This Glass Insulates Like a WALL — A Wisconsin Startup Just Revolutionized Windows

This Glass Insulates Like a WALL — A Wisconsin Startup Just Revolutionized Windows According to the U.S. Department of Energy, windows account for 25 to 30 percent of the energy a home uses for heating and cooling. A small company in Wisconsin says it has a fix: vacuum insulated glass that insulates more than three times better than a conventional window, at a manufacturing cost aimed at that of ordinary double-pane glass. So is it a scam, or a technology with a real future? And when could you get it in your home? This video follows the story of V-Glass, from a 1892 thermos flask to a Wisconsin engineer's question in 2008, federal research grants, laboratory tests and a $3 million seed round in 2026, and looks at what has been shown and what has not. In this video: • Why windows are the weak point of the American home • How a vacuum, the principle of the thermos bottle, blocks heat • Why vacuum glass has existed for decades and is still rare • The oven problem, and how V-Glass tries to remove it • What the R-value numbers actually mean • The missed launch dates, the funding and the price question Important limits: V-Glass is a research and development company. As of November 2026, its glass is not for sale, no retail price has been published and no launch date has been announced. The performance, durability and cost figures in this video are the company's own claims, targets and estimates, not independent measurements. Chapters: 00:00 A window that insulates like a wall? 01:01 Scam or real? 01:27 The idea: a thermos for windows 02:21 Why it never took off 02:58 The engineer and his question 03:34 Nothing was simple 04:21 The pivot 04:57 How it works 05:34 The results, the dates and the price Sources and credits: • V-Glass, Inc. (Waukesha, Wisconsin): company website and LinkedIn page • V-Glass press release, March 17, 2026 (Business Wire) • V-Glass press release, November 21, 2022 • U.S. Department of Energy, Building Technologies Office, 2019 and 2023 peer reviews, "Vacuum Glass for R-10 Windows" • U.S. Department of Energy, Energy Saver: "Purchasing Energy-Efficient Windows" • Window + Door (National Glass Association), "Warm as a Wall", August 2021 • GlassOnline, July 2013 Copyright notice: This is an independent video. It is not sponsored by, endorsed by or affiliated with V-Glass, Inc. or any company mentioned. Images, footage and trademarks belong to their respective owners and are used for commentary, news reporting and educational purposes under the fair use doctrine, Section 107 of the U.S. Copyright Act. If you are a rights holder and have a concern about any content in this video, please contact me through this channel and it will be addressed promptly. Subscribe for more stories about the technologies that could change the way homes use energy. #VacuumInsulatedGlass #EnergyEfficiency #Windows #HomeEnergy #VGlass #Innovation #Insulation #CleanTech