During seasonal construction, extruded polystyrene board can serve as a thermal insulation material for exterior wall formwork. However, when the ambient temperature is below 5 ℃, the surface of the extruded polystyrene board should be scraped with anti freezing JS-2 extruded polystyrene board interface agent, and the technical indicators should reach -15 ℃. It is normal for extruded boards to deform after being exposed to rain and sunlight, as their low thermal conductivity leads to insufficient thermal expansion and contraction reactions, resulting in insufficient elasticity and easy deformation.

There are many impurities inside the insulation board made of recycled plastic, which can easily lead to opacity or color changes even if light passes through. It can be seen that the aperture has a yellowish tint and the edges are also small. Extruded polystyrene board is widely used for insulation of dry walls, flat concrete roofs, and steel structure roofs, as well as for moisture-proof insulation of low-temperature storage floors, low-temperature floor auxiliary heating pipes, parking platforms, airport runways, highways, and other fields.

External wall insulation boards are generally attached to the wall surface through bonding and anchoring processes. The density of extruded boards is low, making construction and transportation convenient, and the additional load on the building's external walls after the board construction is completed is relatively small. Firstly, it is also because the structure of XPS boards is quite unique nowadays, so the compressive strength of XPS extruded boards is extremely high, and the impact resistance of XPS extruded boards is strong. This is also because different models of XPS have different compressive strengths in terms of thickness. The extrusion process is used in the molding process. So the material produced has a continuous and uniform surface layer and a closed cell honeycomb structure. With such a structure and lightweight, high-strength surface material, it has good compressive performance.