One of our concerns today is the lack of energy reserves on the planet. Therefore, various methods have been used to reduce and optimize energy consumption. Buildings are one of the largest sources of energy waste, which in the event of excessive energy consumption, in addition to fueling the problem of energy crisis in the world, will also exacerbate environmental pollution.
The construction sector in each country accounts for more than a third of the country's energy consumption, which is valued at $ 6 billion annually at global prices.
The rational use of energy has been at the forefront of the work of countries without fossil fuels, forcing them to take the issue of energy efficiency seriously in one of the main centers of energy consumption, namely residential buildings.
Thus, this issue was raised and for several years, countries such as Germany, Sweden, Italy, England, etc. have special laws in the field of construction and the use of thermal insulation, improving the method of heating and cooling and the overall structure of the building to optimize Energy consumption has been formulated in it, which is mandatory. The implementation of these cases has had interesting results, so that they have succeeded in saving up to 83% in energy consumption by applying these rules. According to the balance sheet of 2008, energy consumption in the residential and commercial buildings of Iran is about 43% of total energy consumption, which will save about 83% in that figure will be very significant.
.
The role of windows in the energy loss of buildings
Experts report that 40-50% of energy waste is allocated to building windows. Windows, which are in fact an integral part of any building, play an important role in conducting heat and radiant heat in any building complex. Windows waste energy in a building in two ways;
Difference between indoor and outdoor air temperature
Infiltration of outside air into the building
New technologies for windows have increased the possibility of better use of energy and the emergence of comfort in the environment and have provided more scientific solutions to window consumers. Due to the significant impact of windows on energy consumption in, It is necessary to consider the items that can reduce energy loss through windows.
By replacing old doors and windows with double-glazed windows, this share is reduced by 20%. In fact, by replacing the windows, you can save 20-30% of the total energy of the building.
