Gemini ThermoLine

A trend to reduce the heat transfer coefficient of window joinery is observed from some time, and as a reaction to that, Pozbud have introduced the Gemini ThermoLine wood/aluminium windows. All designs, dimensional relations and shape of the wood section are identical to Geminiline system windows.
The production method of windows with reduced heat transfer coefficient does not differ from the standard production of Geminiline system wood/aluminium windows.
A distinctive feature of the solution is a frame and sash made of three or four layer glued laminated timber (depending on profile thickness) made of wood/aluminium structure with special thermal insulator between the wood section and Aluron aluminium trim and 4/16Ar/4/18Ar/4 triple glazing unit with Ug=0.5 W/m2K.  The result is a heat transfer coefficient for the whole window below 0.8 W/m2K, depending on the thickness of wood profile used.
The advantage of the system is an energy efficiency (the windows store the heat, provide comfort and reduce condensation), and improved noise protection (window with triple glazing unit, several gaskets and thermal insulator is characterized by improved thermal and sound insulation).

Gemini ThermoLine system window frame and sash may be categorized into three subsystem (by wood profile thickness):
• Gemini ThermoLine 68mm
• Gemini ThermoLine 88mm
• Gemini ThermoLine 92mm

Thicker wood frame and sash profiles provide improved durability and stability of the structure, and better heat transfer coefficient for the complete window. Higher thickness of wood profiles allows use of glazing units with higher thickness. Each subsystem may be fitted with various shapes of Aluron aluminium trims (Classic, Softline, Linear), creating unlimited possibilities of constructing various window types.
As a result of tests conducted by the accredited laboratories, Gemini ThermoLine system wood/aluminium windows achieved exceptionally high heat transfer coefficients values for the complete window:
• Gemini ThermoLine Classic 68mm – Uw = 0,78 W/m2K (triple glazing unit with Ug=0.5 W/m2K)
• Gemini ThermoLine Classic 88mm – Uw = 0,74 W/m2K (EXTERM 88+ALU) (triple glazing unit with Ug=0.5 W/m2K)
• Gemini ThermoLine Classic 92mm – Uw = 0,60 W/m2K (Pozbud Premium 92+ALU) (triple glazing unit Ug = 0.3 W/m2K)