The exterior wall insulation board is used as the decorative layer, and the waterproof layer should be constructed between the leveling layer and the block bonding layer. The coating decorative layer is used, and the waterproof layer should be between the leveling layer and the coating decorative layer. Whether in the harsh winter of northern regions or the scorching heat of southern China, the energy-saving rate of exterior wall insulation and decoration integrated panels can meet energy-saving regulations. The high weather resistance of the insulation and decoration panel decorative layer is more capable of resisting acid rain, salt spray and other attacks.

During the construction period of the external wall insulation board project and within 24 hours after completion, the base layer and ambient air temperature should not be lower than 5 ℃. Avoid direct sunlight exposure in summer. Construction shall not be carried out in windy weather or rainy weather above 5 ji. Internally pasted reinforced plastering gypsum polystyrene board, which means pasting polystyrene board on the wall, using plastering gypsum as the surface layer, with a thickness of 8mm~10mm, and reinforced with fiberglass mesh cloth.

The exterior wall insulation board engineering board has repeatedly experienced problems such as cracking, fading, yellowing, and even peeling due to cutting corners in raw materials, and the industry's development is uneven. During the installation process of the insulation decorative panel, there is a gap of about 6mm between the panels.

During the design and construction of the project, the local wall renovation office required the external wall insulation material to have a combustion performance of A, and the available materials were limited at that time. Most developers choose the form of polyurethane insulation layer and vitrified microbead leveling layer.