For the main building, external wall insulation can prolong the service life of the building. Because it is on the outside of the building wall, the temperature difference of the main structure in each season can be very small, which can reduce the influence of thermal stress on the main structure, effectively protect the main structure, improve the durability of the wall structure, and thus prolong the service life of the building.
External thermal insulation of external wall is beneficial to eliminate or weaken the influence of thermal bridge around the junction of internal and external wall, external wall ring beam, constructional column, frame beam, top parapet and roof panel, thus reducing heat loss at thermal bridge, preventing local condensation caused by low internal surface temperature of thermal bridge in winter, and avoiding indoor mildew, condensation and cold infiltration.
For residents: to improve indoor comfort, the thermal capacity of the grass-roots wall is generally much larger than that of the insulation layer, so external insulation is beneficial to the thermal stability of the room. During the heating period, when the heating is uneven, the base stores a lot of heat, which can ensure that the internal surface temperature of the external wall will not drop sharply, so that the indoor temperature will not drop rapidly. In summer, the outdoor temperature rises. Due to the shielding effect of external insulation system, the temperature of foundation wall rises slowly, which can provide stable indoor temperature and help to improve human comfort. Generally speaking, the external insulation wall can make the room warm in winter and cool in summer, and reduce the energy consumption of heating and air conditioning.