Safety and environmental protection of roof insulation materials: looking at industry development from the Qiqihar collapse accident

The tragedy in Qiqihar Middle School Gymnasium On July 24, 2023, a serious collapse occurred in a middle school gymnasium in Qiqihar City, resulting in the unfortunate death of 11 people. Preliminary investigation results showed that the cause of the accident was that a large amount of perlite insulation material was piled on the roof, which caused the structure to be overloaded. This incident not only shocked the country, but also triggered widespread concern in the construction industry about the safety of roof insulation materials. Safety issues of thermal insulation materials Roof insulation materials are an important part of building energy conservation, and their safety performance directly affects the structural stability and service life of the building. Perlite is a lightweight, porous natural