The solution is as follows:
Check sealing strip
Whether the sealing strip is aging or shrinking, if so, replace it with a new sealing strip in time. The main reason for this situation of sealing strip is that after a long period of wind and sun exposure, the service life of sealing strip is too short to mention than that in the case of no surprise. If there is a strict inconsistency when the doors and windows are sealed, it is recommended to replace them as soon as possible.
Check silicon sealant
Silicon sealant is there any phenomenon such as falling, aging, cracking, etc. This kind of situation is not common. Most of the reasons are that the aluminum alloy door and window assembly manufacturers did not make silicon sealant of good quality or forgot to make silicon sealant during the construction process, resulting in air leakage between the profile window frame and the glass, there is also air leakage between the window frame and the wall. If there are any of these situations, we must find the manufacturer in time to make up for the leak. Consumers with strong hands-on ability can also purchase silicon sealant in building materials shops by themselves, and they can handle it quickly by themselves.
View closed status
The most important phenomenon of air leakage is also the most common, that is, the aluminum alloy doors and windows are not tightly closed. First, the lock points slide down, causing the doors and windows to be tightly closed. Second, the windows fall down, making it impossible to close the windows, this is the most broad, and the solution is also very sporadic. Just find the door and window brand store to debug the hardware.
Method Case 2:
It rains heavily in summer, and many families have the problem of leaking aluminum alloy windows. Window leakage not only affects indoor beauty, but also affects our daily life to some extent. If we find window leakage, we need to repair it in time.
1. If the aluminum alloy window leaks, you need to find the cause of the window leakage first and repair it according to the cause. For example, leakage caused by irregular window installation. When the construction personnel replace the window, it will cause sill plate or surrounding wall cracking accidentally. You can clean up the cracked decorative layer first, and then fill the gap with sealant or waterproof plugging treasure. Next, use cement mortar for leveling; After the base layer is dried, then apply waterproof paint.
2. After the aluminum alloy window has been used for a long time, its sealant will aging, causing rainwater to invade the room; Or the original quality of the window is not closed, and the original sealing effect is not good. You can remove the aging sealant, then clean the base layer, and finally re-apply the sealant; The window seal is not good, we can paste the sealing strip in Casement and other positions.
3. The water leakage of aluminum alloy windows may also be due to the blockage of the drip tank or drain hole of the windows. If the drip tank is blocked, we can paste aluminum alloy and other materials on the outside of the window as the drip line; If the window drain hole is blocked by dust and so on, you can use a wooden stick to stab it open; if the window itself does not have drainage holes, you can use the electric drill to re-open two drainage holes.
Method Case 3:
I. Analysis of main causes of water seepage of aluminum alloy doors and windows
1. Aluminum alloy doors and windows are caused by structural defects in the design process. The structural strength and steel degree of the main body of doors and windows fail to meet the index requirements of local wind-resistant press energy. For example, small section and thin wall thickness cause the stress bars, hardware accessories, seals and bonding materials produce severe plastic deformation, crack or damage under normal wind load, resulting in rainwater leakage due to the failure of door and window body seal. The reason is that the product fails to accurately calculate and design the strength according to the specifications, and does not pass the physical function test of wind pressure resistance before factory installation, resulting in leakage of doors and windows.
2. The waterproof structure design of aluminum alloy doors and windows is unreasonable, the waterproof and sealing layer of profile section is not enough, and there are no multiple drainage channels. When rainwater easily enters the chamber of aluminum alloy doors and windows and enters the chamber under the effect of indoor and outdoor wind pressure difference, and enters the chamber of aluminum alloy doors and windows, however, it cannot be smoothly discharged outside through the drainage system of aluminum alloy doors and windows and left in the doors and windows to cause water accumulation and leakage.
3. Failure to meet quality requirements during processing and installation. When the aluminum alloy doors and windows are installed on site, the Assembly size control is not good, resulting in the dislocation of the overlapping sealing positions with each other or the insufficient overlapping size; The corner joints of the frame fan are not sealed and not glued; or there is a gap due to sufficient pressure. The fastening screws used to fix the door and window frame is not blocked by glue, and the surface of the sealing part is not cleaned when sealing with sealant.
4. Materials and accessories are caused by material differences. The quality of sealant, adhesive strip and hardware accessories used for aluminum alloy doors and windows is Auxiliary materials unqualified. If the sealant is not popular or fake glue, the resistance to displacement is poor and it is easy to crack; The adhesive strip is excellent, the anti-aging time is short, and the shrinkage is easy to break; The quality of hardware accessories is too poor, it can't stand the failure or deformation when it is opened for many times, causing the closure to be lax, resulting in water seepage.
