During the operation of a building, energy loss through the exterior walls accounts for 23% -34%. Therefore, the exterior wall is not only a sensitive part of energy consumption, but also a key part of exterior wall insulation. External walls, roofs, floors, and other areas are generally insulated by laying insulation materials. External walls are insulated by transparent protective structures such as doors, windows, and glass curtain walls.

The foundation wall should be sturdy and flat, and protruding parts should be removed and leveled. The verticality and flatness should be within the allowable deviation range, and there should be no defects such as hollowing, layering, cracks, etc. Structural components should be dismantled and leveled as much as possible, and there are cracks on multiple parts of the exterior wall. When laying the mesh cloth, there is not enough overlap treatment at the junction, and the windows do not have diagonal ribs, so additional mesh cloth is laid. Other reasons are external decorative materials (putty or paint, etc.) and their construction issues. The engineering example of the external insulation system being blown away by wind is the result of negative wind pressure.

For all elevation horizontal and vertical lines, the baseline starting line must be determined first, and then the baseline starting line must be drawn at each elevation. Finally, multiple control lines are determined on each facade based on the drawing style, which facilitates control and minimizes installation errors during the board laying process. At the same time, double lines must be snapped when threading to ensure that the seams between the sheets are within the controlled range.

The impact of water seepage on external wall insulation is widely adopted in cold regions. New building materials and components are widely used to improve the insulation performance of the enclosure structure, enhance the airtightness of the enclosure structure, reduce heat transfer loss and cold air penetration heat loss, thereby meeting the requirements of building energy efficiency standards and achieving the effect of building energy efficiency.