Rock wool insulation board is currently an ideal flame-retardant, thermal insulation and sound-absorbing material for building exterior walls. It has a low thermal conductivity, and the thermal conductivity is 0.04~0.055 (w/mk). The thermal conductivity determines the thermal insulation performance of a material. Thermal conductivity refers to the temperature difference between the two sides of a material with a thickness of 1 m under the condition of stable heat transfer conditions. , the heat transferred through an area of 1 square meter, the unit is watts/meter·degree (W/(m·K), where K can be replaced by °C). Thermal conductivity is an important indicator to measure the thermal insulation performance of a material. The smaller the thermal conductivity, the less heat is transferred through the material, and the better the thermal insulation and thermal insulation performance of the material.
Rock wool insulation board has different bulk density and thickness, and its thermal conductivity is also different. The thickness of rock wool insulation board generally ranges from 30mm-200mm. The bulk density of rock wool board insulation board can vary from 40-200kg/m3. We usually choose 50-100kg/m3 rock wool board for filling, sound absorption and fire protection. If it is an external wall, it is recommended to choose a specific gravity above 120kg/m3. Rock wool board insulation board not only has good thermal insulation performance, but also has good sound absorption function. Therefore, the rock wool insulation board has lower thermal conductivity and higher sound absorption coefficient. The sound absorption effect of the rock wool insulation board mainly depends on the density of the rock wool board per unit area. In general, the higher the density, the better the sound absorption effect. the better. Because water has a high thermal conductivity, after most thermal insulation materials absorb water, its thermal insulation effect will be significantly reduced, so it is recommended that users pay attention to the waterproofing of rock wool boards when selecting and constructing.
Jishang New Building Materials is a professional manufacturer of rock wool insulation boards. The rock wool boards produced have a smooth surface, the combustion performance reaches the A-level non-combustible standard, and the temperature resistance reaches 800 degrees. The hygroscopicity is greater than or equal to 200%; the capacity can be customized according to the actual needs of users; the thermal conductivity is between 0.04 and 0.055 (w/mk). Our products have passed the strict quality inspection of various departments, and are not only widely used in construction, but also widely used in petrochemical, textile and metallurgy, electric transportation, ships and other places that are prone to fire. It is an ideal choice for your production and sales.
