3x6 Container House Roof Production Process
The production process of the roof for a 3x6 container house typically includes three core steps: steel frame fabrication, roof panel assembly, and waterproofing treatment. The specific process is as follows:
1. Steel Frame Fabrication The foundation of the roof structure is the steel frame, which requires the welding of six columns and four perimeter beams on the roof of the house. Both the columns and perimeter beams are made of 5×5×2.0 mm square steel and are connected using full-weld techniques to ensure structural strength and stability. Full welding prevents gaps at the seams, preventing cracking due to stress or environmental factors later on. The steel frame must be fabricated strictly according to design dimensions, with errors controlled to the millimeter level to ensure the flatness of subsequent roof panel installation. Additionally, the chassis part of the steel frame (such as the frame in contact with the ground) must also be welded simultaneously to provide overall support for the roof, although this step does not directly involve roof panel assembly and falls under the scope of basic structural construction.
2. Roof Panel Assembly The roof panels are made of 50 mm thick cleanroom panels with white coatings on both sides. These panels are composed of a metal outer layer and an internal core material (such as polystyrene or rock wool), offering lightweight, thermal insulation, and fire-resistant properties. During assembly, the panels are cut according to the roof dimensions and fixed to the steel frame using self-tapping screws or rivets. Expansion joints of 3-5 mm should be reserved at the panel joints to accommodate material expansion and contraction due to temperature changes. To ensure roof flatness, the perpendicularity and levelness of the steel frame should be checked before assembly, and adjustments should be made if the error exceeds 2 mm.
3. Waterproofing Treatment After the roof panels are installed, waterproofing treatment must be applied to all panel joints, screw holes, and other vulnerable areas prone to water leakage. It is recommended to use glass curtain wall waterproof sealant, which has superior bonding strength and weather resistance compared to traditional silicone sealants, improving waterproof performance by 5-6 times and providing long-term resistance to UV radiation and acid rain erosion. Before applying the sealant, the joint surfaces must be cleaned to ensure they are free of dust and oil. The sealant should be applied evenly to fill the joints and form a continuous waterproof layer, with a recommended thickness of 2-3 mm. Additionally, special attention should be paid to the joints between the roof edge and the walls, where aluminum alloy gutters can be installed to guide rainwater for orderly drainage and prevent water accumulation and leakage.
Other Considerations Roof production should be carried out in a dry environment to avoid material moisture absorption or compromised welding quality due to rainy weather. After completing the waterproofing treatment, a 24-hour water spray test is recommended to check for any leakage points on the roof and promptly repair any defects. The entire process must strictly adhere to building safety regulations to ensure structural stability and long-term durability.
