Integrated PV roof panels that combine solar power generation, roofing and insulation in one system. Designed for steel structure factories, warehouses, and logistics buildings in Southeast Asia and the Middle East, they help reduce energy costs and improve roof performance.
Selling Points：
3-in-1 system: PV module + roof panel + insulation, fewer components and faster installation
Lower structural load compared with concrete roofs and separate PV racks
Fewer roof penetrations, reduced water leakage risk and easier long-term maintenance
| Parameter | Specification |
|---|---|
| Panel Type | Photovoltaic Insulated Roof Panel |
| Panel Structure | PV module + top metal skin + insulation core + bottom metal skin |
| Top Skin Material | Pre-painted galvanized steel / Aluminum, t = 0.5mm |
| Bottom Skin Material | Pre-painted galvanized steel / Aluminum, t = 0.42mm |
| Core Material | PU / PIR / Rock wool |
| Core Density | PU/PIR: 40kg/m³ | Rock wool: 120kg/m³ |
| Panel Thickness | 0.5/ 0.6 / 0.7 mm (without PV glass thickness) |
| Effective Cover Width | 1000mm |
| Panel Length | Up to 11.8 m (according to project design) |
| Surface Coating | PE / SMP / PVDF, standard RAL colour according to customized |
| Thermal Conductivity | PU/PIR: λ ≈ 0.025 W/m·K |
| Fire Performance | Up to A class (according to core and local standard) |
| PV Module Type | Monocrystalline / BIPV module |
| PV Power per Module | 300–550 W (project-specific, depending on module type and layout) |
| Module Efficiency | ≥ 50% |
| System Voltage | 220V |
| Operating Temperature | -40°C ~ +85°C (PV module rating) |
| Fixing Method | Hidden fixing with self-drilling screws and side-lap joint |
| Recommended Roof Slope | ≥ 5° (e.g. 3–5°) |
| Recommended Purlin Spacing | 0.8 m (to be confirmed by structural calculation) |
| Applications | Steel factories, warehouses, logistics centers, cold rooms roof, etc. |
Key Benefits of SOMEI Photovoltaic Roof Panels
Three Functions in One Roof System
One integrated panel provides PV power generation, weatherproof roofing, and thermal insulation. This reduces the number of separate components (metal sheets, insulation, PV racks) and simplifies design, procurement, and installation.
Designed for Hot and Humid Climates
The insulated core and reflective metal skins significantly reduce heat transfer into the building. For steel structure warehouses and factories in Southeast Asia and the Middle East, this helps lower indoor temperature and cooling energy consumption.
Lower Structural Load and Faster Installation
PV roof panels are installed directly on steel purlins like conventional sandwich roof panels. Compared with concrete roofs plus solar racks, the total system weight is much lower and the construction schedule is shorter.
Reliable Waterproofing and Fewer Leakage Points
PV modules are integrated with the roofing profile and sealed during production. Hidden-fix fasteners and engineered side-lap joints minimize roof penetrations and reduce the risk of water leakage over the long term.
Flexible Design for New-Build and Renovation Projects
Panel length, thickness, core material and PV configuration can be customized according to project design, wind load and local codes. The system is suitable for both new steel structure roofs and renovation of old metal roofs.
One-Stop Supply and Technical Support
Somei works with qualified panel producers to provide complete PV roof panel packages, including matching flashings and accessories, as well as basic layout suggestions and installation guidance for overseas contractors.
Shenzhen Somei Building Material Co., Ltd. provides one-stop photovoltaic and insulated roof & wall panel solutions for steel structure factories, warehouses, and cold rooms in hot-climate markets.