What preparations should be made before the construction of the external wall insulation board?

1. The base wall should meet the requirements of the Code for Construction Quality Acceptance of Concrete Structure Engineering (GB50204-2002) and the Code for Acceptance of Construction Quality of Masonry Engineering (GB50203-2002) and the corresponding quality acceptance specifications for the base wall and pass the acceptance. .

2. The vertical main keel or main keel connector on the wall is installed and checked and checked again.

3. The surface of the base layer should be clean, and there should be no oil stains and mold release agents to prevent the adhesive deposits. The empty and loose parts should be removed.

4. The horizontal fixing bracket of the scaffolding can be fixed indoors by roofing or window, etc., to avoid the piping of the scaffolding on the large wall surface. If the hanging basket is used, the steel head on the wall surface should be completely removed before construction. And the wall pulls the ribs and the wall-mounted steel pipe frame.

5. Check the foundation wall surface with a ruler of not less than 2m, and carry out local leveling. The boundary of the structure must be hanged with steel wire mesh for crack strengthening.

6. All doors and window frames have been installed. All doors and window openings have been smoothed and waterproofed, and the lower edge of the window sill should be flushed.

7, the downpipe bracket should be installed in advance and waterproof, air conditioning shelves, bay windows, awnings, etc. should be smoothed to do the water treatment.

8. The ambient temperature during construction should be no less than 5 °C, the wind should be no more than 5, and the wind speed should not be greater than 10 m/s. It is strictly forbidden to construct during the rainy season. Rainfall measures should be taken during the construction of the rain period. The base wall should be smooth, straight and solid, and should meet the requirements of the construction acceptance specification. The deviation of the wall and the presence of bulges, hollow drums, loose and obstructed dirt should be removed and leveled with mortar.