Energy-saving glass doors and windows have remarkable heat preservation effect

Not long ago, at a seminar on building wall and window energy conservation, a construction expert proposed that energy conservation should begin with the energy saving of doors and windows with a larger proportion of energy-consuming buildings. In the future, when developers build houses, they must use energy-saving glass doors and windows. Otherwise, they will not be accepted, filed, and dealt with as illegal buildings.

A person in charge of the China Construction Metal Structure Association helped the public calculate a savings account. He said that in terms of temperature alone, the use of energy-saving glass doors and windows and the use of ordinary glass doors and windows, the temperature can be about 4 °C. If the calculation is based on a family of three people living on 100 square meters, the indoor temperature is maintained at 18°C ​​to 26°C. In the winter, the calculation is based on a heating season of 4 months. Central heating costs about 1600 RMB. If the use of energy-saving buildings, can save 50% of the cost, which accounted for 50% of the cost savings of doors and windows, can save more than 400 yuan.

In the summer, the indoor temperature is kept at about 26°C. Only one 2-pronged air conditioner consumes 10 to 12 kWh of electricity a day. If energy-saving glass doors and windows with thermal insulation are used, at least 30% of the electricity can be saved. That is, the air conditioner is turned on for 2 hours and the room can maintain a comfortable temperature of 5 to 6 hours. Counting down from 3 to 4 kWh per day, it will save about 270 kWh in three months, save 150 yuan in the province, and save more than 25% energy-saving doors and windows.

According to the senior engineer Guangsheng of the Aluminum Doors,Window, and Curtain Wall Committee of the China Construction Metal Structure Association, energy-saving hollow glass doors and windows not only save energy, but also better isolate external space and reduce noise pollution. According to the classwork introduction: “A room facing the street, such as the residential building near Jinshui Road in Zhengzhou city, the noise during the day may reach 70 decibels to 90 decibels, while the use of silver oxide-coated hollow glass can at least reduce the noise by 25%. Although this cost is higher, people can enjoy a truly comfortable living space.” So, how much more expensive is the use of insulating glass than the use of ordinary glass? An industry expert said that currently in the market, ordinary house exterior glass per square Rice needs 200 yuan, while the price of energy-saving glass is about 1 times higher, but equivalent to the cost of housing, 1 square meter will also be a few dollars more, will not affect housing prices too much.