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Research And Markets recently released a report on the global insulating glass window industry in 2026-according to product type, insulating glass type (double layer, triple layer), spacer, sealant type (silicone rubber, polysulfide, hot melt butyl, polyurethane ), terminal industry, region".

The size of the insulating glass window market in 2020 is 12 billion U.S. dollars, and it is expected to reach 17.2 billion U.S. dollars by 2026; the compound annual growth rate from 2021 to 2026 is 6.1%. The insulating glass window market is developing strongly in different end-use industries, such as commercial ( Offices, commercial buildings, healthcare facilities, etc.) and residential buildings.Hollow glass windows reduce the level of light transmission into the interior of the building, reduce solar heat gain, and improve the thermal efficiency of the building by minimizing the heat and cold transfer from the built environment to the external environment.

Three-layer glass is expected to develop at the highest compound annual growth rate during the forecast period

According to the type of glass, the three-layer glass part is expected to grow at a faster rate between 2021 and 2026. Compared with double-glazed windows, the use of triple-glazed windows significantly reduces carbon dioxide emissions and saves more energy. In addition, the high demand for triple-glazed windows from countries with cold climates has also promoted the development of this field.

Hot melt butyl rubber is expected to grow at the highest compound annual growth rate during the forecast period

According to the type of sealant, the hot melt butyl part is expected to become the fastest growing type of sealant in the insulating glass window market. Hot-melt butyl rubber is a butyl rubber-based sealant used as a secondary sealant for hollow glass windows to provide a low moisture vapor transmission rate. In addition, they do not pose any processing and storage problems, which in turn eliminates all processing requirements for processing and storage time, thereby providing a balance between performance and operating efficiency. These factors are expected to lead to an increase in the hot melt butyl segment.

Flexible warm edge spacers account for the largest share in 2020

According to the type of spacers, flexible warm-edge spacers will account for the largest share of the global insulating glass window market in 2020.

Compared with aluminum spacers, flexible warm-edge spacers have extremely low electrical conductivity and provide the main benefit of improving the thermal efficiency of hollow glass windows.

The residential segment is expected to have the highest compound annual growth rate during the forecast period

According to the end-use industry, the residential industry is expected to grow at the highest compound annual growth rate between 2021 and 2026. The key role of hollow glass windows in the residential building sector is to keep homes warm in winter and cool in summer. The growing demand for green buildings is expected to drive this area during the forecast period.

Europe is the second largest insulating glass window market in 2020

Europe is the second largest market for the global insulating glass window market in 2020. The growth can be attributed to the presence of major manufacturers of insulating glass windows in this region. The overall consumption of insulating glass and other glass windows in the European construction market is very large. The next few years will see more investment.


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