In addition to the same glass, the aluminum window and the UPVC window are different from the frame profile material. The aluminum window frame is made of extruded aluminum profiles. The UPVC window frame is made of a type of extruded profiles with polyvinyl chloride resin as the main raw material, and a certain proportion of stabilizers, colorants, fillers, ultraviolet absorbers, etc to be the main material. Thus, different frame materials have their characteristics in terms of physical properties.
Wind Pressure Resistance
For the same windward area, the wind pressure resistance of aluminum windows is significantly higher than that of UPVC windows, which is determined by the composition of the materials. The experimental data prove that the frame strength of the aluminum window is about two levels higher than the frame strength of the UPVC window.
Watertightness and Airtightness
Both water tightness and air tightness reflect the tightness of the windows. The frames and fans are welded for UPVC windows, so the airtightness and water tightness should be better than the aluminum windows which the frames and fans are connected by screws. However, the aluminum window profiles have high dimensional accuracy, and the frame and the fan are closely matched, so basically both are at a level of tightness.
Thermal Insulation Properties
Aluminum alloy metal has a high conductivity to temperature. The experiment proves that under the same conditions, the thermal conductivity of the aluminum alloy material is 1250 times that of the UPVC material. Therefore, the doors and windows made of only aluminum alloy material are not as good as the UPVC doors and windows. For powder consumption in ordinary houses while the air conditioners are turned on, and the rooms with UPVC doors and windows are more than 5 degrees per day than those with aluminum alloy doors and windows. This also shows that the thermal insulation performance of UPVC doors and windows is better than aluminum alloy doors and windows. In recent years, the thermal break aluminum alloy windows have made aluminum alloy windows have higher insulation performance than UPVC windows, but its price is also very high.
The lighting performance mainly depends on the proportion of the glass area of the same door and window to the entire door and window area. The larger the proportion, the better the lighting. The strength of UPVC is lower than that of aluminum alloy, so the same area of doors and windows, UPVC materials are more than aluminum alloy, The shading area of UPVC doors and windows frame is about 10% larger than aluminum alloy doors and windows, it also creates a poor visual field and decorative effect, and the lighting performance is worse than that of aluminum alloy doors and windows.
Sound Insulation Performance
The sound insulation performance of doors and windows is mainly due to the sound insulation effect of the glass which accounts for about 80% of the entire door and window area. Double glass is better than single glass, a hollow is better than a double layer, and has nothing to do with the frame of door and window. Even if it is related, it is only related to the gap between the frame and the glass. Nowadays, both aluminum window manufacturers and UPVC window manufacturers are doing a good job in the tightness of doors and windows, and the sealing performance of both is good. Therefore, the sound insulation performance of doors and windows mainly depends on the performance of the glass. The sound insulation performance of the two frame materials is the same.
The metal aluminum alloy is a kind of non-combustion body, and the UPVC material has certain plastic composition due to its material composition, which makes it have the characteristics of flame retardant. When it encounters an open flame, it will burn slowly, and when the fire stops, it will stop burning, and the hydrogen chloride released during combustion will be released, which can cause heavy casualties to personnel. Therefore, from the perspective of fire protection, the performance of aluminum alloy doors and windows is higher than that of UPVC doors and windows.
The frame material of UPVC doors and windows is a composite material with polyvinyl chloride resin as the main raw material, and there are many internal chemical components, so it may appear aging and cracking with time. Experimental research believes that the service life of UPVC materials is generally around 30 years. The life of aluminum alloy can generally reach more than 50 years.
Currently, in the construction industry, the use of aluminum alloy doors and windows and UPVC doors and windows are all very common. Each has its advantages and disadvantages. Aluminum alloy doors and windows are light in weight and high in strength, high in corrosion resistance, small in deformation, strong in fire resistance, long in service life, environmentally friendly and energy-saving and recyclable. They are the mainstream of the high-end door and window market, which mainly used in important buildings, such as high-end residences. Hotels and villas. UPVC doors and windows are still the mainstream of the low-end and middle-end market at a low price, but the UPVC material has its obvious shortcomings. There is a gap between the plastic and the steel plate, the air and rain which can enter and gradually corrode the steel plate cannot guarantee the strength and rigidity. Therefore, the window frames of many UPVC doors and windows are not straight, often different to pull and to open. Currently mainly used in ordinary buildings, such as ordinary residential and office buildings.
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