Which glass type is commonly specified for the spandrel areas of an all- glass curtain wall?

Question

Quizplus · Accepted Answer

Heat-strengthened glass is commonly specified for the spandrel areas of an all-glass curtain wall because it offers increased strength and durability compared to annealed glass, but is not as expensive as fully tempered glass. Spandrel areas are the portions of the curtain wall that conceal the building's structural components and services, and therefore require a more opaque glass. Heat-strengthened glass allows for some light transmission while providing a desired level of opacity. Sheet glass, tempered glass, and plate glass are not commonly used for spandrel areas as they do not provide the necessary strength and durability, while annealed glass may be too fragile for this application.

Which Glass Type Is Commonly Specified for the Spandrel Areas