Construction materials have evolved in great ways over the years. Instead of using asbestos when building, people now use recycled materials. Construction materials are important to our safety because they're what hold the industrial world together.
How Roofing Materials Work
When you think of a metal roof, you think of a dilapidated lean-to with a corrugated tin roof. Today roofs are usually made of an asphalt/fiberglass combination or wood shingles.