5. The connection position between the aluminum alloy outer door and window frame and the wall of the opening is fill plug seal improper, and the gap between the aluminum alloy outer door and window frame and the wall of the opening is too large or too small, which makes the doors and windows difficult to be fixed and the filling is not real, and cracks are easy to occur, this is often caused by civil engineering units. It is also one of the reasons for water seepage.
II. Waterproof measures for the above reasons
1. Design and preparation stage. First of all, strict calculation and design should be carried out according to the engineering characteristics according to the specifications. The wall thickness and section of aluminum profiles should meet the wind load size and use requirements of local buildings. In front of the door and window frame on the wall, select the most unfavorable or large batch of integral windows to carry out three-sex testing, and conduct physical performance testing according to the facts to determine whether the doors and windows meet the design requirements and performance indicators.
2. Waterproof design of door and window structure.
(1) it is the most effective way to improve the waterproof and sealing performance of doors and windows to actively adopt isobaric principle when designing the structure of aluminum alloy doors and windows.
(2) the overlapping amount between the movable fan and the window frame cannot be too small. Casement window the overlapping amount of movable fan and window frame should not be less than 6mm.
(3) for high-rise buildings, cold areas and areas with high energy saving requirements, try to adopt flat-open doors and windows structure, and use less or no push-pull doors and windows structure. Since there is a large gap between the sliding door and window movable fan and the upper and lower sliding rails, and the two adjacent Casement are not on the same plane, there is no sealing pressing force between the two casement, only rely on wool tops to overlap, but there is a gap between wool tops, and the sealing effect is very weak, so the waterproof sealing performance of sliding doors and windows is poor. The flat open doors and windows Casement and window frames are equipped with 2 to 3 sealing rubber strips to seal. After closing the lock at Casement, the sealing strip is tightly pressed, and the middle cavity is easy to form an isobaric cavity, therefore, doors and windows with superior sealing performance can be designed.
(4) aluminum alloy glass pressure line for installing glass on doors and windows should be designed in indoor direction to avoid water seepage between the glass pressure line and window frame.
(5) push-pull type doors and windows sliding indoor side should be designed high enough water barrier, otherwise when the outdoor rain has a constant pressure, the rain will cross the water barrier into the indoor.
(6) the upper part of the door and window movable fan should be provided with water covering plate, and the lower part should be provided with drainage holes with sufficient displacement, so that the water entering the door and window can be discharged out of the room as desired.
(7) combine doors and windows to minimize exposed joints, because the micro gap cannot be sealed with sealant and leakage occurs. When the exposed joint cannot be avoided due to structural reasons, the two contact surfaces of the profile at the joint form 90 °, which is convenient for sealing with sealant.
3. In terms of blanking and assembly of doors and windows, it is necessary to improve the manufacturing precision and ensure the appropriate lap volume. It is also necessary to pay special attention to the sealing situation between the fan and the fan and the lap joint between the fan and the surrounding frame when the glass is embedded.
4. Selection of materials and accessories. Choose perfect weather-resistant silicone sealant, wall glue and sealant on the corner joint of frame fan; Choose hardware accessories from regular manufacturers.
5. The connection parts between the aluminum alloy doors and windows and the wall of the opening shall ensure that the gap size meets the requirements, which is beneficial to the sealing between the two, and fill the waterproof material fill plug seal.
Method Case 4:
In daily life, we will encounter some phenomena of water seepage in aluminium windows, especially for old houses, window leakage is a common problem, then, have you ever seen water seepage in your window? Next, I will talk to you about the causes of window seepage encountered by customers and friends and the corresponding solutions.
Reason for water seepage: aluminum window frame in the process of assembly and processing, some processors do not install waterproof a seal in order to reduce the process, and rainwater seeps into the room through the aluminum alloy splicing gap.
Casement window when the set angle is not coated with section waterproof adhesive, the set angle is not tight and water seepage occurs.
Solution: since aluminium windows has been installed and the subsequent decoration has been completed, we find out the location of water seepage and dry it, and apply a layer of disposable silverware set evenly at the water seepage place (rarely seen at aluminum alloy joints).
