Window frames

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W/(m²K)

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Search	Type	Efficiency class	Material	`U`_W	Climate zones	Location / availability	Distance to nearest vendor (km)	Date certified	Open type
Component Manufacturers
YHS103 Weifang Yerui Industry and Trade Co., Ltd.	Operable	phC	Aluminium	0.80 W/(m²K)	Cool, temperate	China (CN)	10000 km	Dec 2023
Z136 Qingdao Jerdvin Household Co. Ltd	Operable	phB	Timber / aluminium	0.79 W/(m²K)	Cool, temperate	China (CN)	10000 km	Mar 2024	Inward opening
ZEN EuroFinestra s.a.s.	Operable	phA	Timber	0.68 W/(m²K)	Cool, temperate	Italy (IT)	5127 km	Sep 2019	Inward opening
Zero \| 90 Liniar Ltd.	Operable	phB	PVC	0.79 W/(m²K)	Cool, temperate	United Kingdom (GB)	5897 km	Dec 2016
Zero \| 90 (fixed) Liniar Ltd.	Fixed	phA+	PVC	0.75 W/(m²K)	Cool, temperate	United Kingdom (GB)	5897 km	Dec 2016
Zero \| 90 Tilt & Turn Liniar Ltd.	Operable	phB	PVC	0.80 W/(m²K)	Cool, temperate	United Kingdom (GB)	5897 km	Nov 2022	Inward opening
ZEW 92MD Henan CROWN Window & Door Co., Ltd	Operable	phB	PVC	0.80 W/(m²K)	Cool, temperate	China (CN)	10000 km	Mar 2025	Inward opening
Zhongcai profiles 88mm-passivhaus Tianjin zhongcai profiles Co.Ltd.	Operable	phB	PVC	0.79 W/(m²K)	Cool, temperate	China (CN)	10000 km	Jun 2018
ZNC Zola Windows	Operable	phA	Timber / aluminium	0.76 W/(m²K)	Cool, temperate	United States of America (US)	10000 km	Oct 2015
ZNC Arctic Zola Windows	Connection	phB	Timber / aluminium	0.64 W/(m²K)	Cold	United States of America (US)	10000 km	Oct 2015
ZUHAIZKI 92 PASSIVHAUS ZUHAIZKI, S.L.	Operable	phB	Timber	1.00 W/(m²K)	Warm, temperate	Spain (ES)	4798 km	Jul 2021	Inward opening