High-Quality Color Steel Roofing Sheets from China Factory - Durable & Aesthetic Solutions by Trusted Suppliers
Material Composition & Structure
Our color steel sheets consist of multiple protective layers:
| Base Metal | High-quality galvanized steel (GI) or aluminum-zinc alloy coated steel (GL) |
| Chemical Treatment Layer | Chromate conversion coating for enhanced adhesion |
| Primer | Epoxy-based undercoat for corrosion protection |
| Top Coat | PVDF (70%+) or PE/Polyester finish for color retention |
| Back Coat | Protective paint on the underside (optional) |
Standard Specifications
| Thickness | 0.3mm-1.2mm (customizable) |
| Width | 600mm-1250mm (standard), up to 1500mm (special order) |
| Length | Custom-cut up to 12 meters |
| Surface Profile | Over 20 options including trapezoidal, corrugated, and standing seam |
| Color Options | 200+ RAL colors with matte/gloss finishes |
Key Advantages
Superior Durability
25-30 year service life with PVDF coating
Salt spray resistance >1000 hours (ASTM B117)
Withstands wind speeds up to 220km/h
Weather Resistance
Excellent UV resistance (ΔE<5 after 10 years)
Temperature range: -50°C to +120°C
100% waterproof when properly installed
Economic Benefits
40% lighter than traditional roofing materials
Quick installation saves labor costs
Low maintenance requirements
Aesthetic Flexibility
Color stability guaranteed for 10+ years
Modern architectural appearance
Custom patterns/textures available
Applications
- Industrial buildings (factories, warehouses)
- Commercial complexes (malls, airports)
- Residential roofing & siding
- Agricultural structures (barns, greenhouses)
- Temporary buildings & modular construction
Installation & Maintenance
- Compatible with screw-down or concealed clip systems
- Recommended slope: ≥5° for proper drainage
- Cleaning requires only periodic water rinsing
- Annual inspection recommended for sealant integrity
Quality Assurance
- ISO 9001, ASTM A755, EN 10169 certified
- Color difference control: ΔE≤1.0 (standard)
- Coating thickness: 20-25μm minimum
- 10-year warranty on coating performance
Why Choose Our Color Steel Sheets?
Our products undergo 27 quality control checkpoints from raw material to finished goods. With advanced German coating lines and Japanese steel base materials, we guarantee:
Precise color matching for project consistency
Optimal formability for complex architectural designs
Technical support for installation best practices
Conclusion
Whether for functional industrial roofing or stylish architectural cladding, our color steel sheets provide the perfect balance of performance and design flexibility. Backed by comprehensive warranties and global project experience, they represent the smart choice for durable, cost-effective building envelopes.
Company Advantages
Honglu Group, mainly focuses on the manufacturing of high-quality steel structure and the R&D of prefabricated technology.
Steel structure manufacturer
Honglu, a steel structure top manufacturer with daily capacity 15,000+Tons, Effectively Shorten Construction Period And Saving Construction Costs For You.
efficient production
10 Production Sites, 400+ Production Lines, Annual Production Capacity Of Steel Structure 5,000,000+ Tons, Slabs 30,000,000㎡.
High quality service
Experiencing 21 Years, Serving 100,000+ Customers,Take The Lead In Passing ISO9001, ISO14001, OHSAS18001,Certification of European& American Standards.
Rich product chain
Rich Product Chains, One-Stop Service For Steel Structure Projects.
Frequently Asked Questions
Before cooperation, you may have the following questions.
Q: Are you original manufacturer or trading company?
We are original steel structure top manufacturer with daily capacity 15000 Tons. In order to know more of us professionalism and get the best competitive price, please contact the Sales Team to visit our factory.
Q: Is your price competitive compared with other companies?
Our objectives are to give the best price with same quality and the best quality with the same price. We will do everything we can to reduce your cost and guarantee you get the best product that you paid for.
Q: Can you send engineers or whole team to install my project?
We will send detailed installation drawings for free. Or send engineers as installation director or a team upon request.
Q: Do you accept container loading inspection?
Yes, you are welcome to send an inspector, not only for the container loading, but any time during the production time.
Q: What’s your work flow?
Send us Steel Structure Drawing for quotation Sign contract Drawings Deepening and Task Decomposition Production planning and task decomposition Product outbound and shipping Project sealing in archives.
Q: Can you provide architectural and structural design drawings?
Yes, we have the professional design engineers to help clients providing the architectural, structural and detailed drawings for free.