Prefabricated Houses: Cold in Winter and Hot in Summer
Prefabricated houses indeed have the problem of being cold in winter and hot in summer, which is mainly related to their poor thermal insulation performance.
In winter, the spliced structure of prefabricated houses has many wall gaps, and the sealing around doors and windows is often not ideal. In cold weather, cold air can easily seep into the room through these gaps and edges. Due to the lack of effective thermal insulation materials to block heat loss, the indoor temperature drops rapidly. Even if residents cover themselves with thick quilts, they still find it difficult to withstand the cold and feel extremely chilly, resulting in a poor living experience. For example, in prefabricated panel houses in some cold regions, residents often need to rely on additional heating equipment, such as electric heaters and stoves, to barely maintain a basic indoor temperature. However, even with these measures, it is difficult to achieve a comfortable indoor temperature.
In summer, the problem of insufficient thermal insulation in prefabricated houses becomes even more prominent. When the outside temperature rises, due to the lack of effective thermal insulation materials in prefabricated panel houses, heat quickly transfers through the walls and roof into the room. In hot weather, the indoor temperature can soar to forty or fifty degrees Celsius, making the room feel like a steamer. This high-temperature environment not only makes people feel unbearably hot but may also have an impact on the health of the occupants, such as causing heatstroke and heat exhaustion. Moreover, due to the excessively high indoor temperature, the operating load of air-conditioning and other refrigeration equipment increases significantly, consuming a large amount of electricity and potentially leading to frequent equipment failures, further affecting living comfort.
The root cause of the problem of prefabricated houses being cold in winter and hot in summer lies in their spliced structure and the lack of effective thermal insulation materials. The spliced structure results in poor overall sealing of the house, allowing heat to easily escape or enter. The lack of thermal insulation materials makes it impossible to effectively block the impact of external temperature changes on the indoor environment. Therefore, when designing and constructing prefabricated houses, it is necessary to fully consider the issue of thermal insulation, using appropriate thermal insulation materials and sealing techniques to improve the living comfort of the houses.
