当前，节能会展建筑普遍使用的外墙的外保温系统有：保温板现浇混凝土外保温

At present, the external insulation systems of external walls commonly used in energy-saving exhibition buildings include: thermal insulation board cast-in-place concrete external insulation system, rigid foam insulation system, etc. The method of thermal insulation in the external wall is to stick the thermal insulation material to the inside of the external wall. This method does not have high requirements for the waterproofness and weather resistance of the decorative layer and the thermal insulation layer. However, under this approach, the internal thermal insulation system of the building will keep the temperature difference between the internal space and the external space of the building at a large level. Under the continuous effect of the temperature difference, the thermal insulation layer will often break, due to the inevitable The appearance of cold bridges and hot bridges is very easy to cause condensation on the contact surfaces of frame beams, columns, roofs, etc. with the insulation layer, and may also reduce the indoor area of ​​the building. The construction method of the outer wall sandwich insulation is to leave a certain cavity in the middle of the wall to fill the insulation material during construction. The construction methods of the brick wall and the concrete wall are different. The outer wall sandwich insulation is complicated and is not convenient for construction. It is easy to form a cold bridge at some structures, which is not conducive to thermal insulation. Mostly used in severe cold areas and cold areas

At present, energy-saving exhibition buildings commonly used external insulation system of the outer wall is: insulation board is now poured concrete external insulation system, hard foam insulation system. The practice of insulation inside the exterior wall is to attach the insulation material to the inside of the outer wall, which is not highly required for the waterproofing and weather resistance of the finish layer and the insulation layer. However, in this way, the building's internal insulation system will make the building space and building space temperature difference to maintain a larger level, in the continuous role of temperature difference, the insulation layer will often break, because of the inevitable cold bridge and hot bridge, it is very easy to make frame beams, columns, roofs and other contact surfaces with the insulation layer condensation phenomenon, and may be associated with the use of the building interior area. The construction practice of external wall sandwich insulation is to leave a certain cavity in the middle of the wall to fill the insulation material, brick wall and concrete wall construction practice is not the same, the external wall sandwich insulation practice is complex, not easy to construct, in part of the construction is easy to form a cold bridge, not conducive to thermal insulation. Mostly used in cold and cold areas

At present, the external insulation system of the external wall of energy-saving exhibition building is widely used: the external insulation system of the cast-in-place concrete of the insulation board, the hard foam insulation system, etc. The internal insulation method of the external wall is to stick the insulation material on the inner side of the external wall, which has low requirements for the waterproof and weather resistance of the facing layer and the insulation layer. However, in this way, the internal insulation system of the building will keep the temperature difference between the internal space and the external space of the building at a large level. Under the continuous effect of the temperature difference, the insulation layer often breaks. Because of the inevitable occurrence of cold and hot bridges, it is very easy to make the contact surfaces of frame beams, columns, roofs and the insulation layer condense, and may be reduced accordingly Less indoor use area. The construction method of external wall sandwich insulation is to leave a certain cavity in the middle of the wall to fill the insulation materials during the construction. The construction methods of brick wall and concrete wall are different. It is mainly used in severe cold area and cold area<br>