Rock wool is a kind of inorganic fiber material, and its open-hole fiber structure makes it have excellent thermal insulation, fire and flame retardant properties. It plays an important role in the field of building insulation and fire prevention. Regarding whether the rock wool insulation layer can be exposed, today, we will discuss this issue.

Rock wool is mainly made of mineral fiber, and then bonded together solidified inorganic fiber material. These fibers are easy to fall off when subjected to external forces, forming dust. Long-term inhalation of this dust will cause harm to human health, especially the damage to the respiratory system is more serious. Therefore, the rock wool insulation itself is not suitable for exposure.

In addition, exposed rockwool is susceptible to the external environment. First of all, the surface of rockwool is easy to accumulate ash and pollution, and long-term exposure may lead to decreased thermal insulation performance. In addition, the exposed rockwool insulation layer may also be affected by environmental factors, such as wind and rain erosion, ultraviolet radiation, etc., which may lead to accelerated aging and damage of the insulation layer.

Exposed rockwool insulation may also affect the appearance of the building. The color of rockwool is usually earth yellow, which may make the appearance of the building appear monotonous and lack of beauty. Therefore, in order to improve the overall beauty of the building, decorative treatment is usually carried out on the outside of the external wall insulation layer.

According to China's relevant standards, when the insulation layer is constructed, the insulation layer without the protective surface layer shall not exceed the height of three floors, and the exposed layer shall not exceed 2 days. In case of public holidays or holidays during the external insulation construction, the exposed insulation layer installed should be treated with fire prevention, and the remaining insulation materials in the working area should be stacked and managed according to regulations.

Therefore, after the installation of the rock wool insulation layer, it is usually necessary to carry out an outer covering, such as dry hanging stone, aluminum plate, etc., to protect the insulation layer from external factors.

In summary, the rock wool insulation layer is not suitable for exposure. We should be fully aware of the hazards and hidden dangers of exposed insulation layer, take effective measures to protect and maintain, to ensure the safety and stability of the building.