Sustainable building materials are resources that have a minimal impact on the environment throughout their life cycle. These materials are often sourced from renewable resources, recycled content, or are designed to be energy-efficient. Examples include bamboo, recycled steel, and straw bales, which can reduce waste and lower carbon footprints in construction. Using sustainable building materials can also enhance indoor air quality and reduce energy consumption. Many of these materials are non-toxic and promote better health for occupants. By choosing sustainable options, builders and homeowners contribute to a more eco-friendly future while creating durable and efficient structures.