What are the causes of leaky windows in your house?

First of all, we first check whether there is water seepage between the window sash and the glass, which depends on whether the glass glue between the window sash and the glass is damaged. If there is damage, water seepage is very likely to occur in rainy days. Personally, the quality of the house can be divided into two categories:

The first category is the quality of the house itself, and the second category is the quality of the house installation. Dig a groove two to three centimeters wide on the window sill in the house, the length should be one to two centimeters longer than the window, and the depth should be to the concrete, clean the cement mortar in the groove, and then smooth it with water.

If the window glass is damaged and the accessories are faulty, etc., resulting in water leakage, the real estate company is responsible for the warranty replacement during the warranty period of such delivery. If the warranty period has passed, the owner repairs it by himself. 2. If the sealing and waterproofing around the window is not done, the warranty period will not be responsible for the real estate.

Secondly, we check whether there is a drain hole on the side of the window frame near the outside. Generally, there is, and it is also possible that the exterior wall is covered underneath during construction, resulting in water not being discharged to the outside.

Clause. 1. If it is an old house for a long time, there are always these problems, because of the aging of the wall, the wall around the window will seep water. This is because the expiration date has passed, so it is not a quality problem, so you can only go to your own maintenance.

Increase the thickness of the exterior wall to slow down the time of heat transfer and achieve the purpose of thermal insulation; Choose materials with high porosity and light density for exterior walls, such as ceramsite concrete, aerated concrete, etc.; The combination of a variety of materials is used to solve the dual problems of thermal insulation and load-bearing.

Finally, look at whether there is water seepage between the window frame and the wall. This requires destroying the indoor window sill to see if the lower part of the window frame is plugged with cement mortar (if it is foam glue, remove it immediately and reprocess it.) When doing the secondary structure, the inner hole of the window is too large, and the pressing table is too low, resulting in a gap of 5-15 cm between the pressing table and the window protective frame when installing the window protective frame, or even larger.

During the construction process, the workers directly fill the bricks or garbage in the interval and reinforce it with mortar.

Water leakage due to loose and deformed windows: Water leaks caused by loosening between windows and frames are the most common cause. On the one hand, when the door is closed, the window will also resonate and vibrate, and the gap between the window and the wall will become larger and larger over time; On the other hand, it is caused by the poor quality of the window, the strength of the poor quality window is not enough, it is easy to deform, and the mortar layer at the edge of the window frame will crack and fall off soon after use, which will cause leakage.

The reason for the leakage of the windows of the house is that the waterproofing of the exterior wall of the house is not done well, and the waterproofing function of the exterior wall should be redone, otherwise it will take too long, not only the windows will continue to leak, but even the interior walls of the house will leak.

The interface between the window frame and the wall is not tight, and the direct interface of the edge of the window frame is not tight, resulting in a large amount of water flowing directly into the room from the window sills and window cracks.

There are cracks in the wall outside the window sill, and rainwater flows along the cracks, making the insulation film in the room moist.

The rubber material of the sealing mouth is substandard and completely inelastic. It is impossible to lock the windows all the time, and the rain will naturally flow in.

The causes of window leakage are: water leakage caused by non-standard window installation, water leakage caused by loose and deformed windows, water leakage caused by poor drainage of window groove drainage holes, and water leakage caused by damage to the waterproof layer of the wall near the window. How to treat the reed for window leakage:

Water leakage caused by irregular window installation: re-trim the window sill, and the outdoor window sill with the reed belt should be 20mm lower than the indoor window sill plate, and set up a downstream slope to smooth the rainwater drainage. Loose and deformed windows cause water leakage

Reprocess the joints, inspect the joints between the windows and the walls, remove the original aged or broken seals, and then clean and straighten the base layer.

Leakage caused by poor drainage of window drain holes: Retrim the drain and keep the drain unobstructed to solve the problem by retrimming the drain and keeping the drain unobstructed by the blockage of the window frame drain groove. If there is a problem with the location of the drainage hole, the original hole needs to be closed and reopened.

Water leakage caused by damage to the waterproofing layer of the wall near the window: Redo the waterproofing layer of the window wall. For balconies with serious leakage, the waterproofing should be redone, especially the waterproofing of the top surface and the wall.

It is also possible to add a water baffle above the wall to reduce the impact of rainwater on the infill layer between the window and the wall. When repairing, good sealing materials should be selected, and all leakage points should be carefully sealed.

The vast majority of owners have encountered the problem of window leakage, once the window leaks, it is really a headache for the owners, if you want to completely solve the problem of window leakage, you should first understand the cause of water leakage. So, what are the causes of window leakage? Next, let's take you to understand it in detail!

Cause. 1. The window is loose and deformed, resulting in water leakage.

Water leaks caused by loosening between windows and frames are a common cause. On the one hand, when the door is closed, the window will also resonate and vibrate, and over time, the gap between the window and the wall will become larger and larger; On the other hand, it is caused by the poor quality of the window, the strength of the poor quality window is not enough, it is easy to deform, and the mortar layer on the edge of the window frame will crack and fall off soon after use, which will cause the window to leak.

Cause. 2. Water leakage caused by non-standard window installation.

When the window is installed, the lintel and window sill do not make a drip groove and the slope of the flowing water; The outdoor window sill is higher than the indoor window sill board, and the plastering layer of the window sill board does not make defects such as the slope or slope facing inward and the window sill plate cracking, resulting in water leakage in the window cavity posture.

Cause. 3. The waterproof layer of the wall near the window is damaged, resulting in water leakage.

In older houses, the waterproof layer of the walls around the windows is damaged, and water leakage is likely to occur; In addition, when the windows are replaced in the renovation of the old house, the damage of the waterproof layer of the exterior wall caused by the unprofessional removal of the windows, and if it is not repaired in time, it is very likely that there will be water leakage after the installation of new windows.

Cause. Fourth, the drainage hole of the window groove is not well drained, resulting in water leakage.

Some windows may not have drainage holes, especially sliding windows, all the rainwater accumulates in the sliding frame and cannot be drained, and it seeps into the house when it is full; Or when the external window sill is tiled, the drainage hole is blocked, and the rainwater in the sliding frame slot seeps into the wall and causes water leakage; In addition, after a long period of use, the drainage hole may be blocked by stolen goods, resulting in the water flow not being discharged in time.