Experience of Using Prefabricated Houses

The experience of using prefabricated houses varies significantly depending on the type, requiring a comprehensive assessment based on the specific type and usage environment.

Cement Prefabricated Houses: Strong Stability but Require Regular Maintenance

Cement prefabricated houses generally have good structural stability, durability, and earthquake resistance, maintaining good safety even after three years of use. However, they are significantly affected by the environment, prone to leakage and dampness during the rainy season or high-temperature periods, necessitating regular inspections of the sealing at roof and wall joints, as well as cleaning of the drainage system to prevent water accumulation. Additionally, the high thermal conductivity of cement can lead to higher indoor temperatures in summer, requiring shading or ventilation design to improve comfort.

Prefabricated Panel Houses: Concentrated Issues, Require Careful Selection

Prefabricated panel houses have several prominent defects:

• Insufficient Structural Safety: The toughness of spliced prefabricated panels is lower than that of cast-in-place reinforced concrete. Their hollow design and low steel density result in weak earthquake resistance, making them prone to collapse or cracking during earthquakes or strong winds; cracks can further weaken wall strength, increasing the risk of collapse.
• Poor Environmental Adaptability: They suffer from severe leakage during humid weather and heavy rain, and long-term damp environments can foster mold and bacteria, affecting living health; their thermal insulation performance is poor, leading to stuffy summers and cold winters, requiring additional use of air conditioners or heaters, increasing energy consumption and living costs.
• Poor Sound Insulation: The thin walls result in insufficient sound insulation, potentially affecting sleep quality.
• Limited Service Life: Generally lasting only 30 to 40 years, they require regular maintenance or replacement of components.

Common Advantages of Prefabricated Houses

Despite their defects, prefabricated houses still offer significant advantages:

• High Construction Efficiency: Components are prefabricated in factories and assembled on-site, shortening the construction period by more than 50% compared to traditional buildings; for example, a 100-square-meter residence can be completed in just 1-2 months.
• Controllable Costs: Through material and labor optimization, construction costs typically range from 1000 to 3000 yuan per square meter, far lower than traditional high-end residences (over 5000 yuan per square meter).
• Environmental Protection and Energy Efficiency: Factory production reduces dust, noise, and waste pollution; recyclable materials like light steel and wood are used, and some high-end models integrate solar panels and smart energy-saving systems to further reduce energy consumption.
• High Flexibility: Modular design supports custom layout and even disassembly and reassembly, suitable for scenarios requiring frequent relocation, such as tourist homestays and construction site dormitories.
• Controllable Quality: The strict factory production environment makes it easier to control component quality.

Summary: If long-term stability and low maintenance costs are pursued, cement prefabricated houses are a better choice; if the budget is limited and rapid construction is required, and regular maintenance is acceptable, the common advantages of prefabricated houses remain attractive; however, due to the safety and comfort defects of prefabricated panel houses, it is recommended to carefully evaluate the usage scenario.