Is the Export Container House Insulated?

Export container houses are generally insulated. The insulation performance of container houses is mainly achieved through the following methods:

1. Application of Insulation Materials
The insulation performance of container houses depends on the insulation materials used in the walls and roofs. Common insulation materials include expanded polystyrene (EPS) boards, rock wool boards, and polyurethane boards. These materials have low thermal conductivity and can effectively prevent heat transfer. For example, a combination of 0.8-millimeter corrugated steel plates and 100-millimeter rock wool sandwich panels can meet basic insulation requirements in environments as cold as -30 degrees Celsius. Additionally, when the thickness of the polyurethane foam layer exceeds 50 millimeters, it can block heat conduction, resulting in a wall heat transfer coefficient of ≤0.45W/(㎡·K), with an insulation efficiency 1.8 times that of traditional brick-and-mortar walls.

2. Optimization of Structural Design
The metal walls of container houses are prone to forming thermal bridges, leading to heat loss. Improvement solutions include adopting a thermal break lining structure, which involves filling hard polyurethane foam between the steel frame and interior wall panels and installing rubber insulation pads at the frame connections, reducing heat exchange efficiency between the interior and exterior of the container by about 40%. Furthermore, designing insulation structures at connection points and corners and isolating gaps around doors and windows can further reduce heat loss.

3. Sealing and Detail Handling
The sealing of container houses is crucial for insulation. Windows and doors are equipped with double- or triple-glazed units and sealed with edge strips to effectively prevent cold air infiltration. The joints between insulation materials need to be treated with sealing materials to ensure no thermal bridges are formed. For example, in Qinghai, adjusting the coating formula of the panels (outer layer of high-weather-resistant polyester resin and inner layer of moisture-proof aluminum foil) reduces condensation problems caused by temperature differences between day and night, improving insulation performance.

4. Assistance from Temperature Control Equipment
Modern container houses are usually equipped with air conditioners, electric heaters, or graphene floor heating systems to regulate indoor temperature. For example, in campsite dormitory projects, through thermal break structure treatment, the indoor temperature can be 8 to 10 degrees Celsius higher than the outside temperature in winter without heating, significantly reducing energy consumption dependence.