Asbestos is a naturally occurring mineral that was widely used in building materials, insulation, and other products for many years. It was popular because of its durability and heat-resistant properties. However, asbestos has been linked to a range of serious health problems, including lung cancer, mesothelioma, and asbestosis. As a result, the use of asbestos has been banned in the UK since 1999.

Despite the ban, many buildings in the UK still contain asbestos, particularly those built before the 1980s. Asbestos can be found in a wide range of materials, including insulation, floor tiles, pipes, and cement.