What are the precautions for replacing aluminum alloy doors and windows?

1. During decoration, since the window removal process will damage the indoor and outdoor walls, replace the doors and windows first, and then proceed to the next step of decoration. The owner should clearly choose which brand of profiles to choose? The quality of the profiles will determine the grade of the entire door and window, sealing and aging, etc. Buyers should not be deceived by the vague concept of "cheap plastic steel doors and windows" in the market.

2. When purchasing, you must go to a regular building materials market. The roadside stalls have simple processing equipment, and the accuracy and strength cannot be guaranteed at all. Especially for plastic steel doors and windows, the lining steel of the plastic steel doors and windows they make is of poor quality, or even without lining steel, and other accessories are also very poor.

3. The appearance color of plastic steel doors and windows should be bluish white. If the color is too white or gray, it means that the stable components in the material are insufficient, and it is easy to age and turn yellow over time.

4. Check whether the hardware is flexible and smooth.

5. There should be an aluminum slide rail at the bottom of the sliding window frame to facilitate its replacement.

6. The sealing strip of the casement window should be freely replaceable, because the life of the sealing strip is shorter than that of the window. 

7. There should be a fixed piece in the middle of the sealing strip of the sliding window sash, which is the key to the sealing of the sliding window. 

8. During the installation process, the horizontal and vertical correction of the doors and windows should be supervised. The space between the window frame and the wall should be filled with foam glue, and the inside and outside of the window frame must be sealed with silicon copper glue or sealant to prevent water seepage. After installation, the protective film must be removed, otherwise it will reduce the service life of the doors and windows.