TECH ARTICLE NO. 15|Common leakage problem of casement Windows

16-10-2022

TECH ARTICLE NO. 15|Common leakage problem of casement Windows


If the windows are not installed properly or chose some bad window hardware accessories, it is easy to cause water seepage and air seepage. So what are the common causes of water seepage in windows and what are their solutions? This article from SiHai Hardware will answer your questions.

 

First of all, let's sort out the phenomenon that the window may leak, its causes and solutions.

 

1. There may be water seepage at the window frame and the surrounding wall links. This may be due to air bubbles in the sealant between the window frame and the wall, or the sealant is not tight enough to cause cracking. For some windows that are glued in places where the temperature is low in winter, the sealant loses its adhesion, resulting in poor sealing. Therefore, it is very important to choose a high-quality sealant.

 

Solution: When purchasing sealant, it is necessary to ensure that the sealant is used within the validity period, and it is recommended to use a sealant with good resistance to joint displacement and cracking. In addition, it is also necessary to pay attention to whether a large number of air bubbles are formed during the sizing process, it may causes cracking.

 

2. The non-fit between the window profiles and the glass is also one of the reasons for water leakage. If the PVC sealing strip is used on the window, it will shrink, age or even break over time. In addition, if the sealing strip is not installed properly, unevenness or bulging, it will also cause water seepage in the window.

 

Solution: When choosing a sealing strip, you can choose EPDM or TPE material instead of PVC. Both anti-aging properties, anti-corrosion properties are greater and service life are long.

 

3. Water leakage sometimes occurs at the four corner joints of the window profiles, such as the four corners of the window. When the profile is connected to the profile, if the hardware is not fitted, which will cause a gap between the profiles, thus causing water seepage at the joint of the window profile. A piece of high-quality, right-sized corner brace and four hole pendant is the most straightforward solution to this problem.

 

Solution: When choosing stainless steel corners brace, you can choose ones with longer thickness and length. Now Sihai Hardware Factory uses 42mm long and 1.0mm thick stainless steel corner brace. The longer and thicker material makes the profiles connet firmer and more compact. In addition, the glue injection corner bracket is also one of the high-quality products for waterproof infiltration. Products with waterproof glue injection technology can effectively prevent rainwater from infiltrating into the window.

 stainless steel friction hinges



4. Sometimes the deformation of the hardware will also cause the window to be not closed tightly and lead to water seepage, such as the transmission,stainless steel friction hinges and other hardware accessories. On the casement window, the transmission hardware is one of the hardware that is mainly relied on when the doors and windows are sealed. If the quality of the transmission hardware is not good, it is easy to seep from the edge of the window sash. And the stainless steel hinge is also the main hardware that affects the sealing. The total height and opening and closing effect of a window friction hinge will directly affect the performance of the window. Too high overall height can lead to large gaps in the window profiles, and friction hinges that do not open and close smoothly can also cause the window not to close tightly.

 

Solution: When buying window accessories, choose a high-quality, smooth transmission hardware. And you can find professionals to debug hardware regularly. When choosing a stainless steel window friction hinge, you need to pay attention to choose one that opens smoothly and does not get stuck. Conventional hinge height is 17.5mm. If you need a higher or lower total height, you need to communicate directly with the manufacturer.

stainless steel corner brace 


In general, the accessories used on the windows, such as weatherstrips, sealants, stainless steel window friction hinges, and stainless steel corner bracket are all very important. High-quality hardware accessories can effectively prevent water seepage. If you need products, you can also contact SiHai Hardware for more product information at any time.


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