Solar PV mounting frame panels are composite sandwich panel systems engineered for rooftop, ground-mount, and carport solar installations, delivering high strength-to-weight performance under sustained wind loads, snow accumulation, and prolonged UV exposure. The outer skins use anodized AL 6005-T5 aluminum at 0.4-0.7mm thickness or hot-dip galvanized Q235B steel, with tensile strength of 260 MPa for aluminum and 470-630 MPa for steel.
The rigid polyurethane (PUR/PU) foam core delivers thermal insulation with conductivity of 0.022-0.028 W/(m·K), while PET foam at 100-130 kg/m³ offers heat resistance up to 150°C for solar thermal applications. Mineral wool cores are available for projects requiring fire-rated divisions, achieving non-combustible A-class performance for commercial rooftop installations and building-integrated photovoltaics.
Standard panel thickness is 20mm with effective widths of 430mm and lengths from 1m to 12m, customizable for project requirements. The ribbed interlocking system allows solar modules to be fixed with special clips instead of drilling, protecting the panel integrity and lowering installation costs on large-scale utility projects while providing rail-less mounting compatibility.
These mounting frame panels serve residential rooftops, commercial flat roofs, utility-scale ground mounts, solar carports, and agricultural solar greenhouses. They meet AS/NZS 1170, Eurocode 9, and IBC 2021 structural standards, withstanding wind loads up to 60 m/s and snow loads of 1.4-2.0 kN/m², with PVDF coatings rated for 15-20 years of weather resistance.
Your Trusted Manufacturer for Solar PV Mounting Frame Panel
RaxPanel is a direct manufacturer of composite sandwich panels based in Hebei, China, with over 15 years of continuous production experience. Our in-house R&D, design, and production capabilities deliver consistent bonding strength, dimensional accuracy, and structural integrity for solar developers, EPC contractors, and mounting system suppliers operating worldwide.
With a daily production capacity exceeding 1,700 m² and exports to more than 50 countries and regions, RaxPanel combines scale with strict quality control to meet renewable energy construction standards. Every panel undergoes verified vacuum lamination and infusion to support reliable solar mounting performance over a 25+ year service life.
- AL 6005-T5 aluminum or galvanized Q235B steel skins at 0.4-0.7mm thickness.
- PUR foam core with thermal conductivity of 0.022-0.028 W/(m·K) for insulation.
- Ribbed interlocking system enabling rail-less clip mounting without drilling.
- Wind load resistance of 60 m/s and snow load capacity of 1.4-2.0 kN/m².
| Parameter | Value |
|---|---|
| Skin Material | AL 6005-T5 Aluminum / Galvanized Q235B Steel |
| Skin Thickness | 0.4-0.7 mm |
| Aluminum Tensile Strength | ≥ 260 MPa (Rm) / ≥ 240 MPa (Rp0.2) |
| Steel Tensile Strength | 470-630 MPa / Yield ≥ 355 MPa |
| Core Material | PUR/PU Foam / PET Foam / Mineral Wool |
| Core Thermal Conductivity | 0.022-0.028 W/(m·K) (PUR) |
| PET Foam Max Service Temp | 150°C |
| Effective Width | 430 mm |
| Panel Length | 1-12 m (customizable) |
| Total Thickness | 20 mm (standard) |
| Zinc Coating Thickness | 65-85 μm (HDG per ISO 1461) |
| Anodizing Thickness | ≥ 12 μm |
| Wind Load Capacity | Up to 60 m/s (216 km/h) |
| Snow Load Capacity | 1.4-2.0 kN/m² |
| Tilt Angle Range | 0°-60° (adjustable) |
| Surface Coating | PE / HDP / PVDF (15-20 year weathering) |
| Service Life | 25+ Years |
| Applications | Rooftop, ground-mount, carports, BIPV |
Solar PV Mounting Frame Panel Buying Guide & FAQ
Selecting the right solar PV mounting frame panel requires understanding skin materials, core insulation, wind and snow load capacity, and corrosion protection. This guide answers the most common questions from solar developers, EPC contractors, and mounting system suppliers evaluating composite sandwich panels for residential, commercial, and utility-scale photovoltaic installations.
1. What is the difference between aluminum and galvanized steel skins?
AL 6005-T5 aluminum at 0.4-0.7mm offers tensile strength of 260 MPa with 12μm+ anodizing for rooftop weight savings and corrosion resistance in humid environments. Hot-dip galvanized Q235B steel delivers tensile strength of 470-630 MPa with 65-85μm zinc layers per ISO 1461, suited for heavy-duty ground mounts and carports requiring maximum load-bearing capacity in high-wind and heavy-snow zones.
2. What core materials suit different solar applications?
Rigid polyurethane (PUR) foam delivers thermal conductivity of 0.022-0.028 W/(m·K) for insulated rooftop systems. PET foam at 100-130 kg/m³ withstands service temperatures up to 150°C for solar thermal applications. Mineral wool cores provide non-combustible A-class fire performance for commercial buildings requiring fire-rated divisions, while PP honeycomb offers maximum weight reduction for residential pitched roofs.
3. How is the rail-less clip mounting system installed?
The ribbed interlocking system allows solar modules to be fixed with special clips that engage the panel ribs, eliminating traditional aluminum rails and clamps. This reduces material and labor costs by up to 30%, prevents roof penetrations from drilling, and allows panels to be secured without being limited by module size, simplifying installation on large-scale utility projects.
4. What wind and snow loads must solar mounting panels withstand?
Solar mounting panels are engineered to withstand wind loads up to 60 m/s (216 km/h) and snow loads of 1.4-2.0 kN/m² depending on configuration and tilt angle. Engineers must calculate site-specific loads using ASCE 7, AS/NZS 1170, Eurocode 1, or IBC 2021 standards to determine rail thickness, foundation depth, and tilt angle, with reinforced double-pillar structures specified for typhoon-prone regions.
5. Which surface coatings resist UV and coastal corrosion?
PVDF fluorocarbon coatings offer the best color stability and weather resistance, lasting 15-20 years against fading and chalking. HDP high-durability polyester provides 10-15 years of protection at lower cost, while standard PE polyester lasts 7-10 years. For coastal and high-ammonia environments, ZAM alloy coatings withstand 1500 hours of salt spray testing, far exceeding galvanized steel performance in C5 marine classifications.