Glass fiber alkali-resistant mesh cloth is based on medium alkali or non-alkali glass fiber fabric, which is processed by alkali resistant coating. The product has high strength, excellent adhesion and positioning, and is widely used in wall strengthening, external wall insulation, roof waterproof and other aspects. It is also suitable for strengthening wall materials such as cement, plastic, asphalt, marble and Mosaic, and is the ideal engineering material for the construction industry. In the external wall insulation, the cracks in the wall are mainly prevented, so as to obtain a long-term waterproof effect and avoid roof leakage. Its principle is due to its excellent resistance to alkali, acid, and other chemical corrosion performance and high longitude and weft tensile strength, it can make the external wall insulation system evenly dispersed, avoid the deformation of the entire insulation structure caused by external force collision and extrusion, and play the role of "soft steel bar" in the insulation system.