OSB Sandwich Panel: PU vs Rock Wool for Low-Temperature Warehouse Enclosure
When designing enclosure structures for low-temperature warehouses, many project contractors struggle to choose between PU OSB sandwich panels and rock wool OSB sandwich panels. Both types of OSB sandwich panels adopt OSB boards as surface layers, but different core materials bring obvious differences in practical performance.
PU OSB sandwich panel uses polyurethane foam as the core material. Its biggest advantage lies in superior thermal insulation performance. Low thermal conductivity effectively reduces cold loss inside the warehouse, lowering long-term refrigeration operating costs. The panel is lightweight, convenient for transportation and rapid installation. However, its fire rating is limited. It fits well with medium-low temperature cold storage that prioritizes energy saving without ultra-high fire protection requirements.
Rock wool OSB sandwich panel takes rock wool as the core. It boasts outstanding fire resistance and high-temperature stability, meeting strict fire codes for industrial buildings. Nevertheless, the thermal insulation capacity is weaker than the PU OSB sandwich panel. Higher heat transfer coefficient means greater cooling consumption. It is widely adopted for projects with mandatory fire safety standards.
Performance Comparison Table
表格
| Index | PU OSB Sandwich Panel | Rock Wool OSB Sandwich Panel |
|---|---|---|
| Thermal Insulation | Excellent | Good |
| Fire Performance | General | Outstanding |
| Unit Weight | Light | Relatively Heavy |
| Installation Speed | Fast | Normal |
| Long-Term Energy Efficiency | High | Medium |
Scene Selection Advice
For conventional low-temperature food cold storage focusing on energy conservation, PU OSB sandwich panels are a cost-effective solution. If the warehouse involves flammable goods storage or needs to pass strict fire acceptance, rock wool OSB sandwich panels are the preferred option.
As a local source manufacturer in Foshan, SAMZOON supplies customized OSB sandwich panels for cold storage and cleanroom projects. We offer free sample delivery, rush production arrangement, professional panel selection guidance and construction technical support, with abundant completed engineering cases in South China.
