Which innovative architectural product was first introduced in the 1980s by the German company Allianz and revolutionized building exteriors with its self-cleaning properties?

Test your knowledge about revolutionary product innovations in architecture that changed how buildings are designed and constructed. These innovations significantly impacted sustainability, efficiency, and aesthetics in modern architecture. Some products emerged from academic research while others were discovered through industrial experimentation. How familiar are you with these game-changing architectural products?

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Photocatalytic glass (with titanium dioxide coating)
Structural insulated panels (SIPs)
Low-E window film
Aerogel insulation