Plastic doors and Windows in energy-saving building advantages
In the heat transfer, plastic doors and Windows material belongs to a poor conductor of heat, the coefficient of thermal conductivity is only 1/360 of the steel, aluminum, 1/250 of the good thermal insulating properties. At the same time, plastic doors and Windows are with different profile for chamber structure (some areas have been developed to five chamber and even six chamber structure), it consists of multiple independent space composition of the thermal insulation layer of air airtight, make full use of air heat insulation performance, and to make the whole materials to further reduce heat conductivity.
The experiment proved that plastic door window glass of single heat transfer coefficient K value can reach 5 below, can meet in hot summer and warm winter area most energy-efficient building requirements. Plastic doors and Windows of the double glass Windows heat transfer coefficient K value up to 3 the following, and can meet the hot summer and cold winter zone, hot summer and warm winter area and cold region, most of the energy conservation construction requirements. And ordinary aluminium alloy window, even low-e hollow glass, its K value also can reach 3.5 ~ 3.0. Therefore, in order to meet the same K value requirements, plastic doors and Windows can choose more economic supporting glass, which can reduce the doors and Windows of the project cost.
The air performance, plastic door window frame materials or door between material is through the melting of welding, window frame, casement all is a whole, namely material does not exist between gap, to eliminate the air through the horizontal and vertical material feeding joining together the possibility of the corner.
Plastic doors and Windows processing size and high machining accuracy, box fan lap the design is exquisite, at assembly, all the gaps are assembling a fluid sealant or seal tops. Glass to enchase in layering and casement into slots in the combination, and both sides are made of elastic rubber seal. Push-pull type in push-pull window frame rail buckle, fan and casing through the tops seal. Push and pull the door between, also through the two way over the tops of seal. Make the same score a window casement window frame and between is through the glue sealing, casement and window frame, casement and box Ting in indoor and outdoor both sides are strip seals.
In addition, plastic doors and Windows installation, in the wall and window frame required between using the flexible support, with foam rubber to seal. At the same time, in the window frame, the part for are air pressure balance holes and osculum, further improve the tightness performance into Windows.
The experiment proved that as long as strictly according to specification is made and installation, plastic door of push-pull window airtight performance can reach 1.5, make the same score a window air-tightness can reach 0.6. Even if the performance is the general of push-pull window, the tightness performance can also meet the hot summer and warm winter area residential building energy saving design standards "and" hot summer and cold winter of residential buildings in energy saving design standard requirements.
In the shade, sun radiate to building energy consumption to great effect, the summer sun radiate to increase the cooling load, the winter sun radiate to reduce the heating load. Therefore, different regions, different season, energy-saving building to the doors and Windows and its surrounding the shading of different product demand.
Plastic doors and Windows wide variety, called the window of supporting materials can choose freely. According to the different needs, can form a complete set of glass and various different shading products, which meet the energy saving building to the shading the requirements of the coefficient.
At present, the products are a lot of, have hacking sunvisors sunshade, hang curtain shade within and hollow glass built-in pages shade, etc. Plastic doors and Windows can and built-in pages shade hollow glass perfect form a complete set, color is harmonious. Supporting the built-in pages shade the hollow glass of plastic doors and Windows, they can adjust to achieve indoor natural lighting or completely shading effect. By test, the product the shading coefficient SC can within the scope of certain and effective adjustment, fully meet the energy saving design standards.
In addition, in raw material production in energy consumption, and unit weight of polyvinyl chloride (PVC) is 1/5 of the energy consumption of steel, aluminum door, 1/8 of the repeated use in recovery, plastic material recovery energy consumption also far lower than aluminum metal materials: plastic material crushing old material, which can be mixed with new material to squeeze into complementary material, or make pipe and other extrusion products; And aluminum metal products after recovery, after high temperature melting, and then composition adjustment, processing and other multi-process.it bubble can be made into products.
Therefore, with the improvement of people’s living standard and the scientific and technological progress, plastic doors and Windows in the advantage of energy-saving building area is becoming increasingly obvious. If the new houses a year of 2 billion square meters, construction area in accordance with the Windows and doors area accounts for 1/7 of the rough calculation, the new doors and windows every year about 300 million square meters. So, as long as they adhere to advocate producing quality products, excellent quality, plastic door window industry will be able to realize their ambition.
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