Asbestos is a naturally occurring mineral that's been used in construction materials for many years. It's commonly found in insulation, roofing, floor tiles, and other building materials. While asbestos is a great insulator and fire retardant, exposure to it can cause serious health problems such as lung cancer and mesothelioma.

There are two types of asbestos: friable and non-friable. Friable asbestos is easily crumbled and can release fibers into the air, whereas non-friable asbestos is more tightly bound and less likely to release fibers. Regardless of which type of asbestos you have, it's imperative that you have it tested and, if necessary, removed by a certified professional.