The MR468 Standing Seam Metal Roof Sandwich Panels is engineered for long-span commercial and industrial buildings. Integrating a concealed clip system and fiberglass wool blanket insulation, it forms a high-performance prefabricated metal roof system, delivering exceptional waterproofing and thermal protection for a reliable metal roofing solution.
The MR468 Standing Seam Metal Roof Sandwich Panels is the optimal choice for commercial and industrial roofing projects such as logistics warehouses and manufacturing plants. Its high vertical seam and concealed clip design ensure lifelong watertight performance for architectural metal roofing. The system core utilizes a fiberglass wool blanket as insulation, making this prefabricated metal roof panel excel in thermal insulation, acoustic absorption, and fire resistance, collectively forming a highly energy-efficient composite roofing system.
We particularly recommend this solution to clients who prioritize energy efficiency and durability: This long-span roof system combines robust metal panels with a stable fiberglass wool blanket insulation layer, providing lasting, reliable overhead protection and energy-saving value for your large-scale structures.
Material Characteristics Table for MR468 prefabricated roof system
Effective Width (mm) |
Unfolded Width (mm) |
Effective Utilization Rate |
Sheet Thickness (mm) |
Weight per Square Meter (kg/m²) |
Moment of Inertia of Section (cm⁴/m) |
Section Modulus (cm³/m) |
|
Effective width |
Width at full expansion |
Utilization |
Panel thickness |
Weight per square meter |
Sectional moment of inertia |
Section Modulus |
|
468 |
600 |
78% |
0.5 |
5.03 |
34.91 |
Wx1:21.67 |
Wx2:6.47 |
0.6 |
6.04 |
41.82 |
Wx1:25.90 |
Wx2:7.76 |
|||
0.7 |
7.04 |
48.74 |
Wx1:30.11 |
Wx2:9.04 |
|||
Table of Load without extra support and thermal performance specifics for MR468 prefabricated roof system
Sheet Thickness (mm) |
Yield Strength (MPa) |
Support Conditions |
Load Direction |
Span Value under Different Loads (mm) |
|||||
Thickness |
Yield strength |
Supporting condition |
Load direction |
0.5 kN/m² |
1.0 kN/m² |
1.5 kN/m² |
2.0 kN/m² |
2.5 kN/m² |
3.0 kN/m² |
0.5 |
345 |
Multi-span |
External force |
3701 |
2785 |
2274 |
1969 |
1761 |
1608 |
Internal force |
3196 |
2536 |
2216 |
1969 |
1761 |
1608 |
|||
0.6 |
345 |
Multi-span |
External force |
3872 |
3052 |
2492 |
2158 |
1930 |
1762 |
Internal force |
3394 |
2694 |
2353 |
2138 |
1930 |
1762 |
|||
0.7 |
345 |
Multi-span |
External force |
4023 |
3294 |
2690 |
2329 |
2083 |
1902 |
Internal force |
3571 |
2835 |
2476 |
2250 |
2083 |
1902 |
|||
Note: Strength is calculated under both positive and negative pressure conditions, whereas deflection span is only considered for positive pressures. The selected deflection-span ratio is L/150.




1. Concealed Sliding Clip System for a Penetration-Free Roof Surface
This system employs a Concealed Clip Roofing System, where all fasteners are completely hidden. This ensures an intact, penetration-free roof panel surface, delivering exceptional Watertight Metal Roof performance and enhancing the aesthetics of Architectural Metal Roofing.
2. Intelligent Sliding Structure to Actively Relieve Thermal Stress
The bracket's unique sliding design is key to a Standing Seam Metal Roofing. It allows the panels to move freely during thermal expansion and contraction, effectively releasing stress and preventing structural damage. This ensures the long-term safety and stability of Long Span Roof Systems.
3. Factory Precision Prefabrication Ensures Installation Accuracy
All Prefabricated Metal Roof Panels and connectors can be precisely pre-punched and processed in the factory. This Prefabricated Metal Roof Panel process guarantees seamless, efficient, and fast on-site installation, forming a reliable foundation for a high-quality Metal Roofing System.
4. 70mm High Seam Interlock & Sealing Defies Harsh Weather
The 70mm high Standing Seam Metal Roofing male and female ribs interlock tightly, creating robust drainage channels. Combined with pre-applied sealant at the joints, it forms a dual waterproof barrier, providing top-tier leakage protection for Commercial Metal Roofing and Industrial Roofing projects.
5. Professional Project Support System
We provide modularly transported, site-ready forming equipment and comprehensive technical support from experienced engineers. This ensures the customized requirements of large-scale Commercial Metal Roofing and Industrial Roofing projects are implemented accurately and reliably on-site
Q1: What is the greatest advantage or feature of this metal roofing system?
A1: The core advantage of this system lies in the perfect integration of its Standing Seam Metal Roofing design and the Concealed Clip Roofing System. It provides stable support for Long Span Roof Systems and achieves exceptional Watertight Metal Roof performance through 70mm high seam interlock and pre-applied sealing. This makes it an ideal choice for Commercial Metal Roofing and Industrial Roofing projects with stringent requirements for waterproofing and durability.
Q2: Is the system complicated to install, and how is the installation quality and waterproofing effect guaranteed?
A2: The installation process is efficient and reliable, thanks to the advanced Concealed Clip Roofing System and the factory prefabrication concept. All Prefabricated Metal Roof Panels and connectors are precision-manufactured in the factory, allowing for quick on-site engagement via sliding clips. This design not only achieves a penetration-free surface but also, through the male and female rib interlock of the Standing Seam Metal Roofing and the pre-set sealing strips, creates a dual barrier against extreme weather. This ensures the long-term Watertight Metal Roof performance of the entire Metal Roofing System.
Q3: What types of buildings is the system suitable for, especially regarding span requirements?
A3: This system is a classic Long Span Roof System specifically designed for buildings requiring wide, column-free spaces. It is perfectly suitable for various Commercial Metal Roofing projects (such as large shopping malls, logistics centers) and Industrial Roofing projects (like factories, warehouses). Its structural strength and design make it particularly well-suited as Architectural Metal Roofing for iconic public structures such as stadiums and airports.
Q4: Does the system offer an insulation solution, and how does it balance insulation with waterproofing?
A4: Yes, the system provides a complete integrated insulation solution. The core Prefabricated Metal Roof Panels can be factory-bonded with high-performance insulation materials (such as fiberglass wool) to form Insulated Metal Panels (IMP). This integrated Prefabricated Metal Roof Panel design achieves excellent thermal insulation performance. Simultaneously, the outer layer's Standing Seam Metal Roofing and Concealed Clip Roofing System ensure the airtightness and watertightness of the entire roof assembly, fundamentally eliminating risks of thermal bridging and water leakage.
Copyright © 2026 by Shandong glostar Panel Building Systems Co., Ltd. - Privacy Policy