Polystyrene foam (Expanded Polystyrene referred to as EPS) is a lightweight polymer. It uses a polystyrene resin to add a foaming agent, and at the same time heats it to soften, generating gas, forming a rigid closed-cell foam.
The processing method can be divided into a pattern method and an extrusion method according to different foaming methods. This uniformly closed cavity structure makes EPS have the characteristics of low water absorption, good thermal insulation, light weight and high mechanical strength.
1. Protect the main structure of the building and extend the life of the building. The external insulation is to place the thermal insulation layer on the outside of the structure, which reduces the pressure caused by structural deformation due to temperature changes, and reduces the structure’s erosion by harmful substances and ultraviolet rays.
2. Effectively eliminate the “thermal bridge”. In the past, internal thermal insulation was used. The “thermal bridge” was difficult to avoid, and the external wall insulation effectively prevented the generation of thermal bridges and dew condensation.
3. Improve the tide temperature of the wall. Generally, the inner insulation needs to be provided with a vapor barrier layer, while the use of external insulation materials is far stronger than the main structure, and condensation usually does not occur inside the wall. The temperature of the entire wall is increased to further enhance the wall’s thermal insulation performance.
4. Conducive to room temperature stability, the use of external wall insulation, because the wall’s large heat storage capacity of the structural layer inside the wall, is conducive to room temperature stability.
5. Increase the area of the house. Can avoid secondary decoration damage to the insulation layer.
EPS is mainly used for building wall, roof insulation, composite board insulation, cold storage, air conditioning, vehicle, ship thermal insulation, floor heating, decoration carving and other applications.