Why do buildings now have to keep their facades warm?

The exterior insulation system is composed of insulation layer, protective layer and fixing material (adhesive, anchor firmware, etc.) and is suitable for non-resealable insulation construction installed on the exterior surface of the outer wall.
why do today's buildings have to do external wall insulation?
in the maintenance structure of the exterior wall of the building, the proportion of the wall is larger. The heat lost by the wall is about 20% of the total heat dissipated by the building, and the heat absorbed through the exterior wall in summer is about 30% of the total heat absorbed by the

. Therefore, the insulation design of the exterior wall is very important, more and more people pay attention to and widely used.
is widely used in building energy saving in hot summer, winter and cold areas of China is the external wall insulation system. Compared with the insulation inside the outer wall, it has more outstanding system advantages.
external wall insulation system advantages:
1, external insulation can avoid the generation of thermal bridge
1) external wall should not only bear the weight but also play the role of insulation, the thickness of the outer wall must be larger. With high-efficiency insulation, the thickness of the exterior wall is reduced.
2) If the use of internal insulation, the thinner the main wall, the thicker the insulation layer, the more serious the problem of hot bridge. In cold winters, hot bridges not only cause additional heat loss, but can also make the inner surface of the outer walls wet, dewy, and even moldy and flowing.
3) Because the thermal bridge is avoided by external insulation, under the condition of using the same thickness of insulation material, the thermal loss of external insulation is reduced by about 1/5, thus saving heat energy.
2, conducive to building winter warm summer cool
after external insulation, due to the internal physical wall heat capacity, indoor storage of more heat, so that such as solar radiation or intermittent heating caused by indoor temperature changes slow down, room temperature is more stable, more comfortable life.
At the same time, the summer outer insulation layer can reduce the entry of solar radiation and outdoor high temperature of the combined impact, so that the outer wall surface temperature and indoor air temperature can be reduced, winter also makes the solar radiation heat, human cooling, household appliances and cooking heat and other factors produced by the "free heat" to be better used, conducive to energy conservation.
3, to create a comfortable thermal environment
after external insulation, indoor residents actually feel the temperature, both indoor air temperature and the inner surface temperature of the enclosed structure. This proves that by increasing the internal surface temperature of the outer wall through external insulation, even if the indoor air temperature is reduced, it can also get a comfortable thermal environment. In this way, the heating load can be reduced and heat energy can be saved.
4, so that the life of the main wall is extended
due to the use of external insulation, the internal brick wall or concrete wall is protected. The continuous change of outdoor climate causes the larger temperature change inside the wall to occur in the outer insulation layer, so that the internal main wall winter temperature increases, humidity decreases, temperature change is more flat, thermal stress decreases, so the main wall produces cracks, deformation, damage risk greatly reduced, the life can be greatly extended.
5, conducive to indoor decoration for heavy nail hanging
1) the use of internal insulation wall hanging objects and even the installation of curtain boxes, radiators, etc. are more difficult.
2) external insulation can avoid the occurrence of these problems, especially when the exterior walls must be renovated or earthquake-resistant reinforcement, plus external insulation layer is an economical, favorable time.
6, conducive to decoration speed and household relocation
1) in the house decoration, if the use of internal insulation, interior decoration, installation of heating and other operations, must wait for the internal insulation layer to do a good job before carrying out.
2) If the use of external insulation, you can work in parallel with indoor engineering, is conducive to speed up the pace of construction and decoration.
3) insulation exists to make residents increase the relocation of furniture, construction disturbance, temporary relocation and many other troubles, resulting in unnecessary disputes.
4) the use of internal insulation, occupy indoor use area, that is, reduce indoor use area, for households is not cost-effective.
7, increased facade decoration effect
external insulation can make the building more beautiful, as long as the building facade design, the exterior of the building will be very good. Especially in the old house transformation, external insulation can make a big difference to the face of the house.
8, a wide range of applications
external wall insulation is suitable for both heating and air-conditioning buildings, both for civil and industrial buildings, for new buildings, but also for existing buildings, can be used in low-rise, multi-storey buildings, but also in high-rise and ultra-high-rise buildings.
9, the comprehensive benefits are significant
Although the cost per square meter of external insulation works is relatively higher than the internal insulation, but as long as the technical selection is appropriate, the cost per unit area is not much higher. Especially because the external insulation ratio of internal insulation increased the use area of nearly 2%, in fact, the unit use area cost is reduced. Coupled with a series of benefits, such as saving energy and improving the environment, the comprehensive benefits are remarkable.
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