Which material is banned as insulation in buildings due to health hazards?

Asbestos is banned as insulation in buildings due to its severe health hazards, primarily related to its inhalation. It is a naturally occurring mineral fiber that was widely used for its insulation properties and fire resistance in construction materials. However, research has conclusively linked asbestos exposure to serious health issues, such as asbestosis, lung cancer, and mesothelioma, a rare form of cancer that affects the lining of the lungs and other organs. Due to these significant health risks, many countries have implemented bans or strict regulations against the use of asbestos in construction and insulation materials.

In contrast, fiberglass, polyurethane, and cellulose insulation do not carry the same level of health risks associated with asbestos. While proper handling is required to ensure safety when working with fiberglass—which can cause skin irritation and respiratory issues when fibers are disturbed—these materials do not have the severe long-term health consequences associated with asbestos exposure. Therefore, asbestos remains a notable example of a building insulation material that has been banned due to its potential to cause serious health issues.