Asbestos is a highly hazardous material that was commonly used in building construction prior to the 1980s. It was used for insulation, roofing, cement, and many other materials. Asbestos is made up of microscopic fibers that, when inhaled, can lead to serious health issues such as lung cancer and mesothelioma.

Even though asbestos is no longer being used in many building materials, it is still present in some older buildings, homes, and other structures. That is why it's important to have an asbestos test done before any renovation or demolition work.