External wall insulation is an advanced energy-saving technology. The external insulation system is located on the external surface of the building, directly facing the atmospheric environment. It needs to bear various external unfavorable factors to meet the requirements of external wall insulation. Its reliability, integrity and durability are particularly important. External insulation technology is mainly used in high-rise buildings, there are several problems need special attention.
First of all, the system and foundation wall should be fixed reliably.
The high-rise building should be able to bear large wind load, and the wall part will produce large negative wind pressure, namely suction. Therefore, the insulation layer should be combined with the base (inorganic materials) reliably, especially when using (organic material) insulation board as external wall insulation material, we must pay attention to this link. It is composed of a variety of materials, such as inorganic and inorganic materials, which are not compatible with the wall. Deformation and spalling.
Second, the fire performance of the system should comply with the relevant national laws and regulations.
For high-rise building external insulation, now need to comply with the relevant national laws and regulations, and can buy the corresponding certification materials.
Third, the exterior surface of Nanjing anti-corrosion and thermal insulation project is coated with paint / color mortar
The insulation layer in the insulation system is mostly light porous material with low shear strength, so the surface layer should not be used. If it is necessary to paste ceramic tiles, reliable measures should be taken to effectively fix the tiles on the surface of the surface materials to prevent the tiles from falling off and hurting people. In general, paint or color mortar should be used for external decoration layer, which has less pressure on thermal insulation material and decoration effect is not inferior to face brick.
Fourth, the durability of the system should meet the requirements.
Under normal use and maintenance conditions, the service life of external thermal insulation project shall not be less than 25 years. Before buying, understand the main components of insulation system materials, whether they have good anti-aging performance, long service life, and whether it is easy to corrode.
