Aluminum-clad wooden windows, energy saving is the last word
In the past ten years, the refrigerator has been replaced with a smart one, the sofa has been replaced with leather, and the walls around me have been covered with new wallpapers... Many of my companions have left me one by one, and my shell has been affected by the wind. The sun and the sun gradually fell and became covered with dust, but the owner seemed to never want to replace me. I watched helplessly as the wind and sand passed through my loophole into the room, and watched the increasingly severe smog corrode the indoor air, because I couldn't keep up with the times, and I could no longer be proud of my beautiful surface. Disgusted by all new companions.
Suppose God gave me a chance to speak, I would definitely say to the owner: I have even replaced 7 iPhones, why haven't they replaced me...
Did you know? We spend nearly twice as much every year to pay for the doors and windows of our home that are not energy efficient! That’s how your high electricity bills are spent!
When you are enjoying the comfort of air conditioning or floor heating in the house, closing the doors and windows can only solve the problem of heat convection, but cannot prevent the conduction of heat. A lot of energy in the house is lost to the outside through the doors and windows of your home, and the waste of energy consumption also increases your energy expenditure. Assuming your doors and windows are energy efficient, things will be different.
Energy saving of doors and windows is an inevitable trend
What is the energy saving of doors and windows? In the door and window industry, there is a heat transfer coefficient, K value. The larger the K value, the more heat is transferred and the more energy is lost; on the contrary, the less heat is transferred, the less energy is lost.
According to the current EU standards, the K value of doors and windows is generally between 1.1 and 1.3. In recent years, the K value standard for doors and windows in Germany has dropped from 1.3 to 1.1, Switzerland has been adjusted from 1.3 to 0.7, and France plans to achieve zero energy consumption in buildings by 2020.
On the other hand, the current situation of energy saving of doors and windows in China is worrying. We lag behind developed countries by nearly 30 years. For example, the K value implemented in Shanghai is 2.8, which is equivalent to the German standard in 1984.
Fortunately, relevant government departments have now recognized the importance of energy-saving doors and windows, and more stringent energy-saving standards for doors and windows are being drawn up and promulgated all over the country. A criterion of ≤ 2.2 is also implemented.
At the Copenhagen Climate Conference, the Prime Minister made a solemn promise to the world: "By 2020, my country's carbon dioxide emissions per unit of GDP will drop by 40% to 50% compared with 2005, and by 2020, the proportion of non-fossil power in my country's one-time power consumption will reach 15%. %."
This means that in the next five years, my country will adopt effective measures to increase energy conservation and emission reduction. Building energy consumption, which accounts for a large proportion of social energy consumption, will be the first battleground, and doors and windows, as the parts of building openings and lighting, actually account for 50% of building energy consumption, so the door and window industry will become an inevitable trend to change to energy saving.
