Are Prefabricated Panels Still Used in Modern Houses?
Modern houses rarely use prefabricated panels, especially in newly built residential areas and rural self-built houses, where cast-in-place concrete has become the mainstream.
Safety hazards are the core reason for eliminating prefabricated panels
The earthquake resistance of houses built with prefabricated panels is almost zero, making them highly susceptible to sudden collapse during natural disasters such as earthquakes. The design of their connection points is fragile. When the house foundation settles or the walls crack, the anchoring structure between the prefabricated panels and the walls is prone to loosening, leading to a loss of overall stability. Additionally, some prefabricated panels are produced with substandard materials, resulting in brittle panels with weak impact resistance, further exacerbating safety risks.
Poor living experience restricts the application of prefabricated panels
The sound insulation and thermal insulation performance of prefabricated panel structures are significantly inferior to those of cast-in-place concrete. Due to the gaps between the panels, sound and heat are easily transmitted through the spaces, causing noticeable indoor noise interference and temperature fluctuations. At the same time, the connection points between the prefabricated panels and the walls are prone to cracking due to differences in material shrinkage, leading to issues such as ground water seepage and wall dampness. This not only affects the service life of the house but may also trigger disputes between neighbors due to water seepage.
Policy guidance drives technological iteration
The Ministry of Housing and Urban-Rural Development has explicitly required, through documents such as the Basic Safety Technical Guidelines for Rural Dangerous House Renovation, that newly built rural houses must meet building energy efficiency and livability standards. Such policies directly restrict the use of prefabricated panels in rural self-built houses and instead promote more integrated structural forms such as cast-in-place concrete. In the urban residential sector, newly built residential areas generally adopt frame-shear wall structures combined with cast-in-place floors, which not only comply with seismic codes but also meet the demands for spatial flexibility in modern architecture.
Overall performance differences determine technological substitution
Cast-in-place concrete forms an integrated structure through on-site pouring, creating rigid connections with walls and beams, and its deformation resistance and load transfer efficiency are far superior to those of prefabricated panels. Even if prefabricated panels are reinforced with ring beams and anchoring components, their end-lap design still suffers from stress concentration issues, leading to structural damage after long-term use. In contrast, cast-in-place floors can evenly distribute loads and effectively resist the impact of uneven foundation settlement, making them the mainstream choice for modern building structures.
Currently, only some old prefabricated panel houses still exist in urban fringe areas or rural regions, but these houses are facing trends of complete demolition or seismic reinforcement and renovation. With the improvement of building technical standards and living quality requirements, prefabricated panel structures have gradually withdrawn from the market for newly built structures.
