Rock wool board and glass wool board are both exterior wall thermal insulation materials, with excellent thermal insulation performance, thermal conductivity system, long use time, wide range, etc., they are close to each other, whose performance is better, let's see.
Advantages of rock wool board
Rock wool board has thermal insulation performance, which is the basic characteristic of rock wool board products. Their thermal conductivity is usually between 0.03 and 0.047w / (Mok) at room temperature (about 25 ℃). Combustion performance, the combustion performance of rock wool board products depends on the number of combustible adhesives. Rock wool board belongs to inorganic silicate fiber, which is nonflammable. In the process of processing products, sometimes organic binders or additives are added, which will have a certain impact on the combustion performance of products.
Rock wool board has excellent sound insulation and absorption performance. Its absorption mechanism is that the product has porous structure. When the sound wave passes through, friction occurs due to the effect of flow resistance, which makes part of the sound energy absorbed by the fiber and hinders the transmission of sound wave. Widely used in shipbuilding, metallurgy, power, construction and other industries. The product is convenient in construction and installation, with remarkable energy-saving effect and high performance price ratio.
Characteristics of glass wool board
Glass wool board has the advantages of light volume weight, small thermal conductivity, large absorption coefficient and good flame retardancy. It can be widely used in thermal equipment, air conditioning constant temperature, hot and cold pipes, cold storage and preservation, and building insulation, heat insulation, sound insulation and other aspects.
Compared with rock wool board, glass wool board has low bulk density, less slag ball content, low thermal conductivity, long service life and large fiber toughness. However, the rock wool board is high in service temperature, and it is about 600 ℃, while the glass wool board is only about 260 ℃.
Through the above comparison, it can be said that in terms of fire protection and heat preservation, rock wool board is better than others, but in terms of weight and thermal conductivity, glass wool board is better than others. Therefore, the specific selection of materials depends on where they are used, the specific analysis of the specific situation, and the selection of suitable materials is the most important thing. .