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MR468 Standing Seam Metal Prefabricated Roof System
The MR468 Standing Seam Metal Prefabricated Roof System consists of composite panels, which aremade of roll-forming metal sheet (galvanized steel sheet, Super Galum, and col-or-coated steel sheet) and thermal insulation materials, back sheets, and otheraccessories. The system is suitable for roofs with a span of over 20m.
- Overview
- Technical Specifications
- Applicable Scenarios
- FAQ
- Recommended Products
Product details
The MR468 Metal Prefabricated Panel System is a premium, high-performance roofing solution engineered specifically for large-scale landmark buildings and modern industrial facilities. Designed for structures with spans exceeding 20 meters, this system perfectly integrates high-strength metal outer panels, premium insulation core materials, base panels, and specialized sliding structural connection nodes.
Whether you are building a Pre-Engineered Building a heavy industrial plant, or a transportation hub, the MR468 system delivers exceptional structural strength, superior drainage, and lifelong durability.
Performance Features
1. Hidden mounting brackets, no screw penetration on the surface
2.The bracket features a sliding structure, which allows a slightmovement caused by thermal expansion and contraction of themetal panel after engagement, thereby preventing structuraldamage caused by stress buildup that cannot be released.
3.Roof panels, fasteners, and other accessories are pre-punchedfor accurate alignment and neat finishing.
4.The panel features vertical ridges on one side and corresponding grooveson the other for engagement. Ridges are 70mm tall, which gives it a gooddrainage ability and our adhesive equipment can provide pre-appliedsealing adhesive for joints to prevent leakage under any harsh weatherconditions.
5.Experienced engineers working with equipment that is safely transport-ed in crates to guarantee reliable on-site installation.
Illustration for the joint
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| Daylighting Strips | Lapping Method | Cable Ends |
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| Cutters | Ridge | Roof Openings |
Technical Specifications
Material Characteristics Table for MR468 Standing Seam Metal Prefabricated Roof System.
|
Effective width (mm) |
Width at full expansion (mm) |
Utilization |
Panel thickness (mm) |
Weight per square meter (kg/m2) |
Sectional moment of inertia (cm4/m) |
Section Modulus (cm3/m) |
|
| W×1 | W×2 | ||||||
| 468 | 600 | 78% | 0.5 | 5.03 | 34.91 | 21.67 | 6.47 |
| 0.6 | 6.04 | 41.82 | 25.90 | 7.76 | |||
| 0.7 | 7.04 | 48.74 | 30.11 | 9.04 | |||
Table of Load without extra support and thermal performance specifics for MR468 metal prefabricated roof system.
|
Thickness (mm) |
Yield strength (N/mm2) |
Supporting conditions | Load direction |
Load(KN/m2) /rafter spacing(mm) |
|||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | ||||
| 0.5 | 345 | Multi-span | external force | 3701 | 2785 | 2274 | 1969 | 1761 | 1608 |
| Internal force | 3196 | 2536 | 2216 | 1969 | 1761 | 1608 | |||
| 0.6 | External force | 3872 | 3052 | 2492 | 2158 | 1930 | 1762 | ||
| Internal force | 3394 | 2694 | 2353 | 2138 | 1930 | 1762 | |||
| 0.7 | external force | 4023 | 3294 | 2690 | 2329 | 2083 | 1902 | ||
| Internal force | 3571 | 2835 | 2476 | 2250 | 2083 | 1902 | |||
Applicable Scenarios
Due to its robust mechanical properties, the MR468 system is highly recommended for:
- Transportation Hubs: Airport terminals, railway station waiting halls.
- Sports & Cultural Venues: Stadiums, exhibition centers, grandstand roofs.
- Heavy Industry: Aircraft hangars, large-span manufacturing plants, shipyards.
- Commercial Warehousing: Large logistics centers, cold storage roofs.
FAQ
Q1: What is the minimum roof slope/pitch required for the MR468 system?
A: Thanks to its 70mm high ribs and the 360-degree double-lock standing seam design, the MR468 system provides exceptional rapid drainage. It can be safely installed on low-slope roofs with a pitch as low as 3 degrees (approx. 5%), making it perfect for flat-looking, large-span architectural designs.
Q2: How does the concealed sliding clip prevent roof damage?
A: Metal roofs naturally expand in summer and contract in winter. Traditional fixed screws restrict this movement, causing panels to warp or tear around the screw holes. The MR468 Metal Prefabricated Roof System uses a hidden "sliding clip" that allows the entire metal sheet to glide smoothly longitudinally. This releases thermal stress and ensures the roof remains flat and perfectly intact for decades.
Q3: Can the MR468 roof panels withstand hurricane or typhoon-level winds?
A: Yes. The MR468 Metal Prefabricated Roof System is used for extreme weather. Because it uses a zero-penetration installation and the seams are mechanically locked 360 degrees around the brackets, the entire roof functions as a unified, tightly clamped shield. It offers industry-leading wind uplift resistance, passing stringent severe-weather tests.
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Looking for a reliable metal roofing system for your next big project? Our equipment is container-shipped globally, and we provide professional on-site pressing solutions for large projects.
