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1. Heat preservation and energy saving: UPVC Profile multi-cavity structure has good heat insulation performance and low heat transfer coefficient, which is only 1/357 of steel and 1/1250 of aluminum. Its economic and social benefits are huge. .
2. Air tightness: All the gaps in the installation of plastic steel doors and windows are equipped with rubber and plastic sealing strips and wool strips, so the air tightness is much higher than that of aluminum alloy doors and windows. The air tightness of plastic steel casement doors and windows is higher than that of sliding windows. Under normal circumstances, the air tightness of casement windows can reach level five, and that of sliding windows can reach level two.
3. Water tightness: Because UPVC Profile has a unique multi-cavity structure, there is an independent drainage cavity, no matter the frame or fan, the accumulated water can be effectively discharged. The water tightness of plastic steel casement windows is much higher than that of sliding windows. Under normal circumstances, the water tightness of casement windows can reach level five, and that of sliding windows can reach level three to four.
4. Wind pressure resistance: In the independent plastic cavity, 1.5~3MM thick steel lining can be filled, and plastic steel can be selected according to the local wind pressure value, the height of the building, the size of the opening, and the design of the window. Thickness and profile series to ensure the building's requirements for shaped doors and windows. High-rise buildings can choose large-section sliding windows or internal casement windows, and the wind pressure resistance can reach six levels or more. Low-rise buildings can choose external casement windows or small cross-section sliding windows, and the wind pressure resistance is generally level three.
5. Corrosion resistance: UPVC Profile has a unique formula and good corrosion resistance. For example, anti-corrosion hardware and stainless steel profiles are used, and its service life is about 10 times that of steel windows.
6. Weather resistance: UPVC Profile adopts a unique formula to improve its cold resistance. Plastic-steel doors and windows can be used in environments with large temperature differences (-50°C~70°C) for a long time, and will not be deteriorated, aging, embrittlement, etc., even if exposed to the sun and humidity. The earliest plastic-steel doors and windows have been used for 30 years. The material is intact as before. According to this calculation, the service life of plastic steel doors and windows under normal conditions can reach more than 50 years.
