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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Helmut Hohenstein
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DOI:10.17265/1934-7359/2025.03.004
Dr. Hohenstein Consultancy, Kinderheimstr. 3, Marl 45770, Germany
This year summarizes the experience of industrialization of vacuum glazing in the past twenty years. A series of technical difficulties have been solved to start the first global mass production of high-quality vacuum glass. High quality means high performance and long life which are interrelated. A mass production line must be able to achieve these two requirements if it is to produce vacuum glazing products that can be accepted by the society. With a U-value of 0.4 W/m²·K based on Low-E (low emissivity) with an emissivity of 0.03 the door is wide open for further solutions. Time, gradually to improve costs, maximizes output and develops innovative solutions of advanced window and façade systems combining complete new features like smart glasses, intelligent lamella systems in hybrid VG-IG solutions changing the building world towards “Energy plus Houses”. Market demand will rapidly increase with completely new options. Cost saving means to balance additional advantages for savings against system costs of window or façade elements. Due to promotion of energy saving and emission reduction, both, subjective and objective conditions for industrialization of vacuum glasses are perfect; the building world is waiting for it, since long. There is a lot to investigate and to gain for business success.
Vacuum glass, energy saving, advanced window and façade systems, industrial production, Energy + Houses.
Journal of Civil Engineering and Architecture 19 (2025) 137-147
doi: 10.17265/1934-7359/2025.03.004
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