How to solve the water leakage on both sides of the bay window sill in the master bedroom?

It's useless to spray a layer of wall sandblasting, now you know what the problem is. Find a marble one to spread on the outside of your windowsill and make a slope outward. It's okay to buy a tile, just find someone to cut it. Or find someone else's renovation tile waste.

The first thing to solve is the problem of loose water on the window sill (outward slope).

If there is water on the window sill, most of the windows will be seepage.

Exterior wall stickers can be used in batches. Then apply exterior paint.

After the root of the platen is raised. Silicone can be used to seal the platen with a gap between the wall and the wall.

Use glass glue first and then paint with plugging spirit.

First, the reason for the window sill:

1. When the prefabricated window sill plate is installed, the wall is chiseled, and the slurry under the plate is loose, so that the rainwater flows down the wall to the inner seam of the frame and infiltrates into the room from the window sill board. There is a gap between the window frame and the window sill plate, and the water tightness is poor.

2. The lintel and window sill do not make a drip groove and a slope of flowing water. The exterior window sill is higher than the indoor window sill plate.

3. The plastering layer of the window sill plate does not cause water leakage due to defects such as downstream slope or slope facing inward and window sill plate cracking.

2. Preventive measures:

1. The outdoor window sill should be 20mm lower than the indoor window sill plate, and the slope should be set up to drain the rainwater smoothly. The gap between the outer frame of the metal window and the indoor window sill plate must be closed with weather-resistant and high-elasticity sealant to ensure water tightness and prevent leakage.

2. The outdoor window sill should be made of fine stone concrete.

3. The lintel and window sill should make sufficient drip grooves and flowing water slopes. The depth and width of the drip groove should not be less than 10mm, or LB-94TN structural adhesive should be used to paste strip bricks as the drip line, and the drainage slope of the window sill should be 10%.

Third, the treatment method of window sill leakage:

1. The treatment method of the gap between the lower frame of the window frame and the window sill plate and the crack of the wall: remove the facing bricks within 500mm around the crack part, and make 20 measures for the cracked part0mm was chiseled and churned, and LB-7 neoprene latex cement slurry was poured for grouting and plugging treatment.

After grouting, thick LB-14 elastic cement, or 5 7mm thick LB-7 neoprene latex cement mortar, or 20 25mm thick LB-23 high-efficiency waterproof powder anti-cracking cement mortar (mixed with LB-19 Tyni fiber) were applied for local waterproofing treatment.

2. The lintel and window sill should be chiseled and repaired if there is no dripping water, and the slope of the window sill should be chiseled out without flowing water, and the LB-7 neoprene latex polymer cement mortar or LB-23 high-efficiency waterproof powder anti-cracking cement mortar should be smeared, and smoothed, compacted and calendered, and cured.