How to Keep Container Houses Warm
Container houses can achieve warmth by optimizing insulation structures, selecting high-efficiency thermal insulation materials, enhancing airtightness, and reasonably configuring heating equipment. The specific measures are as follows:

1. Selection and Application of Insulation Materials
The core of the thermal insulation performance of container houses lies in the selection of thermal insulation materials. For exterior walls, it is recommended to use rock wool boards, polyurethane foam boards, or polystyrene (EPS) boards. These materials have low thermal conductivity and can effectively block heat transfer. For example, rock wool boards not only have excellent thermal insulation performance but also have fire-resistant properties. Installing them in the middle of the walls of color-steel houses can significantly improve the stability of indoor temperature. For interior walls, closed-cell insulation designs can be adopted, such as expanded perlite boards or plastering layers, to further reduce heat loss. For extremely cold regions, reference can be made to patented technologies to set up compartments inside the containers and lay insulation racks to prevent direct contact between battery clusters and other equipment with the ground, reducing the cold bridge effect.
2. Structural Design and Airtightness Optimization
The warmth of container houses needs to start with structural design. Insulation structures should be added at connection parts and corners, such as filling with expanding foam or installing insulation strips, to fill gaps and reduce temperature loss. For doors and windows, double- or triple-glazed units should be used, and windproof sealing strips should be installed to prevent the infiltration of cold air. For example, through airtightness optimization, the indoor temperature of activity board houses on construction sites in mountainous areas of Guizhou can be 8-10℃ higher than the outdoor temperature. In addition, insulation roofs can be installed on the roofs, and skylight ventilation windows can be set up to regulate indoor humidity and temperature through ventilation structures, avoiding stuffiness or dryness.
3. Heating Equipment and Auxiliary Measures
In low-temperature environments, reasonably configuring heating equipment is crucial. Small electric heaters, air conditioners, or graphene floor heating can quickly raise the indoor temperature, but attention should be paid to energy conservation and safety. For example, in a color-steel house with a rock wool sandwich panel, combined with a small electric heater, a comfortable temperature can be reached within half an hour, and it does not need to be turned on all day. Laying carpets or thermal insulation boards on the floor and installing cold-proof materials beside the bed can further reduce heat loss from the bottom up. For extremely cold regions, reference can be made to the design of container-type thermal insulation energy storage power stations, where heating is provided to the compartments through air-conditioning pipelines to ensure the normal operation of battery clusters and other equipment in low-temperature environments.
4. Detail Handling and Safety Protection
The detail handling of the insulation system directly affects the overall effect. The joints of insulation materials need to be sealed with sealant to prevent heat leakage from gaps. Electrical wiring needs to be checked regularly to prevent fire risks caused by the use of heating equipment. For example, container houses built with flame-retardant materials were used in the resettlement sites after the earthquake in Gansu, equipped with stoves and carbon monoxide poisoning protection pipelines, taking into account both warmth and safety. In addition, humidity control should not be ignored. The synergistic effect of inner-layer fire-resistant gypsum boards and moisture-proof films can maintain indoor dryness and avoid a cold feeling caused by humidity.




