Dongfang 's exterior wall external insulation Rockwool Board (DFFRB series) is mainly used as a fireproof insulation material in exterior wall external insulation thin plastering systems and dry hanging curtain wall insulation systems. It has good compressive strength and tensile strength perpendicular to the surface, excellent hydrophobicity and moisture resistance, and is suitable for various masonry or concrete and other dense structure base walls. It can be used for external insulation of new and expanded walls, as well as for energy-saving renovation of external walls of existing buildings. This product has an A-level non combustible fire rating and high resistance to high temperature shrinkage, which can maintain the stability of the system structure in the event of a fire.