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[outside wall waterproof specification]
1) The gap between the door and window frame and the wall should be filled with polymer cement waterproof mortar; the outer wall waterproof layer should extend to the door and window frame, the groove should be reserved between the waterproof layer and the door and window frame, brushed with polymer cement waterproof coating, and Filling and sealing materials; dripping lines should be made on the outer openings of doors and windows; on the evening, the sill should be set with an external drainage gradient of not less than 5%.
2) The upper part of the waist line, sill plate and window sill of the protruding wall should be treated with water-repellent treatment, and an outward drainage slope of not less than 3% should be set. The lower part should be made of a dripping line, and the intersection with the wall surface should be rounded.
3) The awning shall be set with an external drainage gradient of not less than 1%. The dripping line shall be used at the lower edge of the outer mouth; the waterproof layer at the intersection of the awning and the outer wall shall be continuous; the awning waterproof layer shall be turned down along the outer mouth to the dripping line. .
4) The balcony shall be provided with a drainage gradient of not less than 1% to the water fall-off, and the groove shall be filled with sealing material around the water outlet. The drip line should be done along the lower edge of the balcony.
5) The deformation joint of the outer wall must be waterproofed. 
6) Pipes that pass through the external wall should adopt casing. The casing should be high inside and outside low, and the slope should not be less than 5%. The casing should be waterproof sealed.
7) The top pressure of the parapet should adopt cast-in-place reinforced concrete or metal pressure top, and the top should be sloped inwards with a slope of not less than 2%. When the concrete is pressed into the roof, the outer wall waterproof layer shall extend to the dripping line inside the top of the pressure; when the metal top is used, the outer wall waterproof layer shall be the top of the pressure top, and the metal top shall be fixed with special metal fittings.
8) The sealing material shall be tightly closed around the embedded part of the external wall, and the sealing material and the waterproof layer shall be continuous.
9) Outside the air conditioning mouth, vents, equipment openings and other openings, the bottom of the mouth should be set to the outdoor direction of not less than 5% of the drainage slope or to take measures to prevent rainwater pouring.
10) The external sill, window side or independent air-conditioner is an important part of the external wall waterproofing system. It is also equivalent to a cabin surface in the storm, and the root of the masonry adjacent to the air-conditioner should be set. The same concrete wall with a wall thickness of not less than 200mm is also a problem that is easily overlooked in design and construction. All layers, sidewalls, and roofs of air-conditioners should be made of polymer cement waterproof mortar and polymer cement waterproof coating as the waterproof layer. Each floor board should have a drainage slope of no less than 5% to the peripherals. If aluminum alloy blinds are installed outside, the lower part of the window frame should have a drainage channel. The bottom of each floor board of the air-conditioning machine should have a drip line groove to ensure internal No water. 
Xiao Bian concludes: The above introduced the exterior wall waterproof specification for everyone, hope to be helpful to everybody. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
What is the construction standard of the waterproof specifications of the external wall?
This is the external wall waterproofing project. Its role is to prevent the outer wall from being eroded by water. With the waterproofing of the outer wall, we can ensure that our building structure and interior space are free from pollution and damage, can increase the life span of buildings, and enable us to live. More healthy, comfortable and comfortable. So what are the specifications of the external wall waterproofing ?