First of all, the price of rock wool
External wall rock wool board is also divided into national standard and non-standard prices, which are not the same. You know how much money is, and you know how much money is per square meter.
Different specifications, densities and technical parameters of rock wool board will lead to different prices. The national standard 2800/ ton basalt content is 98%, and the non-standard 2500/ ton basalt content is also above 90%. There are also cheap exterior wall rock wool boards with low Wu Yan content and low price.
Freda Chemical Building Materials will quote you the price of ordinary mineral wool rock wool board = 200 yuan per ton, hydrophobic rock wool board = 2,200 yuan per ton, basalt rock wool board content 30% = 2,500 yuan per ton, basalt rock wool board content 50% = 2,700 yuan per ton, and national standard rock wool board = 3,200 yuan per ton.
(Price source network, for reference only)
Second, what is rock wool
External wall rock wool board is also called external wall thermal insulation rock wool board. The raw materials of the external wall rock wool board are all kinds of natural rocks. After natural rocks are melted at high temperature, artificial inorganic fibers are made by high-speed centrifugal equipment. At the same time, special adhesive and dust-proof oil are added, and then heated and solidified to form our external wall rock wool board!
The external wall rock wool board has the characteristics of high compressive strength and tensile strength, low water absorption and hygroscopicity, good dimensional stability, no thermal expansion and contraction, aging resistance, sound absorption and so on. , and can be compatible with the external wall system, providing effective insulation, energy saving, fire prevention, sound absorption and other protection for the building external wall insulation system.
The system structure of exterior wall rock wool board is mainly composed of adhesive layer, insulation layer, plastering layer, facing layer and accessories.
The adhesive layer belongs to the building, which is between the bottom layer and the surface layer. The upper and lower layers are firmly bonded together with cementing materials, and the filler mainly comes from inorganic substances.
Insulation layer In order to avoid and reduce the heat loss of steam turbine to the environment, the insulation material layer laid on the outer surface of steam turbine and pipeline is mainly filled with rock wool fiber, a certain amount of organic matter, moisture and adhesive.
The decorative layer should be light functional paint such as decorative mortar, decorative mortar, or water-based exterior wall paint with outstanding air permeability, so that the exterior wall rock wool board can maintain its light characteristics and increase its aesthetics.
All kinds of paints are mainly used for accessories. On the one hand, it increases the color of the surface of the external wall rock wool board, which can be applied to any environment. On the other hand, coatings can play the role of flame retardant and heat preservation to a certain extent.
Whether in the construction process of some thermal insulation projects or in the selection process of daily thermal insulation building materials at home, we will find that the figure of rock wool, or rock wool particles, or rock wool boards are all made of natural materials such as rock wool. The products made by special processing are not only stable in performance, but also environmentally friendly and simple in construction, which can reduce unnecessary labor costs. In addition, qualified rock wool boards can be provided.