rock wool
surface course
At present, the price of rock wool composite board is composed of these two aspects. At present, there are two kinds of rock wool composite plates on the market.
One is the old-fashioned rock wool composite board, which is mainly used in some temporary mobile houses.
One is the polyurethane-sealed rock wool composite board. We call it a new type of rock wool composite board, which is mainly used in high-grade industrial workshops, 4S shops, gymnasiums, supermarkets, hotels and other buildings with high requirements on the smoothness and aesthetics of external wall finishes.
The price difference between the two kinds of rock wool composite plates is nearly double. Taking 100mm rock wool composite board as an example,
The density of traditional rock wool composite board is 55kg/m? Slag cotton absorbs water easily. A ton of cotton residue is about 3,000 yuan, one square meter 16 yuan. The cost per square meter of a color steel plate with a thickness of 0.4mm is 2 1 yuan, and the adhesive for bonding rock wool and steel plate is 10 yuan per square meter. Material cost 10 yuan. Combined with the labor cost and operating cost per square meter 10 yuan, the cost of traditional rock wool board with a thickness of 100mm is about 80 yuan/square meter.
The new type of rock wool composite board is polyurethane edge-sealed rock wool, and the density of rock wool used is 120kg/m? Rock wool made of basalt and dolomite is hydrophobic. A ton of rock wool is about 4900 yuan per square meter, the cost of rock wool is 58.8 yuan per square meter, and the cost of 0.4mm thick color steel plate is 2 1 yuan per square meter. The function of polyurethane edge sealing is to prevent water and cold bridge, increase the bonding strength of rock wool board and prevent the peeling of steel plate and rock wool. Polyurethane edge sealing function per square meter 10 yuan. Rock wool and steel plate are bonded with polyurethane foam, and the cost of foam per square meter is 20 yuan. To sum up, the material cost is 58.8+21* 2+10+20 =130.8 yuan/m2, and the labor cost and operating cost are at least10 yuan/m2.
Because the cost of the new and old rock wool composite board is quite different, the use effect and time are also very different, so you need to keep your eyes open when choosing rock wool board. At present, many merchants in the market sell traditional rock wool as new rock wool, so you need to be more careful. Xi' an Jintai Green Building Technology Co., Ltd. specializes in producing new polyurethane edge-sealed rock wool composite panels, and provides free design consulting services. Welcome your inquiry!