As an emerging thermal insulation material for exterior walls, rock wool insulation slab has been widely used in insulation of building exterior walls and roof. The following items should be paid attention to during construction:

     1. Construction should start from the bottom to the top, and start from the supporting part, the rock wool board is pasted on the wall with bonding mortar. The bonding area should be greater than 35%, and the bonding area of first layer should be greater than 50%. If the outer sheath is heavier, 4-6 insulation nails should be nailed per square meter.
     2. After bonding, stop for 24 hours before proceeding with the protective layer construction.
     3. After another 24 hours, the external surface construction can be carried out.
     4. The thickness and density of the rock wool insulation slab should be in accordance with the design requirements, and in cold areas thicker rock wool slab should be used. Rock wool insulation slab integrates building insulation and decoration.
     Rock wool insulation slab has the characteristics of higher refractory temperature, higher melting point and smaller high-temperature linear shrinkage. At the same time, it has good water-repellent and moisture-proof performance, and will not corrode metals.