Many ancient structures have withstood centuries not just due to the materials used, but because of the builders' understanding of their environments. For example, Roman concrete has lasted millennia due to its unique volcanic ash mix which strengthens over time. In home repair today, emphasizing sustainable materials and localized techniques can significantly increase the longevity and eco-friendliness of our homes. What are some environmentally conscious repair or building practices you've encountered or advocate for? Share your insights!