The MB-86 window and door system is a product marked by very good parameters, which provides the possibility of satisfying varied needs of its users.

Depending on the requirements concerning thermal energy saving, we offer this system in two designs: MB-86 ST and MB-86 SI.
Features that influence the functionality and aesthetics of structures manufactured in accordance with the MB-86 system:
an additional barrier in the profile insulation zone;
a two-component central gasket that provides perfect sealing and thermal insulation for the space between the window sash and the window frame;
a wide range of sections;
glazing beads with additional sealing, available in three designs: Standard, Prestige and Style
it is possible to install various types of envelope fittings, including concealed hinges;
due to the profile depth, it is possible to use all types of panes, including triple glazing units, acoustic window units or anti-burglary panes;
two drainage designs: traditional or concealed

Technical parameters of the system:
Air permeability: windows: class 4, doors: class 3, PN-EN 12207:2001
Water tightness: windows: class E 1,500 Pa, doors: class 5A (200 PA) PN-EN 12208:2001
Thermal insulating power (Uf):
MB-86 ST: windows: from 1.39 W/(m²K), doors: from 2.16 W/(m²K)
MB-86 SI: windows: from 0.92 W/(m²K), doors: from 1.76 W/(m2K), doors: MB-86 SI+: from 1.49 m²K

doors: from 1.22 W/(m2K)
Wind load resistance:
windows: C5 class, doors: C1/B1 class, PN-EN 12210:2001