2
In the second case, the product is improperly installed. The measures we take are as follows: First of all, it depends on whether it is the problem left by the improper installation of workers or the product itself. If there is a problem with the product, you should find a dealer or manufacturer. If workers have some minor problems during installation, they can disassemble and reinstall them.
three
In the third case, the plastic steel window is used for a long time, which is easy to ventilate, and the gap at the interface is too large to be bonded. The best way is to stick a sponge around the window first, and then cover the whole window with plastic, so that it absorbs heat and is airtight, and the heat preservation effect is good.
four
In the fourth case, if it is the air leakage gap left by installation, the measures should be taken. It is best to clean the gap between the window frame and the door cover and the wall first, then fill it with styrofoam, then fill it with cement and sand, and finally repair it!