Which innovative building product development, first widely adopted in the early 2000s, reduced building energy consumption by up to 30% and revolutionized sustainable architecture?

Sustainable architecture has evolved dramatically over the past few decades, with innovative product developments reshaping how buildings interact with their environments. This poll tests your knowledge about a groundbreaking product innovation that revolutionized green building design and significantly impacted the industry's approach to sustainability. Can you identify the correct technological advancement that transformed architectural sustainability standards?

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Low-E (low-emissivity) glass technology
Cross-laminated timber (CLT) structural systems
Self-healing concrete with bacterial additives
Passive photocatalytic facade treatments