It is rock wool board or glass?wool?board that used in curtain wall.
The glass wool used for curtain wall is thermal insulation wool.However, due to the need of fireproofing, the thermal insulation material for curtain wall normally is rock wool.
Generally,The thermal insulation materials for external wall should be distinguished from that for curtain wall. Generally the thermal insulation material for curtain wall is mineral wool and the thermal insulation material for exterior wall is polystyrene board.
