MB-86 SI windows


MB-86 SI windows

The modern aluminum system used for production of exterior architectural elements that requires thermal and acoustic insulation.


  • Windows in MB-86 SI system may be used both in individual buildings and in aluminum facades.
  • Increased thermal insulation of MB-86SI system thanks to the application of an extra chamber in the thermal break.
  • Very good heat transmittance coefficient U thanks to the application of thermal breaks.
  • Great choice of colours in the standard colour range enables to satisfy the of most demanding clients.
  • The profile shape enables to obtain slender and resistant structure of the windows and doors.
  • Tightness is ensured thanks to the application of special gaskets made of two-component EPDM synthetic rubber: solid and cellular, that provides many years of exploitation as well as great thermal insulation.
  • Wide range of filling thickness guarantees the possibility to use any standard and non-standard glass.


This profile has a three-chamber structure with the structural depth of the window sections 77 mm (frames) and 86 mm (sash), with a thermal break made of polyamide reinforced with fiberglass. Extra chamber in the thermal break.


Glass packages up to 65mm;in standard one-chamber glass package of heat transfer coefficient Ug = 1,0 W/(m2K) according to PN-EN674; he possibility to apply a three-glass package of U= 0,5 W/(m2K) coefficient or a four-glass package filled with krypton of Ug=0,3 W/(m2K); the possibility to apply glass with increased acoustic insulation, tempered, safety, anti-burglary, ornament, solar protective.


Maco Multi Matic KS fittings with two anti-burglary bolts in standard; the window is equipped with a blockage against handle misplacement and with a sash lift*; micro-ventilation in a slot


This product is aviable in 200 RAL colors