Leakage prevention and control measures during the production and installation of aluminum doors and windows

[China Aluminum Industry Network] aluminum doors and windows production and installation leakage prevention and control measures?

a) The standard clearances around the walls and doors of doors and windows shall be controlled between 25mm and 40mm. The larger size shall not exceed 50mm and the minor shall not be less than 20mm. The window frame shall have a certain distance from the outer wall, otherwise it shall be fine. The stone concrete can only be installed and repaired after being cast. It is strictly forbidden to use inferior masonry, such as sintered mud brick or mortar to directly flatten it;

b) According to the project conditions, the cement mortar filling method should be selected rationally. First, the mortar should be filled in the cavity of the aluminum material and then installed on the wall for secondary filling. The second is to fix the aluminum frame and then fill the mortar. Both methods have their own advantages and disadvantages. By relying on the former species, it is possible to ensure that no hollowing phenomenon is formed in the aluminum cavity, but it is easy to generate cracks and leak water during the secondary filling. The second method is easy to form on the lower frame and on both sides. Filled with dissatisfaction to form empty drums;

c) cement mortar filling to control the mixing ratio of cement mortar, generally 1:2.5, to ensure the quality of cement mortar, it is recommended to add waterproof agent in cement mortar to improve the anti-leakage performance of cement mortar, pay attention to conservation, to avoid cracking;

d) Within 300mm of the outer wall surface around the door and window frame, apply two coats of waterproof paint to reduce the chance of rain leakage;

e) The wind-drawing surface or the rain-washing surface shall prevent the rain from seepage through the filling material between the door, the window and the wall, and properly consider the water stop baffle or other waterproof coating to increase the impermeability;

f) When the window frame junction is to be filled with plastic slot, the width is 5-8mm. When injecting the sealing material, remove the floating ash, mortar, etc. to make the sealing material firmly bonded to the window frame and wall. At the same time, check whether the sealing material is continuous, whether it is missing or not, especially if there are capillary holes in the corner transfer position; use two or more seals on the exterior wall of the veneer brick to avoid capillary water penetration;

g) The spacers shall not be allowed to remain in the door or window frame, and shall be filled and compacted in a timely manner after removal. Reliable bonding between the filler and the substrate shall be ensured, and the substrate shall be wet except for the residue;

h) The outdoor sill should be less than 20mm below the sill plate in the interior, and set up a smooth water slope, and the drainage of rainwater can be unblocked to prevent the penetration of accumulated water. Aluminum doors and windows must have a certain distance from the wall to avoid direct rainwater scouring.

i) The materials, specifications and connection methods of the door and window connector shall comply with the requirements of the local "Aluminum Doors and Windows Technical Regulations". The anchor shall be sealed with mortar or mortar in time to avoid the movement of the sealing material caused by the wind load.

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