Now whether it is a rough house or a well-decorated house, doors and windows are reserved after the house is handed over. Some owners may be more worried about the quality of these doors and windows? Is it necessary to replace it? Then, let’s get to know Qi Jiayun through a detailed analysis and introduction!

1. Anti-theft door

If the anti-theft door is reserved, the anti-theft door has several anti-theft levels. There are four levels of A, B, C, D and D, which can be checked by the steel stamp on the side of the anti-theft door. Among them, the anti-theft effect is the best. More than 30 minutes (15 minutes for class B, 10 minutes for class C, and 6 minutes for class D).

　　The quality of the anti-theft door reserved by the general developer is still acceptable. For ordinary families, there is generally no problem. The reserved door body can be replaced without replacement.

2. Door lock core

　　 The two main components of the anti-theft door are the door body and the lock cylinder. The security level of the lock cylinder is divided into A level, B level, and super B level (also called C level). Of course, C level is better.

No matter what level of lock cylinder the developer gives you, because the entire community is generally purchased from the same manufacturer's lock cylinder, in order to avoid some keys that can open two doors, it is recommended that you do not change the door, but also At least the lock cylinder was changed..

Three, windows

　　
If the window reserved by the developer is an aluminum alloy window, we need to check the thickness of the aluminum alloy window profile, and check whether the glue between the glass and the window frame is tight enough, check whether the window is opened smoothly, and see whether the welding With strict and no missing welding, we use the above details to determine whether the reserved windows need to be replaced.

　　If the quality of the windows is good, you don’t need to replace them, but if you live next to the road or have higher requirements for doors and windows, then you need to replace them according to your plan.

Four, suggestions

　　 The door body can not be replaced, but the lock core must be replaced;

　　 If there is no quality problem, the windows in the house do not need to be replaced. If the requirements for sound insulation and heat insulation are high, it is recommended to replace windows made of broken aluminum and other materials.