Broken bridge aluminum doors and windows the main reason for dripping water from the window foot is that the drainage system design of the profile is not reasonable enough, and the installation and construction are not done properly. When rainwater penetrates into the profile cavity through the gap between the sealant strip and the glass, it cannot be discharged in time, resulting in water accumulation. After a long time, rainwater will penetrate into the wall through the Assembly gap of the profile, thus damaging the interior decoration effect. Therefore, when decorating, we must make a good drainage system to make it waterproof and impeccable. The design principle of waterproof system of insulation broken bridge aluminum alloy doors and windows is very simple, that is, the principle of pressure balance. As long as we use this thinking principle and design a set of drainage channels, we can completely solve the possibility of rainwater accumulation by structural technology, thus avoiding the occurrence of rainwater leakage. Specifically analyze the waterproof system design of broken bridge aluminum doors and windows.
There are several possibilities for broken bridge aluminum doors and windows window foot dripping.
1. Where Do Broken Bridge aluminum doors and windows leaks mainly occur?
Answer: the leakage of doors and windows mainly lies in the combination of windows and walls, which is usually related to the windowsill, floor and tile.
2. What are the situations that cause the leakage of doors and windows?
Answer:
The first situation is that the exterior wall silicon sealant is not well constructed, or some places are not fully well silicon sealant;
The second situation: the original building design has no dripping Eaves, which makes the rain slowly leak silicon sealant along the wall and flow into the indoor ceiling when it rains heavily;
The third situation: the high and low phenomenon of the window sill of the outer wall makes the rain fall back or flow out, and the soaking for a long time will make silicon sealant soft, thus the waterproof effect will not be achieved;
The fourth situation: continuous heavy rain makes the drainage of window drainage holes not timely, forming the phenomenon of rainwater backward irrigation, even the rainwater flows into the window through the drainage holes, thus flowing to the home floor.
The fifth situation: also the worst situation is caused by cracks and seepage of exterior wall or failure of roof waterproofing.
3. What are the solutions to broken bridge aluminum doors and windows leakage?
Answer: 1. Check whether the exterior wall silicon sealant is well constructed. Sometimes a small hole will cause rainwater to penetrate into the home;
2. For the place decided by the destruction of the window sill, when installing the doors and windows, you must first apply a layer of cement, and then lay a layer of silicon sealant on the joint part of the cement surface and the window.
3. After the window frame is installed, the window sill is finally wiped off a slope with cement, so that the rain will not accumulate water and the silicon sealant will not be soaked and peeled.
4. It is best to install the window in the drip eaves. Do not install the window too much to the outside in order to expand the indoor space. If there is no drip eaves, the chance of window leakage is greater. If the original building does not have dripping eaves, it is best to simply cut one out, or add a layer of iron sheet along the window, etc.
5. For broken bridge aluminum doors and windows that have been installed for more than a few years, maintenance of exterior wall silicon sealant should be carried out to check whether cracking is silicon sealant, so as to repair the cracking in time.
6. For families with conditions, it is best to carry out waterproof coating construction on the outer window sill wall of doors and windows, and brush a layer of waterproof coating to make it more reliable.
Node drainage route analysis:
1. Batch water bar, EPDM Casement between glass and rubber strip will support a large amount of rainwater along the outer wall of the profile;
2. A small amount of rainwater penetrates into the profile cavity at the lower part of the glass through the gap, and opens drainage holes in the outer cavity of the profile; So that a small amount of water is discharged to within catch basin of the window frame along the designed drainage route. At the same time, the detailed design of dripping eaves mainly prevents people from flowing along the profile wall to the inner cavity due to the surface tension of water.
3. The window frame is not sealed with the lap part of Casement, open the seam, open the outside atmosphere, and keep the internal and external pressure balance of the drainage hole with poor water accumulation, so as to ensure that rainwater can be discharged to the outside along the drainage hole under its own gravity. If there is a high requirement for the heat insulation and sound insulation performance of doors and windows, adhesive tape can also be added to seal, but an open seam should be left on the upper part of the window to maintain the air pressure balance. As for the problem of air pressure balance of the lower chamber of glass, the air pressure balance hole can be opened on the Casement vertical profile or the upper horizontal profile to keep the air pressure balance with the outside world. So as to ensure that rainwater can be smoothly discharged to within catch basin along the designed drainage route.
In reality, the waterproofing of many plastic-steel doors and windows is usually just glue, and a layer of sealant is applied to the glass sealant. The author thinks that although this method is good, it is not scientific. Under the long exposure of ultraviolet rays from the sun, the glue will age and fail, and there is still the possibility of water seepage. The scientific method is to apply the principle of pressure balance, reasonably design the section structure of heat-breaking aluminum profile, design a complete drainage process system, and always maintain the balance of internal and external pressure, it can completely solve the possibility of rainwater accumulation from structural technology, thus avoiding rainwater leakage and greatly improving the waterproof performance of aluminum alloy doors and windows with heat insulation broken bridge.
Of course, the processing, assembly and construction precision are also very important. The structural design of the waterproof system is also to solve the water seepage technically. Even if the design is good, it will not help if the processing and installation precision cannot keep up with it. Only when the design, processing and construction are well done can water seepage of doors and windows be completely avoided.
The above are some of the reasons and solutions for window leakage summarized by the editor, hoping to help you.
