Prefabricated Assembled Houses in Xinxiang

Prefabricated assembled houses in Xinxiang have multiple advantages, but also some shortcomings, as detailed below:

Advantages

1. Convenient and Efficient Installation: Prefabricated and assembled lightweight panels are widely used in the Xinxiang area, significantly increasing the installation speed compared to traditional concrete floor slabs. For example, at a construction site in Xinxiang, the installation of floor slabs originally planned to take 15 days was completed in just 5 days using lightweight panels, greatly shortening the construction period and improving project efficiency. New-style prefabricated houses in Henan are also very popular in the rural areas of Xinxiang. All components are pre-cast in the factory and, after being transported to the homestead and the foundation laid, a crane, along with a few workers, can assemble them on-site. A main house of about 200 square meters can be built in as little as four hours.
2. Lightweight and Cost-Saving: Lightweight panels are, well, lightweight. A single lightweight panel weighs approximately 20 - 30 kg/㎡, which is only 60% of that of traditional cement panels. This reduces the amount of reinforcement required for load-bearing structures such as beams and columns. In a multi-story residential project in Xinxiang, the use of lightweight panels resulted in a 25% reduction in the amount of steel reinforcement for beams and columns and a cost reduction of about 10%. The base price of a new-style prefabricated house in Henan is a little over three hundred yuan per square meter, and the main structure of a 100-square-meter house can be completed for just over thirty thousand yuan.
3. Environmentally Friendly and Energy-Efficient: The production process of lightweight panels reduces the use of sand, gravel, and cement, resulting in 80% less construction waste compared to traditional construction methods. The panels come with built-in thermal insulation layers, and a local energy-saving demonstration community in Xinxiang has achieved 'warm winters and cool summers' after using them, saving more than 15% on monthly electricity bills.
4. Wide Range of Applications: They can be used for residential buildings, factories, warehouses, and temporary structures. In rural self-built houses in Xinxiang, lightweight panels are used instead of red brick partition walls, resulting in shorter construction periods and better sound insulation. In an expansion project of a food factory in Xinxiang, lightweight panels were used as partition walls, and the zoning was completed in just 3 days, improving production efficiency by 20%.

Shortcomings

1. Prone to Water Leakage at Joints: If the construction at the joints of prefabricated assembled houses is not up to standard, water leakage problems may occur later, affecting the service life and living experience of the houses.
2. Inferior Seismic Performance Compared to Monolithic Cast-in-Place Houses: Compared to monolithic cast-in-place houses, the seismic performance of prefabricated assembled houses is relatively weaker, and they may face greater safety risks during earthquakes and other natural disasters.
3. Additional Investment Required for Interior Decoration and Plumbing and Electrical Installation: Interior decoration, plumbing, and electrical installation of the houses still require additional investment from homeowners, increasing the overall construction and usage costs.