning a project where energy efficiency and high performance are priorities, Alumart MB79N SI is the ideal solution. Contact us today to learn more or request a quote tailored to your design specifications. Energy performance: heat transfer coefficient up to Uw: 0.78 W/m2K Security: Construction depth: Insulating glass max. 52 mm Maximum tightness testing: Waterproof: Wind resistance:
burglary protection up to RC2
70 mm Cover | 79 mm sash
with DuraTherm thermal spacer
class 4 ( EN 12207:2001 )
class E 1950 ( EN 12208 )
class C5 (2000 Pa)