Cause of water seepage: After aluminum window frame installation, the surrounding of the window frame and the wall are not properly handled. The red brick of the new house is material, and there is a certain gap between the window frame and the red brick wall (there is no special requirement. Generally, the left and right spaces are about 2.5 ~ 3cm). This gap needs to be filled with cement mortar, some solid plasterer gaps are filled incorrectly and water seepage occurs.
The gap between the installed aluminum window frame and the wall is often 0.2~0.3mm in the left and right space. This gap needs to be filled with foam glue, and then a layer of curtain wall glue is applied around the window frame and the wall. Some masters fill less, some even do not fill, and then directly glue the curtain wall, resulting in water leakage of the window frame.
Solution: The phenomenon of water seepage due to the false filling of the gap, first of all, we find the location where water seepage occurs, usually at the junction of the window frame and the wall. Secondly, we clean up the dust and dirty things in the window frame and the joint, and then evenly put a layer of curtain wall glue on the joint.
Due to the phenomenon of water seepage after installation, first of all, we find the location where water seepage occurs, which is not uncommon in the junction between the window frame and the wall. Secondly, we use art knife to clean up the curtain wall glue and dust and stolen goods at the junction. Then, we use a screwdriver to clean up the foam glue directly below the window frame and the wall. Again, we refill the foam glue, use art knife to clean up the foam glue filled by the gap. Finally, put a layer of curtain wall glue on the joint between the window frame and the wall.
Reason for water seepage: water seepage occurs in the lower wall outside the window frame.
Solution: break the paint layer at the water seepage of the wall, carry out waterproof treatment, and then brush the paint layer again.
Reason for water seepage: there is no drainage hole on the window or the drainage hole is blocked, and the rainwater enters the room from the track.
Solution: 1. Add drainage holes without drainage holes. 2. Clean up the drainage hole if the drainage hole is blocked. 3. Check whether the track water baffle is too short and need to be raised.
Method Case 5:
I. Common leakage parts of Windows
Most of the leakage parts of Windows are concentrated around the window. The parts where leakage occurs easily are crucial: water accumulation in the sliding groove of the window itself, the junction between the lower edge of the window and the window sill, the junction between the two sides or the top of the window and the wall, and the seepage of the wall around the window.
Ii. Common causes of window leakage
There are many reasons for window leakage, which need to be analyzed according to the specific situation. Therefore, we should polish our eyes, find out the cause of window leakage, and then prescribe the right medicine. Window leakage, except for obvious window quality problems, is also caused by some aging seals, wall damage and improper installation and maintenance. Specifically, the common causes of window leakage are:
1. The window itself is not designed with drainage holes, and slot broaching of the water guide is not smooth;
2. The treatment of window sealant strip is not standard;
3. The gap between the window and the window sill is not tightly sealed;
4. The window frame is not filled tightly and loose; The original filling material in the gap between the window frame and the structure is aging and loose, and the filling is not dense;
5. The sealant around the window is of insufficient quality or cracks and falls off after long-term use;
6. Due to the alternation of hot and cold, weathering of rain and snow, the settlement and deformation of the building structure, and the physical gap at the junction of the window and the external wall;
7. Water in the insulation layer of the junction between the top of the window and the outer wall;
8. The structural wall around the window has physical defects;
......
Iii. Selection of waterproof materials for window leakage maintenance
Window leakage occurs, usually choose the following kinds of waterproof materials for maintenance. However, remember that the quality must pass when purchasing these materials. If there are quality certification documents to ensure that the quality of the materials meets the requirements, do not choose inferior sealing materials.
1. Foam filling material: block the physical gap between the window frame and the structure;
2. Primer waterproof material: it can improve the bonding strength between the structural base and the subsequent sealing waterproof material;
3. Special sealing tape: enhance the window perimeter and enhance the blocking effect twice;
4. Exposed waterproof material: it has the performance of effectively resisting aging and ultraviolet rays when exposed for a long time.
IV. Window waterproof Maintenance Technology
Most window leaks can be solved by waterproofing and sealing. Generally, it depends on the situation whether the leakage peripheral cutting and slotting treatment is carried out. There are two broad processing methods:
One is to block indoors. Rarely, it is to remove the sealant and some embedded materials of the window frame circle, and then seal them after refilling. The other is to handle them outdoors, it is necessary to work at an altitude of particaular wording posts. For those with external wall insulation, first grooving to the structure and then removing the sealing and waterproof. For those without external wall insulation, directly removing the sealing and then sealing and waterproof.
V. Window waterproof maintenance solution
In any case, leaking windows is not a trivial matter, and professional teams should be selected for maintenance.
