Prefabricated house is thin-walled light steel structure, which is waterproof and anti-corrosive.can be made according to the customer's requirements. The transportation of houses is convenient and cost saving, and the house can be easily assemble and disassemble for several times. All the steel components are painted and anti-rust which can be normally used for more than 10 years. Wall panel are color steel sandwich panel made of double-sided steel sheets and expanded polystyrene middle layer wigh special adhesive. Roof panels are also color steel sandwich panels made of single-layer steel sheets and polyurethane with special adhesive. the entire roof is double-pitched and the roof slope is designed to 1:5, ensuring easy flow water. Doors,windows and interior partition can be flexibly fixed, staircase are designed outside the house.