The new MB-86 window and door series have been designed to offer outstanding insulation properties. It meets the increasing requirements from the legislative and general market demands for the enhanced energy saving construction of new windows and doors. Offered in three varieties ST, SI and AERO it is the first aluminum system to employ silica aerogel. The nanoporous material has a very high proportion of free void volume compared to conventional solid materials. Its high pore volume, low solid content, and torturous path amorphous structure give rise to low values of thermal conductivity. Therefore the system features the industry leading thermal performance. In addition it also features exceptional rate of profiles inertia that allows for greater construction in size and weight. Version with concealed sash (MB-86US) is also available.


Cunctionality and Aesthetics

  • large selection of profiles
  • newly shaped, extra thick thermal breaks
  • multi component central gasket
  • glazing strips with additional sealing option
  • glazing up to 67,5 mm enabling all types of three chamber glazing, acoustic and security, anti burglary glazing
  • large, wire-free glass areas
  • appropriate for variety of hardware including concealed hinges
  • water draining available in both traditional and concealed options
  • highly energy efficient from 0,5 W/(mK)
  • clean, sharp lines of narrow extruded aluminum framing
  • multitude of finish options


Depth of frame 77 mm 77 mm 77 mm
Depth of leaf 86 mm 77 mm 80,8 mm
Glazing range frame: 13,5 – 58,5 mm
leaf: 21 – 67,5 mm
13,5 – 58,5 mm frame: 7 – 52 mm
leaf: 15 – 60 mm
Size and weight limitations
Maximum size (H×L) H to 2800 mm
L to 1700 mm
H to 3000 mm
L to 1400 mm
H to 2500 mm
L to 1600 mm
Max weight 150 kg 200 kg 150 kg


Air Permeability class 4,
PN-EN 12207:2001
class 3,
PN-EN 12207:2001
class 4,
PN-EN 12207:2001
Watertightness class E 1500,
PN-EN 12208:2001
class 5A (200 Pa),
PN-EN 12208:2001
class E 1350,
PN-EN 12208:2001
Thermal insulation (Uf)

MB-86 ST od 1,39 W/(m²K)
MB-86 SI od 0,92 W/(m²K)

MB-86 AERO od 0,57 W/(m²K)

MB-86 ST od 2,16 W/(m²K)
MB-86 SI od 1,76 W/(m²K)
MB-86 SI+ od 1,49 W/(m²K)
MB-86 AERO od 1,22 W/(m²K)
MB-86US ST od 1,03 W/(m²K)
MB-86US SI od 1,01 W/(m²K)
MB-86US AERO od 0,86 W/(m²K)
Windload resistance class C5,
PN-EN 12210:2001
class C1/B2,
PN-EN 12210:2001
class C5,
PN-EN 12210:2001





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