Is a Container House Cold in Winter?

Whether a container house is cold in winter depends on its construction and insulation measures. Container houses that are specially designed and equipped with reasonable insulation methods can meet residential needs under different levels of coldness, while ordinary standard containers can be quite cold when used directly.

Performance of different wall panel thicknesses in different temperature ranges
In the mild cold range of 0℃ to 5℃, a 50mm wall panel container can maintain an indoor temperature of 5℃ to 10℃ with doors and windows closed, and can meet temporary residential needs when paired with an electric heater. A 75mm wall panel container can keep the temperature stable at 10℃ to 13℃ and allows for short-term stays without additional heating. A 150mm wall panel container can maintain an indoor temperature above 15℃.
In the severe cold range of -5℃ to -10℃, a 50mm wall panel container is only suitable for short-term storage of goods and is not recommended for human habitation. A 75mm wall panel container, when equipped with thermal-break aluminum double-glazed windows and sealing strips, and fitted with a small air conditioner or floor heating, can achieve a comfortable residential standard of 18℃. A 150mm wall panel container can still maintain an indoor temperature above 12℃ without additional heating, and the room temperature can easily rise to 20℃ to 22℃ when heating equipment is turned on.
In the extreme cold range of -20℃ to -30℃, a 50mm wall panel container is completely unsuitable for habitation. A 75mm wall panel container relies on high-power floor heating (with a power of no less than 80W/㎡) and whole-house sealing renovations to maintain an indoor temperature above 10℃. A 150mm wall panel container, when combined with a floor heating system and a fresh air and moisture-proof device, can keep the indoor temperature stable at 18℃ to 20℃.

Methods to improve insulation performance
Ordinary standard containers have poor insulation performance due to their thin metal structure and can feel cold in winter when used directly, but this can be improved through various methods. Adding an insulation layer inside the container, such as insulation rock wool or polystyrene boards, can effectively reduce heat loss. Replacing single-glazed windows with double-glazed ones can enhance the insulation and heat-proofing effect of the windows. Installing heating equipment such as air conditioners, radiators, or floor heating can directly raise the indoor temperature. Through these measures, the insulation performance of container houses can be significantly improved, enabling them to maintain a suitable temperature in winter.