Aluminum windows and doors aluminum selection knowledge

The rational design of the sash ratio and orientation. Generally, the heat transfer coefficient is greater than with the windows facing the same area of ​​the wall heat transfer coefficient, therefore, heating energy window wall as the proportion of the heat increases. Lighting and ventilation in under the conditions allowed to control the proportion of window to wall ratio setting curtains and window insulation panels more efficient, that is smaller than the design window and wall area, the smaller the heat loss, energy-saving effect is better. Heat loss is also related with the outside windows facing south, north facing solar radiation intensity and high sunshine, window solar heat gained much.

Use energy-saving materials. Since the development of new materials, the main material composition window (frame materials, glass, seals, hardware accessories and shading, etc.) technology has made rapid progress, the use of energy-saving materials are aluminum clad wood windows and doors energy efficient way. Frame material: profiles for windows outside the window opening area of ​​about 15% to 30% percent, the energy loss of exterior windows in another weak link, so the choice of profiles for windows is also essential. Currently many types of energy-saving window frames, such as: aluminum insulation, insulation steel, plastic extrusions, aluminum alloy doors and windows aluminum and so on. Among them, aluminum insulation energy-saving effect is better, more widely used, which not only retains the advantages of aluminum, but also greatly reduces the aluminum heat transfer coefficient. Insulation aluminum is used in aluminum alloy sections in the thermal bridges (cold bridge) technology enables the profile is divided into inner and outer two. Insulation aluminum called aluminum doors and windows.