Zhengzhou Container House Insulation

The insulation of container houses in Zhengzhou is mainly achieved through the use of special sandwich panel materials, optimized structural design, and the selection of high-standard construction techniques.

1. Application of Insulation Materials

Container houses in Zhengzhou commonly use rock wool, glass wool, or polyurethane sandwich panels as wall and roofing materials. These materials have low thermal conductivity, effectively blocking heat transfer. For example, the thermal conductivity of polyurethane sandwich panels can be as low as 0.022W/(m·K), maintaining stable performance within a temperature range of -50℃ to 150℃, suitable for extreme climatic conditions. Rock wool sandwich panels also feature Class A fire resistance, with their fibrous structure trapping a large amount of air to form an insulation layer, maintaining over 85% insulation efficiency even in humid environments.

2. Optimization of Structural Design

1. Double-Wall System: Some high-end products adopt a composite structure with inner and outer steel plates filled with insulation material in between, further blocking thermal bridges through an air layer. For example, the standard container products produced by Zhengzhou Tianyuan Color Steel have a wall thickness of 100mm, with the insulation layer accounting for over 70%.
2. Sealing Treatment: Windows and doors use thermal-break aluminum alloy frames paired with double-glazed units, with weather-resistant silicone sealant applied at joints, achieving an overall airtightness of Grade 8 as specified by the national standard GB/T 7106-2008.
3. Roof Drainage Slope: A drainage slope of 3%-5% is designed to prevent water accumulation, avoiding performance degradation of the insulation layer due to moisture penetration.

3. Upgrade of Construction Techniques

1. Hot-Dip Galvanized Steel Frame: Q345B steel is used and treated with hot-dip galvanization, with a zinc layer thickness of ≥80μm, providing a service life of up to 50 years in corrosive environments, ensuring long-term support for the insulation effect through structural stability.
2. Modular Prefabrication: Integrated pouring of the insulation layer and structural layer is completed in the factory, eliminating on-site construction errors. For example, the whole-house decoration mode of Xingxiu Space Cultural Tourism Technology controls the error of the insulation system within ±2mm.
3. Seismic and Wind-Resistant Design: Node connections are optimized through finite element analysis to meet seismic resistance of Grade 8 and wind resistance of Grade 12, preventing insulation failure due to structural deformation under extreme weather conditions.

4. Typical Application Scenarios

In a construction site project in Erqi District, Zhengzhou, the temperature difference between indoors and outdoors in a rock wool-insulated container house can reach 15℃, maintaining an indoor temperature of over 5℃ without auxiliary heating in -10℃ environments. In a livestock farm project in Xinzheng, custom double-layer insulated containers increased livestock survival rates by 12% and reduced energy costs by 30%.