Can Prefabricated Panels Be Used in House Construction?

It is not recommended to use prefabricated panels in house construction. Although prefabricated panel houses have certain advantages in terms of cost and construction speed, their numerous issues make it difficult to meet the safety and durability requirements of modern house construction. The specific analysis is as follows:

1. Insufficient Safety
Prefabricated panels are installed by splicing, with panel seams typically overlapping on walls. Even with reinforced ring beams, their overall structural stability is still far inferior to that of cast-in-place concrete. The cast-in-place process forms a monolithic structure through continuous pouring, effectively dispersing loads and resisting external forces such as earthquakes. In contrast, the splicing joints of prefabricated panels are prone to becoming structural weak points. Over long-term use, cracks may appear at panel seams due to settlement differences or material aging, potentially leading to collapse risks, especially in earthquake-prone areas where safety hazards are more prominent.

2. Poor Waterproofing and Durability
The seams at the joints of prefabricated panels pose a waterproofing challenge. Even if sealing materials are used during construction, material aging and thermal expansion and contraction caused by temperature changes over time can compromise the seal, leading to leakage issues. Leakage not only affects living comfort but may also corrode internal structures, shortening the building's lifespan. Additionally, the material of prefabricated panels is susceptible to environmental erosion, with strength declining after long-term exposure, further exacerbating the risks of cracking and leakage.

3. Subpar Sound Insulation
Prefabricated panels have limited thickness and a hollow interior structure, resulting in weak sound insulation capabilities. Noise from adjacent rooms or upper and lower floors can easily transmit through the panels, affecting living privacy and quality. In contrast, cast-in-place concrete has a higher density, effectively absorbing and blocking sound to provide a quieter living environment.

4. Policy and Industry Trend Restrictions
In recent years, the Ministry of Housing and Urban-Rural Development has repeatedly emphasized improving building quality standards and promoting green buildings and earthquake resistance requirements. For example, new regulations for rural self-built houses explicitly restrict the use of prefabricated panels and encourage the adoption of safer structural forms such as cast-in-place or prefabricated buildings. Meanwhile, in urban village renovation and old residential area renewal projects, prefabricated panel houses are prioritized for renovation due to safety hazards, indicating a trend toward their gradual phase-out.

Conclusion
Considering safety, durability, living experience, and policy guidance, house construction should prioritize cast-in-place concrete or code-compliant prefabricated structures. If prefabricated panels must be used due to special needs, strict quality control during construction, enhanced joint treatment, and regular maintenance are essential. However, in the long run, they remain an less-than-ideal choice.