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The construction period of exterior wall insulation materials is short, generally no more than 3 months, while the service life of buildings is usually more than 50 years. Therefore, in terms of the importance of personnel and property safety and the long-term use of buildings, it is necessary to reduce the damage caused by fire during the use of buildings. The expansion coefficient of the thermosetting polystyrene board ethylene foam insulation board is the same as its special bonding mortar. It is less affected by thermal expansion and contraction, and has a low risk of falling off, which effectively solves the problem of falling off.

In order to speed up the construction, the exterior wall insulation material to be used is a 90mm thick rock wool board (dry density is 101kg/m3). Although the vertical shear requirements of the rock wool board can be met under the action of the anchor bolt alone, the rock wool board has a high density and heavy weight. In order to ensure the quality and safety of the external insulation system. The side of the polystyrene board should be coated with mesh cloth. No less than 200 pieces. The 80mm wide mesh cloth is firmly pasted on the base surface with glue mortar on the wide basis, and the polystyrene board is pasted on the remaining mesh cloth later.

When starting to bond the exterior wall insulation material, the technique to speed up the construction requires that the diameter of each coating point is >150mm, and there must be no less than 8 coating points per square meter. There is a 15mm gap between the boards to accommodate installation errors. When bonding the boards, the leveling should be tapped with a rubber hammer, and it cannot be adjusted by up and down, left and right shifting, etc., so as to avoid the adhesive overflowing into the gap between the boards due to the shifting of the extruded board, forming a cold bridge, which will have a greater negative impact on the insulation system.