Container House Insulation Project

The container house insulation project should be comprehensively implemented from four dimensions: materials, processes, structures, and equipment.

I. Selection of Envelope Structure Materials Mainstream products use steel structural frames paired with composite sandwich panels, where the density and thickness of the sandwich panels directly affect insulation performance. Materials with lower thermal conductivity have stronger insulation capabilities, for example:

• Polyurethane foam layer: The national 'Technical Standard for Steel Structure Integrated Housing' requires that the heat transfer coefficient of residential container walls be ≤0.45W/(㎡·K), and the thickness of the polyurethane foam layer should be more than 50mm to block heat conduction;
• Rock wool board: It has fire-resistant and sound-absorbing properties, with low thermal conductivity, suitable for scenarios with high fire safety requirements;
• Polystyrene foam: It has a relatively low cost but weaker fire resistance and needs to be used in combination with fire-resistant gypsum boards. In addition, the outer anti-corrosion color-coated steel plate can reflect sunlight, and the inner fire-resistant gypsum board and moisture-proof film work together to control humidity and stabilize temperature, forming a multi-layer insulation system.

II. Jointing Process and Sealing Treatment Gaps at the joints of panels are prone to causing cold bridge effects, and it is necessary to reduce the impact through excellent sealing processes:

• Use high-strength sealants or special connectors to ensure that there are no gaps at the joints;
• The fit between doors, windows, and frames should be enhanced with rubber seals or airtight strips, and the corners should be sealed with waterproof glue or metal trim strips;
• The patented design of Suzhou Tiandi Color Steel sets up a buffer protection chamber inside the side panels to further reduce heat conduction paths.

III. Optimization of the Overall Structural Airtightness

• Door and window design: Choose double-layer or triple-layer insulating glass with low thermal conductivity and install seals at the edges;
• Ventilation system: Set up ventilation slots at the bottom and equip adjustable sunshade canopies at the top to reduce the temperature inside the container by utilizing air convection;
• Structural reinforcement: Qingdao Jiecheng Hongye sets up reinforcing support frames inside the container installation frames to enhance structural stability and reduce sealing failures caused by deformation.

IV. Temperature Control Equipment and Auxiliary Measures

• Active temperature control: Install air conditioners, graphene floor heating, or entrance air curtains to quickly adjust the indoor temperature;
• Passive insulation: Hang insulation layers on the outside or install internal insulation boards to form additional insulation barriers;
• Detail handling: Use professional sealing materials at the joints of insulation materials, and adopt mechanical fixation and adhesive bonding for double protection at the connection between the insulation layer and the container structure.