How to choose good aluminum alloy doors and windows, for the layman, it is not easy! The variety of brands and materials is dazzling. If you don't choose the right one, the pollution and noise problems you face every day will be very annoying. Xiaobian tells you, choose a good door and window, look at profile, accessories, production, installation, service and price.
1、 Look at the profile:
The quality of profile directly determines the quality of doors and windows. Doors and windows produced with inferior profiles have low strength, easy to change color and deformation. The requirements for profiles are generally as follows:
1. Appearance: natural color, smooth and even surface.
2. Cavity and cavity are more independent, which can prevent corrosion.
3. It has certain strength and elasticity.
4. In order to prevent lead poisoning, green profiles without lead should be selected.
2、 See accessories:
The selection of hardware, wool top and other accessories is the key to the production of high-quality aluminum alloy doors and windows. When doors and windows are equipped with insulating glass, the weight per square meter may exceed 40 kg, so the requirements for various accessories are very high.
The quality of accessories from different manufacturers varies greatly, and the price also varies several times. Poor quality accessories will be damaged after a short time of use, resulting in the window sash sagging, push-pull can not be moved, the switch is not tight, sealing is not good, and even leave security risks.
3、 Look at the production:
Production equipment and technology determine whether the overall performance of doors and windows is good. According to the requirements, the diagonal difference of doors and windows should be controlled within 0.5-1.5 mm, with strict process parameters and control range, which requires certain production equipment and technology as guarantee and excellent staff. Therefore, the quality of doors and windows produced by street workshops and regular manufacturers is very different.
4、 Look at the installation:
Three points of production, seven points of installation, if you do not pay attention to the installation standards, it may cause deformation of doors and windows in the future. The installation master should master the thermal expansion coefficient of doors and windows of various materials. When installing, expansion joints must be left between the window frame and the wall, so as to prevent deformation of doors and windows caused by thermal expansion and cold contraction or slight settlement of the house. At the same time, in order to ensure the waterproof, thermal insulation and sound insulation performance, the expansion joint should be filled with elastic material, and then sealed with sealant. The price of these materials is high, and the quality difference is very big. When installing, we should strictly prevent shoddy workmanship and shoddy materials.
5、 Look at the service:
The service life of aluminum alloy doors and windows is as long as 30 years. It is inevitable that glass damage and hardware damage occur in the process of use. Therefore, manufacturers are required to provide long-term and perfect after-sales service. Choosing regular manufacturers is more reliable than mobile workshops.
6、 Look at the price:
Price to compare three, but must be in the same material and performance on the basis of the price, if the greedy cheap, always lose the user.