1. Except for some parts below the third floor, all are decorated with external stone materials. The external insulation method adopts nail-hanging 70-thick rock wool insulation boards (covered with aluminum foil) - fire protection grade A; some parts below the third floor and above the third floor are made of imitation stone. Stone exterior wall coating, external insulation method uses 70 (30) thick molded polystyrene foam insulation board - fire protection grade B1, set a rock wool insulation board fire isolation zone along the floor every two floors, with a height of 300 ( The balcony area is 480, the GRC decorative eaves line and the internal and external walls are full-height dimensions), and the thickness is 70 (the balcony area is 170).
2. Construction practices of external insulation
(1) The polystyrene board and the structural base are pasted using the point frame method. The bonding area of QH-101 polystyrene board adhesive and the structural base is not less than 40%; the rock wool board and the structural base are pasted using the full bonding method. For rock wool boards with a height greater than 400 meters, the special anchors for the rock wool boards should be installed in a plum blossom arrangement with a spacing of about 500 meters.
(2) The thermal insulation protective surface layer adopts 3~5 thick QH-102 protective surface mortar compound alkali-resistant glass fiber mesh cloth and thin plastering method.
