1. For steel structure mobile houses, attention should be paid to the purlins. The model of the steel frame should not be too small. After the construction is completed, the connection and reinforcement of each part should be inspected.

 2. If the walls of the steel structure mobile house are made of polystyrene as sandwich panels, attention should be paid to fire prevention. For example: electric welding construction should not be carried out close to the wall, fire protection devices should be installed on heating stoves in winter, metal pipes should be used when laying indoor lines, and metal pipes should be installed with grounding or fire-resistant material pipes. In addition, casing should be added when passing through the wall. It is strictly prohibited to use a blowtorch on roofs that are protected and require waterproofing! In open areas, when the roof tile iron sheet is less than 0.6 mm, the house should be equipped with lightning rods.