Dismantling-free thermal insulation formwork for building can be classified as 19 "nonmetallic flat plate for building". This is because the detachable thermal insulation formwork is usually made of non-metallic materials, which is used in the construction field and has the shape of a flat plate.

Demolition-free thermal insulation formwork for buildings can also be classified as "nonmetallic formwork for concrete" in 19 category. This is because the thermal insulation formwork without disassembly is usually used as an external formwork without disassembly in cast-in-place concrete projects with building energy-saving requirements.