Entry door
The first choice is to determine whether the door installed by the developer is a security door. If the developer does not install a security door, it is better to replace it.
If it is determined that the developer installed the security door, it is necessary to determine the level of the security door, with a steel seal logo on the side. Generally, security doors are divided into four levels: a, B, c and d. Grade A is the highest, and the anti-damage opening time is 30 minutes. If developers install Level A and Level B, they can not replace it.
Door lock
For anti-theft doors, in addition to the quality of door body, the safety factor of the lock is also one of the factors that determine its anti-theft index. The lock cylinder is divided into A, B and C3 levels in terms of security level, among which C level has the highest anti-theft performance and A level has the lowest. Nowadays, most locks on the market are grade A. When choosing, you need to pay more attention. Try to choose grade B or grade C. The security will be higher and you will be more assured to live.
Many new residential area building have seen that neighbor's keys can be opened to each other. In fact, it is because developers use the same brand when installing, because there is a problem of "mutual opening rate"-the probability that different locks can also be opened to each other, the C- level lock cylinder can be replaced when determining the quality of the door panel installed by the developer.
Security window
Although doors and windows are only a small part of the new house, their functions cannot be ignored. Failure to install them will affect the effects of sound insulation, rainproof, windproof and heat preservation.
If the developer installs aluminum alloy doors and windows, you can see these aspects:
1. The thickness of the profile;
2. Whether the installation of the window frame is firm and correct, and whether there are scratches, bumps, and deformation problems;
3. Whether the window can be switched freely and pushed freely;
4. Whether the sealing strip between Casement and window frame, Casement and glass is in place and tight.
What should I pay attention to when decorating doors and windows?
1. During decoration, the planing and repairing master left the gap too large, or did not form a vertical position with the ground during installation. It is necessary to remove the doors and windows, and the planing and repairing will be consistent, just install it vertically.
2. Incorrect hinge of vertical hinged door will also lead to irregular frames and doors and windows. It is OK to reinforce the screws of the fixed door and adjust the inclination of the doors and windows and frame sleeves neatly. Do not screw too tightly, it is not convenient to adjust. Screw tightening to keep straight, you should nail half first and then tighten it.
3. The door leaf switch is not smooth. Generally, except that the Bolt of the door is not installed correctly and the size of the formation lock is not suitable, another biggest reason is that the Bolt does not match the plate, mark before installation.
4. Sliding door the effort is generally that the upper and lower track slots are not vertical. You can remove the track first and use a vertical ruler to correct the upper and lower track and rail slot centers.
[This article is reprinted from the public number of door and window city. Only information is transmitted. Please contact us to delete the infringement]]
Edit: doors and windows online-Yanzi
