钢结构房屋最大的问题是:一旦起火,高温将迅速降低钢材料的结构强度,使其面临倒塌的危险。建筑物中现有的钢结构通常涂有阻燃层,即使着火,它们也能保证给钢材提供2小时的保护,从而确保屋内人员有足够的安全撤离时间。但是,科学家们并不满意其效果,因为要达到安全需求,涂层必须相当厚, The biggest problem with steel-framed houses is that once a fire breaks out, high temperatures will rapidly reduce the structural strength of the steel material, putting it at risk of collapse. The existing steel structures in buildings are usually coated with fire-retardant layers. Even if there is a fire, they can guarantee the protection of the steel for 2 hours, so as to ensure that the people in the house have sufficient time for safe evacuation. However, scientists are not satisfied with their effectiveness because the coating must be quite thick to meet safety requirements.