Rock wool sandwich polyurethane seal on both sides give full play to the unique properties of rock wool composite board construction Rockwool core material in fire protection, thermal insulation, acoustic insulation and other aspects have a significant effect; while retaining polyurethane plastic, airtight , high-strength, non-absorbent advantages. The advent of this material is a revolutionary building works changing rock wool composite panels mounted so that polyurethane, the advantages of rock wool have been fully fused rock wool composite panels companies that reject the existence of the shortcomings of traditional sheet. In a sense, both sides sealed wool polyurethane sandwich panels can not be compared with ordinary wool sandwich. The same also applies wallboard installation method similar pay-off, in addition: should demarcate its supporting surface by verticality of rock wool composite panels to ensure the formation of a vertical plane of the wall. After the roof and wall panels installed to deal with mounting accessories line for the second place, in order to ensure that the level cornice lines, roof lines, window, door and corner lines of straightness and squareness. Ignore this step, only the visual and empirical methods, is not up to the quality requirements of the installation.