GB/T 33002-2016

This standard specifies a test method for measuring the deformation of thermal insulation materials used in buildings when subjected to a defined compressive load at elevated temperatures. It is applied in the construction industry to evaluate the performance of insulation products, such as rigid foam boards or mineral wool, under conditions simulating roof or wall assemblies exposed to both mechanical stress and heat. The standard ensures that materials maintain dimensional stability and insulating effectiveness in real-world applications like flat roofs with traffic loads or facades in hot climates.