Asbestos is a natural mineral that was commonly used in the construction industry until the 20th century. It is often found in building materials such as insulation, roofing, ceiling tiles, and pipes. Although asbestos was widely used due to its heat-resistance and durability, it has been banned in many countries due to its hazardous health effects.

Asbestos exposure can lead to serious respiratory issues such as lung cancer, asbestosis, and mesothelioma, which can be fatal. It is crucial to remove asbestos from your building if it's present to avoid any health risks associated with exposure.