Is a Container House Cold in Winter?
Whether a container house is cold in winter depends on the thickness of its wall panels and the配套 measures (supporting measures).
In the mild cold range of 0℃ to 5℃, container houses with different wall panel thicknesses perform differently. For a 50mm wall panel container, the temperature difference between indoors and outdoors is about 5℃ to 10℃. After closing doors and windows, the indoor temperature can be maintained at 5℃ to 10℃. It feels a bit cool but not significantly cold. With an electric heater, it can meet the needs of temporary residence. A 75mm wall panel container has better thermal insulation performance, with the temperature difference between indoors and outdoors increasing to about 10℃ to 13℃. The temperature is stable at 10℃ to 13℃, and it can be used for short-term stays without additional heating. A 150mm wall panel container can maintain the indoor temperature above 15℃. Relying only on sunlight and body heat, comfortable daily activities can be achieved.
When the temperature drops to the severe cold range of -5℃ to -10℃, the temperature difference between indoors and outdoors for a 50mm wall panel container shrinks to about 8℃. The indoor temperature can only be maintained at 0℃ to -2℃. Condensation appears on the inner side of the walls, and there is significant air leakage through door and window gaps. At night, water pipes may even freeze and block. It is only suitable for short-term storage of goods and not recommended for human residence. A 75mm wall panel container, when equipped with thermal-break aluminum double-glazed windows and sealing strips, can keep the indoor temperature stable at 8℃ to 12℃. After installing a small air conditioner or underfloor heating, it can reach a comfortable living standard of 18℃ and meet the needs of long-term stays. A 150mm wall panel container, with its thick thermal insulation layer, can still keep the indoor temperature above 12℃ without additional heating. After turning on the heating equipment, the room temperature can easily rise to 20℃ to 22℃. There is no condensation or thermal bridge on the walls, ensuring the comfort of residents even in heavy snow.
In the extreme cold range of -20℃ to -30℃, a 50mm wall panel container is completely unsuitable for living. The indoor temperature drops below zero, and the metal container may even be at risk of embrittlement. It can only be used as a temporary storage space and requires anti-freezing measures. A 75mm wall panel container needs to rely on high-power underfloor heating (with a power of not less than 80W/㎡) and whole-house sealing renovation to maintain the indoor temperature above 10℃. At the same time, roof snow-melting heating tapes need to be installed to prevent the container from being crushed by snow. A 150mm wall panel container shows extremely strong adaptability to extreme cold. Its three-layer thermal insulation structure can effectively block the infiltration of cold air. When combined with an underfloor heating system and a fresh air dehumidification device, the indoor temperature can be kept stable at 18℃ to 20℃. There is no frosting or mildew on the walls, and the roof has a qualified snow load capacity.
