Asbestos is a naturally occurring mineral that was commonly used in construction materials from the 1940s through the 1980s. It was prized for its heat resistance and durability, but unfortunately, when asbestos fibers are breathed in, they can cause serious health problems like lung cancer, mesothelioma, and asbestosis. That's why it is so important to have an asbestos survey done before any refurbishment or demolition work takes place.