[China Glass Network] Many people do not know the energy-saving technical measures of doors and windows. Here we will explain the technical facilities of energy-saving doors and windows. (1) Minimize the area of ​​doors and windows Doors and windows are weak parts of building energy loss. The area accounts for about 30% of the building's outer protective structure. Its energy consumption accounts for about 2/3 of the total building energy consumption, and the heat transfer loss is 1/3. So the doors and windows It is the focus of energy saving in the external protection structure. Therefore, under the conditions of ensuring sunshine, lighting, ventilation and viewing, try to reduce the area of ​​the outer door and window openings. (2) Setting sunshade facilities Set the shading facilities and consider the location of the air conditioning equipment. Reduce sunlight to directly illuminate the roof, walls, windows and through the windows into the room, using the porch, balcony, provocative, sun visor, heat reflective curtains and other shading measures. The sunshade facilities for doors and windows can be made of special glass, double glazing, curtains or sun visors. (3) Improve the airtightness of doors and windows According to some data, the number of room air exchanges is reduced from 0.8h-1 to 0.5h-1. The cooling consumption of buildings can be reduced by about 8%. Therefore, doors and windows with good airtightness should be used in the design. Improve the airtightness of doors and windows by improving the structure of doors and windows (such as the installation of sealing strips). Prevent heat transfer from air convection. Adding a sealing strip is one of the important means to improve the airtightness of doors and windows. (4) Try to use new insulation and energy-saving doors and windows The new insulated energy-saving doors and windows (plastic steel doors and windows) made of energy-saving materials with large thermal resistance and low energy consumption can greatly improve the thermal performance. At the same time, special attention should be paid to the selection of glass. The main purpose of the glass window is lighting, but because the cooling capacity of the glass window accounts for 20% to 30% of the large load of the refrigerator, the heat consumption of the single-layer glass window in winter accounts for 10% to 20% of the boiler load, so the control window When the wall ratio is in the range of 30% to 50%, the window glass should be selected as characteristic glass, such as heat absorbing glass, reflective glass, and heat insulating light shielding film. (5) Reasonable control of window to wall ratio The ratio of window to wall is the ratio of the area of ​​the window opening to the wall. Increasing the ratio is not conducive to the energy-saving windows and doors of air-conditioned buildings. The area of ​​the external wall and the area of ​​the window with large temperature difference on both sides of the air-conditioned room should be minimized. Specific requirements are imposed on controlling the ratio of energy-saving doors and windows, the thermal conductivity of external walls and roofs. The heat consumption through the outer window accounts for 35% to 45% of the total heat consumption of the building. Therefore, it is very important to control the window-to-wall ratio reasonably under the premise of ensuring indoor lighting and ventilation during the pre-construction design. Generally, the north direction is not more than 25 %; south is no more than 35%; east-west is no more than 30%. Air Covered Yarn,Air Covering Yarn,Spandex Covering Yarn,Spandex Air Covering Yarn Shaoxing Shiffon Textile Co., Ltd , http://www.shiffontex.com