When choosing home decoration, choose energy-saving doors and windows.
Many people don't pay attention to the doors, windows and glass of residential buildings when they buy a house, just feel "beautiful" from the appearance. Insiders pointed out that doors, windows and glass are not only the eyes of buildings, but also the key structure of building energy conservation.
The window frame of the fixed window is embedded in the wall body, and the glass is directly attached to the window frame, and the four sides contacting the glass and the window frame are sealed with a sealant. Under normal conditions, there is good water tightness and air tightness, and it is difficult for air to form convection through the sealant, so convective heat loss is extremely small.
Many people don't pay attention to the doors, windows and glass of residential buildings when they buy a house, just feel "beautiful" from the appearance. Insiders pointed out that doors, windows and glass are not only the eyes of buildings, but also the key structure of building energy conservation.
The bigger the form, the less energy saving
The large area of ​​the form heat dissipation is glass, not the window frame, and the glass accounts for 70% to 90% of the window area of ​​different types. The window types commonly used in buildings are generally sliding windows, casement windows and fixed windows.
The structure of the sliding window determines that it is not an ideal energy-saving window; structurally speaking, the casement window has a distinct advantage over the sliding window.
The window frame of the fixed window is embedded in the wall body, and the glass is directly attached to the window frame, and the four sides contacting the glass and the window frame are sealed with a sealant. Under normal conditions, there is good water tightness and air tightness, and it is difficult for air to form convection through the sealant, so convective heat loss is extremely small.
High-tech glass brings energy-saving revolution
In addition to the window, there is also a choice of glass. The light transmittance of glass materials, direct solar transmittance, relative heat gain and heat transfer coefficient have great influence on the indoor thermal environment of buildings and the energy consumption of heating and air conditioning. Therefore, some energy-saving glass should be known when making decoration choices. Material, performance, usefulness, etc.
Several energy-saving glass materials currently used are mainly coated glass, insulating glass and glass with film-type heat reflective material. General building doors and windows account for more than 40% of building energy consumption. For example, coated glass mainly includes solar heat reflecting glass, low-radiation glass and multi-functional coated glass.
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