Now the materials of doors and windows include aluminum alloy, plastic steel, plastic, solid wood and broken bridge aluminum. There is a common sense that everyone knows that the thermal conductivity of iron and aluminum is very high, and a little heat will be emitted, so the house is always very cold in winter.
With the rapid development of door and window industry, energy-saving doors and windows are attracting more and more attention now. So, do you know what energy-saving doors and windows are? Should energy saving of doors and windows be considered from the following aspects?
I. What is energy-saving doors and windows
the general view of the public is that energy-saving doors and windows actually use coated glass, low-e glass, etc. As long as this form of glass is used, it can be called energy-saving doors and windows. Actually, it is not! When it comes to doors and windows, it is actually a huge industrial chain, and it is also a combination of many marginal disciplines, such as rubber industry, such as wood processing industry, non-metallic surface treatment and many other disciplines. Any small detail will affect the overall performance of doors and windows, such as adhesive strips. If ordinary adhesive strips are used in the market, the adhesive strips may age and deform in less than one year, resulting in air leakage and poor sealing effect, how to save energy?
II. Three elements of energy saving for doors and windows
1. Material of doors and windows
now the materials of doors and windows include aluminum alloy, plastic steel, plastic, solid wood and broken bridge aluminum. There is a common sense that everyone knows that the thermal conductivity of iron and aluminum is very high, and a little heat will be emitted, so the house is always very cold in winter. A few years ago, plastic-steel windows and instrument frame were popular, but the windows made of this material were insufficient rigidity large, which was easy to become brittle and safe. Wooden window has excellent energy saving and environmental protection performance, but wooden window has its own defects, which are easy to burn, rot, crack, etc., and the price of wooden window is also expensive. Currently, broken bridge aluminum doors and windows its energy saving and environmental protection performance is the best. It not only solves the defect of high thermal conductivity of aluminum alloy, but also makes up for the disadvantage of low strength of plastic steel and plastic, and its price is relatively low compared with solid wood.
2. Glass
glass occupies most of the area of doors and windows, so it plays a very important role in energy saving index. There are several types of glass on the market: first, ordinary glass, which has not been tempered yet; Second, ordinary tempered glass; Third, coated glass; Fourth, low-e Glass. Each kind of glass can be subdivided. So which glass has the best energy saving effect? It should be low-e Glass, which can filter out harmful light such as infrared ray, far infrared ray and ultraviolet ray, with remarkable energy saving effect. In recent years, the state requires high-rise buildings to adopt hollow glass, which is two layers of glass. However, looking at the insulating glass in the market is specious, it may just be a simple two-layer combination, and the real heat insulation effect has not been achieved.
3. Energy saving of doors and windows is the overall energy saving
when it comes to the energy saving of doors and windows, it is actually the energy saving of the whole window. Relying on glass alone cannot achieve the purpose of energy saving. The sealing performance of doors and windows is also an important parameter affecting energy saving. If there is a problem with the sealing of doors and windows, energy will also be easily lost. The sealing of doors and windows includes the following aspects. The first is the selection of sealing materials. Good sealing strips are flexible and elastic, and have strong weather resistance. Even at minus 20 degrees, they can also maintain their toughness. In addition to the sealing strip, doors and windows also need to be processed by special technology, and the noise disturbing from the outside world will disappear.
All in all, the energy saving of doors and windows depends not only on the material, but also on the glass, but also on the craft of doors and windows!
