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THERMAX is designed by Slowinscy new aluminium clad window. The wooden part of the window is 88 mm thick, which allows to install very thick glazing units. Standard THERMAX windows are equipped with a 3-glazing unit with the heat transfer coefficient Ug = 0.5 W/m2K. With this construction we obtain an excellent insulation parameter for the reference window Uw = 0.8 W/m2K.

Overall U-value:
0,8 W/m2K
Acoustic value:
34-42 dB (depending on the glazing unit)
Water-tightness class:
Class 3A
Class of air permeability:
Class 4
Resistance to wind load:
Class C3