Taishi rock wool fire barrier lamella is specially designed for the purpose of enhancing the fire proofing capability of the external wall insulation works. Our rock wool  lamella can be used with combustible external wall insulation materials as a fire barrier in order to improve the fire proofing capability of the external wall insulation works. This product has the quality of high compression strength, high tensile strength, low water absorption, good dimensional stability, aging resistant, no thermal expansion or contraction etc.