Asbestos is a hazardous material that was commonly used in the construction of buildings in the UK throughout the 20th century. It was widely used as insulation, flooring, roofing, and other building materials due to its heat-resistant and fire-resistant properties.

However, the use of asbestos was banned in the UK in 1999 due to its health risks. Asbestos fibres are microscopic and when inhaled, they can cause a range of life-threatening illnesses such as lung cancer, mesothelioma, and asbestosis. Although the use of asbestos has been banned, it still remains in many buildings today.