Prefabricated Light Steel Villa

The prefabricated light steel villa is a low-rise residential building system with light steel keels cold-rolled from hot-dip galvanized aluminum steel strips as its core material, offering advantages in materials, structure, and performance.

Material Characteristics and Building System
The core material of light steel villas is galvalume steel sheet, formed by solidifying a quaternary crystal composed of 55% aluminum, 43.4% zinc, and 1.6% silicon at 600℃. This creates a dense anti-corrosion barrier, significantly enhancing corrosion resistance. The building system includes four major systems: foundation, wall, floor, and roof. It adopts a factory-prefabricated component assembly model on-site, with a self-weight only 1/5 to 1/8 of traditional brick-concrete structures, greatly reducing foundation load requirements. The exterior walls are filled with glass fiber wool for efficient thermal insulation, complemented by breathable membranes to regulate humidity and prevent condensation buildup, enhancing living comfort.

Significant Performance Advantages

1. Strong Earthquake and Wind Resistance: The main structure features flexible connections of light steel keels, achieving a seismic performance of magnitude 9 and wind resistance up to level 12, suitable for earthquake-prone areas and coastal regions with strong winds.
2. High Construction Efficiency: The construction period is reduced by 50% compared to traditional buildings. For example, a 300-square-meter light steel villa can be completed within two months, unaffected by rain or snow, enabling year-round continuous operations.
3. Low Material Wastage: Standardized prefabricated components minimize on-site cutting, reducing material wastage to 3%, far lower than the 10%-15% of traditional buildings.
4. Low Overall Cost: The comprehensive cost is 15%-20% lower than that of brick-concrete structures, primarily due to shortened construction periods, reduced labor costs, and material recycling value.
5. Outstanding Environmental Performance: The wall insulation is comparable to that of a KTV booth (sound insulation above 50 decibels), and all materials can be recycled, reducing construction waste.

Application Scenarios and Policy Support
Light steel villas are widely used in rural housing, tourist resorts, and overseas projects, particularly suitable for scenarios with high demands for construction periods and environmental protection. At the policy level, 28 provinces across the country have introduced subsidy policies for prefabricated buildings. For example, Sichuan Province will provide a subsidy of 50 yuan per square meter in 2026 for projects using 50% green building materials, with a maximum subsidy of 50,000 yuan when combined with local subsidies, further reducing construction costs.

Innovations in Exterior Wall and Roof Systems
Exterior wall decorations can choose materials such as metal embossed panels and cement fiber siding panels, balancing aesthetics and durability. The roof system supports the integration of photovoltaic tiles, improving energy efficiency by 40% and achieving deep integration of buildings with renewable energy sources.