First, the cause of the window leakage
1. Cracks in the corner of the window
The corner of the window is the weak point of stress. If it is not reinforced, it will often crack because the foundation or structure sinks. When it rains, the rain hits the wall and will penetrate into the room through cracks.
2. The decorative surface of the external wall is leaking.
Some tiles or real stone paint exterior walls look hard and firm. However, there will inevitably be cracks invisible to the naked eye, and these cracks may have the problem of water seepage. Once water permeates the decorative surface and reaches the block wall, if the wall is not waterproof, it is easy to cause water leakage.
3, the windowsill slope is not enough
Although we all know that the position of the window sill needs to be drained to prevent rainwater from accumulating on the edge of the window frame and causing water leakage. But in fact, the slope of the windowsill is insufficient, and mosaics or small-sized tiles are attached to the windowsill, resulting in slow aproll and water accumulation. These problems also bring the hidden danger of water leakage.
4. The joint between the window frame and the wall is not well sealed.
The joint between window frame and wall is not sealed, which is the most common water leakage problem.
One of the main reasons for this problem is that many owners replaced the windows installed in the original civil construction stage during the renovation. The reason why the windows often leak is the installation process. Generally, the windows installed in the decoration stage are filled with foam glue at the joint between the window frame and the wall. The filling of this kind of styrofoam is uneven, that is, in a window frame, only a few places with large gaps are filled with styrofoam. Its function is to fill the interior of aluminum, which is convenient for later window frames to be putty, so this kind of styrofoam does not play a waterproof role. Relatively speaking, the windows in the civil construction stage are filled with cement mortar, and its waterproof effect is much better.
In addition, because the replaced window does not rely on foam glue for waterproofing, its waterproof structure can only rely on a circle of sealant on the edge of the window frame, that is, glass glue, to play a role in blocking water. And if this circle of sealant is aging, or it is not firmly bonded with the wall, cracks will appear, causing water leakage.
In fact, this situation is still very common. For example, the exterior walls of some old houses are painted or painted with stone. In this case, the glass glue is difficult to stick to the wall.
Second, the advantages of waterproof coating
1, waterproof coating is a viscous liquid, which can form a seamless waterproof coating film after brushing and curing. There are many special-shaped structures in the waterproof parts of the home, and it is difficult to construct waterproof in the corners of yin and yang and narrow places. Liquid waterproof coating can form a complete waterproof coating film on the surface of these parts.
2. Waterproof coating construction belongs to cold operation, and the operation is simple and convenient, which can greatly shorten the construction period, facilitate waterproof construction personnel and reduce labor intensity.
3. The coating film formed after coating and curing with waterproof coating has light weight. For special-shaped roofs, it will be more convenient to use waterproof paint for construction.
4. The waterproof coating has strong weather resistance, good aging resistance, good acid and alkali resistance and good ductility, and can adapt to local deformation of the base and slight settlement of the building structure.
I hope this article will be helpful to everyone. For more information about home appliances, please lock in Bian Xiao. We have always insisted on bringing you first-hand information about home and escorting everyone's happy home life.