Which revolutionary building material, introduced commercially in 2004, allowed architects to create buildings with self-cleaning exterior surfaces?

Architecture is constantly evolving through innovative materials and product innovations. Some materials have fundamentally changed how architects design and build structures, creating new possibilities for form, function, and sustainability. This poll tests your knowledge about a significant product innovation that transformed architectural possibilities in the 21st century.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

• Photocatalytic concrete (TiO2 concrete)
• Aerogel insulation
• Carbon fiber reinforced polymers (CFRP)
• Transparent aluminum (ALON)

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