Three elements of energy-saving doors and windows
The general public believes that energy-saving doors and windows 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. In fact, it is not! When it comes to doors and windows, it is actually a huge industrial chain. It is also a combination of multiple marginal disciplines, such as the rubber industry, the wood processing industry, non-metallic surface treatment, and many other disciplines. Any small detail will affect the overall performance of doors and windows. For example, if ordinary rubber strips on the market are used, the rubber strips may age and deform in less than a year, causing air leakage, and the sealing effect is very poor. How can we talk about energy saving?
Energy-saving doors and windows should be considered from the following aspects:
1. Door and window materials
Now the materials of doors and windows are aluminum alloy, plastic steel, plastic, solid wood, and broken bridge aluminum. There is common sense everyone probably knows, that is, the thermal conductivity of iron and aluminum is very high. Any heat will be dissipated, so the house is always very cold in winter. In the past few years, plastic steel windows and plastic windows have been popular. The windows of this material are not strong enough, and easy to become brittle, and safety can be imagined. Wooden windows have excellent energy-saving and environmental protection performance, but wooden windows have their own defects. They are not easy to burn, easy to rot, easy to crack, etc. At the same time, wooden windows are expensive. At present, the energy-saving and environmental protection performance of broken bridge aluminum doors and windows is better. It not only solves the shortcomings of high thermal conductivity of aluminum alloy, but also makes up for the disadvantages of low strength of plastic steel and plastic, and the price is relatively low compared to solid wood.
2. Glass
Glass occupies most of the area of doors and windows, so it plays a very important role in energy-saving indicators. There are several types of glass on the market: one is ordinary glass, which has not been tempered; the second is ordinary tempered glass; the third is coated glass; the fourth is Low-E glass. Each type of glass can be further subdivided. So which glass has a better energy-saving effect? It should be Low-E glass, which can filter out harmful light such as infrared, far infrared, ultraviolet rays, etc., and has a significant energy-saving effect. In recent years, the state has required high-rise buildings to use hollow glass, that is, two layers of glass. But looking at the hollow glass on the market, it seems true or false. It may be just a simple two-layer, and the real insulation effect is not achieved.
3. Energy saving of doors and windows is overall energy saving
When it comes to energy saving of doors and windows, it is actually 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°, they can still maintain their toughness. In addition to the sealing strips, doors, and windows also need to be processed by special processes, and the disturbing noise from the outside world will disappear.