A comprehensive enquiry into Grenfell Tower unearthed a chain of structural and maintenance failures leading up to the fire. A number of structural elements in a building can be damaged from fire, across a variety of temperatures and speeds. Therefore, a collapse can occur across multiple stages of severity. The most common cause of building collapse is damage to non-structural elements, which then increases the risk of structural exposure to fire. These elements include false chimneys, roof coverings, and windows.