Advantages of rock wool board exterior wall insulation materials: excellent thermal insulation performance, mature technology, relatively convenient construction, and high cost performance. Disadvantages: excessive water absorption. Reference price: 400-1100 yuan/cubic meter. The appearance quality of the wall is good and there are no obvious signs. The structure of the exterior wall plastering (or insulation cracking mortar) must be improved, the wall surface is basically dry, the moisture content is less than 10%, and the pH value is less than 10. The surface of the base is clean and free of debris and oil.

The roof, legs, doors and windows, and deformation joints are pre-coated with narrow alkali-resistant mesh cloth for system edge sealing treatment. When EPS boards and XPS boards are not standard or irregular, hot wires or other tools should be used for cutting. The gap must be perpendicular to the surface of the steel plate. In the corner of the entire wall, the minimum size of the board exceeds 300 mm. Mechanically fixed EPS wire mesh is not suitable for aerated concrete and lightweight aggregate concrete substrates. The insertion depth of EPS single-sided wire mesh is not less than 35mm, and the non-penetration thickness is not less than 15mm. The insertion angle of the belly line is consistent, and the error does not exceed 3 degrees.

Advantages: good insulation performance, mature I technology application, and excellent cost performance. Disadvantages: fire resistance is very general, impact resistance is very poor. It is easy to break during use and has poor water resistance. Reference price: 60-80 yuan/cubic

The external wall scaffolding must be installed, the distance from the wall should be controlled within 25-30cm, and the through-wall steel pipe should be changed to the door and window opening. All waterproof and moisture-proof parts (balcony feet and external wall feet, facade air conditioning feet, etc.) must be plastered at a height of 40 cm or more. The brackets for water pipes, air conditioners, etc. must be installed on the external wall first, and the thickness of the external insulation system should be considered.

The anchor bolts are inserted into the concrete wall to a depth of not less than 50mm and are firmly tied to the steel bars in the wall; the peripheral grooves between the EPS boards are glued with polystyrene glue; the lower interface EPS board should be repaired and must not be grouted or knotted. Sheet. Interface. The surrounding grooves between EPS steel sheets shall be glued with polystyrene glue; the steel mesh at the horizontal joints between adjacent sheets shall be disconnected; the vertical joints between adjacent sheets shall be galvanized with steel wire. Reliable measures shall be taken to ensure that the installation position of EPS steel mesh and auxiliary fixings is accurate.