Does the construction of external wall rock wool need qualification?

Qualifications are definitely needed. Without qualification, the construction team dare not use it. Qualified construction teams are more assured and safer to use.

The full name of external wall construction is "the qualification of contracting enterprise specialized in architectural decoration engineering". The qualification grade standards for contractors of anti-corrosion and thermal insulation projects are divided into Grade I, Grade II and Grade III.

The external wall rock wool board is a kind of thermal insulation material. The raw materials of the external wall rock wool board are all kinds of natural rocks. After natural rocks are melted at high temperature, artificial inorganic fibers are made by high-speed centrifugal equipment, and special binder and dustproof oil are added at the same time, and then heated and solidified to form the external wall rock wool board.