Which architectural product innovation, first commercially introduced in the early 1980s, revolutionized energy-efficient building design by allowing natural light while providing superior thermal insulation?

The field of architecture has been transformed by innovative building materials that have enabled previously impossible designs. As sustainability becomes increasingly important, architects must stay informed about groundbreaking products that combine form, function, and environmental consciousness. This poll tests your knowledge about a revolutionary architectural product that changed how architects approach energy-efficient design.

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Low-E (low-emissivity) glass
Self-cleaning concrete
Structural insulated panels (SIPs)
Electrochromic glazing