What should I do if it rains and the balcony window leaks?

Check the joint between the window and the wall, remove the original aging or damaged sealing material, then clean up the base, level and straighten it. The large gap between the window and the wall is filled with styrofoam, and the inside and outside, as well as the window frame and sash molding, must be sealed with styrofoam.

2. For the balcony with serious leakage, waterproof should be redone, especially the top surface and wall surface. You can also add a water baffle above the wall to reduce the influence of rain on the filling layer between the window walls. Good sealing materials should be selected during maintenance, and all leakage points should be carefully blocked.

3. Mix waterproof powder into a certain proportion of waterproof sealant to make waterproof sealant with ultra-clear adhesion, and fill the joint between glass and aluminum alloy. In some places, special glass structural adhesive will be used to repair the cracks tightly, so that the surface is flat, smooth and sealed.

Problem analysis:

Aluminum alloy window problems:

The waterproof sealing layer of aluminum alloy window is not enough, and it may age and harden and crack after a long time. There is no drainage channel in the cavity of aluminum alloy window structure, and the rainwater entering the cavity of aluminum alloy structure under the action of indoor and outdoor wind difference is not discharged in time, resulting in water pressure leakage along the wall.

Windows and building problems:

The joint between aluminum alloy window and wall is easy to leak, and failure to fill materials as required will also cause rainwater leakage in the later period.

Extended data:

After the gap between the wall and the window is filled with foaming agent, the gap between the window and the wall must be sealed with waterproof sealant outside, and the gap should not be too big. If the gap is too big, it must be filled with waterproof mortar. After the doors and windows are installed and fixed, foaming agent should be filled in the windows. After curing, they should be cut flat. Finally, the outer frame should be sealed on both sides.

Clean the wall with a clean brush first, and then apply waterproof sealant, which is not only beautiful and smooth, but also can fill the capillary cracks between the wall and the window. In this process, we should pay special attention to the wall must be dry.