Plastic Steel Windows/ UPVC Windows

The advantages of plastic steel windows are good sound insulation, heat insulation, fire resistance, air tightness, water tightness, corrosion resistance, insulation and so on. The disadvantage is ,after all, it is PVC plastic profile,after a long time, the surface shall turn yellow and the shape of the window shall be deformed. The service life will be 20-30 years. plastic steel doors and windows without steel liner are only considered as plastic doors and windows.,the real plastic steel windows are with the steel lining added. The anti wind pressure performance of the plastic steel doors and windows mainly depends on the specifications of the reinforcement of the steel lining in the cavity.The larger the section size of the lining steel, the greater the thickness, then the greater the moment of inertia, and the better the anti wind pressure performance.The steel lining cavity is larger and can be loaded with larger steel lining. Under the same thickness of steel lining, the moment of inertia is relatively larger, so it has relatively better wind resistance performance, which makes it suitable for use in high-rise buildings, and is not easy in damage and deformation.