What Are the Problems with Prefabricated Panel Houses
Prefabricated panel houses have the following problems:
Low structural strength and poor earthquake resistance: Prefabricated panel houses are assembled from individual prefabricated panels, which inherently lack robustness and flexibility. Most prefabricated panels are designed with hollow cores, and the quantity and distribution of steel reinforcement are not as scientifically reasonable as those in cast-in-place houses. In the event of an earthquake, their earthquake resistance is extremely poor. Even slight vibrations can cause an increase in the number and size of cracks in the house, potentially leading to the collapse of the entire building. Additionally, improper decoration can easily trigger safety hazards, such as operations like drilling holes or hanging heavy objects that may damage the structure of the prefabricated panels.
Short service life: The service life of prefabricated panel houses is generally relatively short, possibly only 30 or 20 years. Over time, problems such as wall cracks and ceiling water leakage frequently occur. Many older prefabricated panel houses have been identified as "dangerous buildings," with high repair difficulty and cost, often requiring complete demolition and reconstruction.
Wall cracks and easy water leakage: The walls of prefabricated panel houses are prone to cracks, floor deformation, and window water leakage. On rainy days, it rains heavily outside and lightly inside the house. After the rain stops, water starts dripping inside, with the situation on the top floor being more severe. This not only affects living comfort but may also cause further damage to the house structure.
Poor thermal insulation, cold in winter and hot in summer: The thermal insulation performance of prefabricated panel houses is relatively poor, making them hot in summer and cold in winter. In extreme weather conditions, cold air seeps in through wall cracks and around doors and windows in winter, making it still feel cold even when sleeping under thick quilts at night. In summer, when outdoor temperatures soar, the interior also becomes very hot, requiring prolonged use of air conditioning and other cooling equipment, increasing energy consumption.
High permeability: The permeability of prefabricated panels is much greater than that of cast-in-place panels, determined by their spliced structure and material properties. Water leakage problems not only affect the living environment but may also cause damage to the interior decoration and furniture of the house.
Poor sound insulation: The sound insulation performance of prefabricated panel houses is relatively poor. Living inside, one can basically keep track of the "daily activities" of neighbors. Sounds such as people walking or talking upstairs and the TV sound from the neighboring house can be clearly heard, affecting the privacy and tranquility of living.
