In June 2005 EgoKiefer optimised the basic version of EgoVerre®. With a new glass coating, an improvement of the u-value of the glass from 1.2 to 1.1 W/m2 K (according to EN) became possible, i.e. from 1.1 to 1.0 W/m2 K (according to DIN). This was achieved without any impairment of light transmission (TL=80%) and total thermal transmittance (g=63%).
Thus the majority of EgoKiefer window systems come standard with extra light, sound proofing and thermal insulation.
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