Leakage of doors and windows, typhoon days will cause heavy rain outside, light rain at home, or continuous water inflow on the surface of the inner wall, which will eventually lead to foaming and mildew on the wall skin, which will always affect the normal life after occupancy.
Brother Peng, the focus of this article is to teach you the hidden dangers of water leakage in doors and windows, and how to do well the waterproof work of doors and windows at home in advance.
0 1 where is the hidden danger of leakage of doors and windows?
The reason for water leakage in doors and windows at home may be that the air tightness and water tightness of doors and windows products themselves exceed the maximum limit, or there may be problems in the processing end of doors and windows, or the waterproof measures are not in place when installing doors and windows.
The air tightness and water tightness of the door and window products themselves exceed the maximum tolerance.
Different door and window product structures have different air tightness and water tightness grades.
△ Watertightness classification of doors and windows
△ Air tightness classification of doors and windows
△ A brand inspection report
For example, the general sliding window is not as airtight and watertight as the external window, and the sealing performance of the system window is better than that of the non-system window.
△ Generally speaking, the structure of sliding window has obvious air leakage and rain leakage.
When the outdoor wind and rain exceed the upper limit of the sealing performance of doors and windows, rainwater can easily flood into the room:
Reasons for the end of door and window processing
Some doors and windows are waterproof in structure and installation, but they leak when it rains, probably because the doors and windows "cut corners" at the processing end:
There are no drainage holes in doors and windows, or the drainage holes are too high, so the rainwater flowing into the cracks in doors and windows cannot be discharged normally, thus flowing into the room:
△ Image from the Internet
The frames, supporting fans, partitions and frames of doors and windows are not coated with waterproof end glue, which allows rainwater to flow into the room from these gaps, leading to water leakage.
△ legend of end glue
Other processing problems, such as excessive gap of outdoor glass pressing line and lax error between sash and frame, lead to leakage.
Waterproof measures are not in place when installing doors and windows.
When installing doors and windows, the joints will be blocked with sealant to play a waterproof role. If the sealant is applied less or missed, or the quality is too poor, the colloid will age and crack in a short time and leak easily:
Arranged around the door and window frame, waterproof is not in place, such as the window sill is wide but there is no slope and waterproof, there is no height difference between the outdoor door and the balcony, and rainwater is easy to accumulate and leak; There is a gap between the dry hanging stone and aluminum plate on the windowsill table, and the rain directly penetrates into the room;
And the leakage problem that there are leakage cracks in the outer wall near the doors and windows and there is no waterproof treatment.
02 solution
1, the air tightness and water tightness of the door and window products themselves exceed the maximum tolerance.
It is not recommended to buy sliding windows with too many gaps and poor sealing. Unless the balcony is washed, the drainage of doors and windows will not be timely in typhoon or rainy days, and it is easy to "rain outside and light rain at home" as in the first picture in the article.
How to select a sealed sliding window, refer to the following figure:
△ The high-low rail drainage of sliding window is better than the drainage hole drainage.
Ask the merchant, "Do you have a product performance test report? How is the sealing performance? If there is a report, the performance level is high, which is much better than other cows boasted by the merchants.
2. In view of the end of door and window processing.
When buying doors and windows, ask the merchant, "Is this door and window splicing corner waterproof?" If the merchant can say that it must be coated with end-face adhesive, or directly show you the photo certificate of the manufacturer, you can buy it with confidence.
Search the word-of-mouth of manufacturers' information through the Internet, ask merchants about "factory equipment value, factory reward and punishment system, workers' experience, and ask factories to take photos and videos", and go to local door and window factories for field visits and other channels to understand the processing capacity of door and window enterprises.
△ The equipment and quality control of the factory determine the processing quality of doors and windows.
△ The equipment and quality control of the factory determine the processing quality of doors and windows.
△ The equipment and quality control of the factory determine the processing quality of doors and windows.
Discuss with the merchant in advance "Who is responsible for the leakage caused by product quality problems?" "And write it into the contract.
3. Waterproof measures for installation of doors and windows
When buying, ask your family, "What brand of exterior wall glue is used for door and window installation? If it is brand glue such as Silibao, Zhijiang, Baiyun, Antai, Zhongyuan, Daokangning (acquired, renamed Taoxi), Ge and Wacker, you can buy it with confidence. Merchants do not provide it, you can buy it yourself.
After the doors and windows are installed, check whether the installation workers have any random adhesion or less adhesion, and require timely rectification once found.
△ Case of beating sealant indiscriminately
The developer is responsible for the waterproof work of the external wall of the new community, so if there is leakage in the external wall before moving in, you should find the developer for maintenance in time.
Problems such as "waterproof, or the warranty period has expired, and there is a gap in the dry-hung stone aluminum plate on the windowsill" will appear in the external walls of new and old residential areas. You should do a good job of inspection yourself and timely fill the leak and waterproof:
△ Exterior wall waterproof coating
The lower the windowsill, the easier it is to accumulate water, which is the most important thing for waterproof doors and windows. Brother Peng provides the following waterproof schemes:
(1) The windowsill adopts drainage slope+waterproof coating+ceramic tile. When doors and windows are installed on a wide windowsill, the order of window installation can be as follows: cleaning the base surface → brushing waterproof paint → window installation → drainage slope with the masonry angle of the outer windowsill of about 10 degree → tiling → caulking glue.
(2) The construction technology is the same as above, except that the waterproof coating is replaced by flexible waterproof coiled material or waterproof poncho. The price is more expensive and the durability is better.
(3) Use aluminum alloy windowsill instead of ceramic tile. Comparatively speaking, the windowsill board is more compatible with doors and windows, with high value; Water will not flow directly from the window sill to the wall, so it is not easy to leave water marks to be taken care of.
Written at the end: For most newly renovated Pengyou, it is difficult to understand the importance of waterproof doors and windows. Merchants don't pay attention to teaching waterproof courses for doors and windows online, which also increases the difficulty for consumers to understand waterproof knowledge.
Peng Ge will continue to pay attention and try to collect more experience, and plans to continue publishing articles to help more friends in need.
You are also welcome to leave a message below and tell us your experience in preventing leakage.
The above content is shared by Peng Ge Door and Window Science, I hope I can help you ~