During the application of thermal insulation with sound-absorbing properties, the spraying process is particularly suitable for construction. Polyurethane insulation is ideally carried out in an environment of 10 to 40 degrees Celsius. The operating temperature for polyurethane foam machines during construction is appropriate. If the construction temperature is lower, the reaction time of the sprayed foam will decrease, the shrinkage rate of the foam formation will also reduce, resulting in variations in foam size and increased material consumption. Higher temperatures lead to more foam, which can save materials, but the 10 to 40-degree range is more suitable for construction.

The chemical reaction heat of a foaming machine in polyurethane construction is a fixed value,不受外界因素干扰，but the heat value provided by the environment varies with the change in working environment temperature. When the working environment temperature is high, the environment can supply heat to the reaction system, which can enhance the reaction rate and shorten the reaction time. Its characteristic is that the foam is full and the density of the foam surface and core is similar. The roof and wall use polyurethane material structure. When the working environment temperature is low, part of the reaction heat is emitted into the environment. Spray foaming machine thermal damage: on the one hand, the foam maturation period is prolonged, and the foam shrinkage rate increases.

Results indicate that the foaming volume of the same foam material at 15°C is 25% less than that at 25°C. On the other hand, an insufficiently foamed or hard-skinned foam layer will form on the surface of the foam, which increases the amount of foam filling and raises the production costs. Polyurethane spray raw materials are simple to produce, have good properties, high production efficiency, wide application, and good shaping quality, offering numerous advantages and are commonly used raw materials in construction projects.