The DC-W840 Corrugated Roofing Sheet is a widely used roofing and cladding material designed for modern industrial, commercial, and agricultural construction projects. Engineered with advanced roll-forming technology, this roofing sheet provides outstanding structural strength, excellent weather resistance, and long-term durability.
The W840 profile is specifically designed to achieve optimal load distribution and efficient water drainage, making it highly suitable for large-span steel structures such as warehouses, factories, workshops, and logistics centers.
With its combination of lightweight structure, high strength, and cost efficiency, the DC-W840 Corrugated Roofing Sheet has become one of the most preferred roofing solutions in global construction markets.
标签: corrugated roofing sheet
| Item | Specification |
|---|---|
| Model | DC-W840 |
| Effective Width | 840 mm |
| Raw Material Width | 1000 mm |
| Thickness | 0.3 mm – 0.8 mm |
| Material | Galvanized Steel / Galvalume Steel / Color Coated Steel |
| Zinc Coating | 40g – 275g/m² |
| Coating Type | PE / PVDF / SMP |
| Wave Height | Customized based on profile |
| Length | Customized (According to project requirement) |
| Color Options | RAL Color System |
| Surface Treatment | Anti-corrosion coating |
| Application | Roofing / Wall Cladding |
标签: steel roofing sheet
The W840 wave design enhances load-bearing capacity, allowing the sheet to withstand heavy wind, snow, and rain loads.
The corrugated profile ensures efficient water drainage and minimizes leakage risks.
With galvanized or galvalume coating, the sheet provides long-term protection against rust and environmental damage.
Compared to traditional roofing materials, the DC-W840 sheet is lightweight, reducing structural load and installation costs.
With proper coating, the service life can reach 15–30 years depending on environmental conditions.
Available in multiple colors and finishes, suitable for modern architectural designs.
标签: metal roofing panel
Zinc-coated surface
Cost-effective
Suitable for general environments
Aluminum-zinc alloy coating
Better corrosion resistance
Longer lifespan
Decorative appearance
UV resistant coating
Ideal for commercial buildings
Matte finish
Glossy finish
Embossed patterns
标签: roofing materials
The manufacturing process of DC-W840 Corrugated Roofing Sheet includes:
Raw Material Inspection
Coil Feeding
Roll Forming
Cutting to Length
Surface Treatment
Quality Inspection
Packaging
Advanced automated production lines ensure precise dimensions and consistent quality across all products.
The DC-W840 Corrugated Roofing Sheet is widely used in:
Factories
Workshops
Warehouses
Shopping centers
Exhibition halls
Office buildings
Farms
Poultry houses
Storage sheds
Construction site buildings
Portable shelters
标签: industrial roofing
Ensure roof structure is stable
Measure and plan layout
Fix purlins
Place roofing sheets
Align overlaps
Secure with screws
Seal joints
Use waterproof screws
Ensure proper overlap
Install ridge and flashing
Customers from different regions have provided positive feedback:
Southeast Asia clients appreciate its corrosion resistance in humid climates
Middle East customers highlight heat resistance performance
African buyers value cost-effectiveness and durability
European users prefer its aesthetic finish and quality
Repeat orders and long-term cooperation demonstrate product reliability and market competitiveness.
Standard export packing
Waterproof plastic film
Steel straps reinforcement
Container shipping (20GP / 40HQ)
Bulk shipment available
Safe loading procedures
Free samples available (small size)
Custom samples supported
Courier shipping (DHL / FedEx / UPS)
Production time: 7–15 days
Custom orders: 15–25 days
Fast delivery for urgent projects
Technical support
Installation guidance
Quality assurance
Replacement policy for defective products
T/T (30% deposit, 70% balance)
L/C at sight
Flexible negotiation for long-term partners
ISO Quality Management System
CE Certification
SGS Testing Reports
Factory Audit Available
Source factory with competitive pricing
Advanced production equipment
Strict quality control
Rich export experience
Professional service team
The DC-W840 Corrugated Roofing Sheet is a reliable, durable, and cost-effective roofing solution designed to meet the demands of modern construction projects worldwide. With its excellent performance, flexible customization options, and strong market reputation, it is an ideal choice for contractors, builders, and distributors.
The DC-W840 corrugated roofing sheet is a single-layer color-coated steel roofing panel, widely used as a lightweight roofing and cladding solution. It is roll-formed into a trapezoidal corrugated profile and is mainly applied in factory roofs, warehouse coverings, and simple roofing structures.
This roofing sheet features lightweight construction, efficient water drainage, and fast installation, making it a cost-effective choice for various industrial and commercial applications.
Effective Coverage Width: 840 mm
Wave Height: 25 mm
Wave Pitch: 210 mm
Raw Material Width: 1000 mm
Common Thickness: 0.4 mm, 0.426 mm, 0.476 mm, 0.5 mm, 0.6 mm
Length: Customized according to project requirements (standard transport length ≤ 12 m)
Base Material: Hot-dip galvanized steel sheet, galvalume steel sheet
Surface Coating:
PE (Polyester) coating
SMP (Silicon Modified Polyester) coating
PVDF (Fluorocarbon) coating
Coating Weight:
Galvanized: Z120–Z275
Galvalume: AZ100–AZ150
Color: Customizable based on project color charts (common colors include ocean blue, light gray, and red)
The trapezoidal wave design improves panel rigidity, allowing direct installation on steel purlins and enabling the sheet to withstand standard wind loads, snow loads, and maintenance loads.
The optimized wave height ensures smooth water flow, making it suitable for sloped roofing systems.
Side overlap: one wave overlap
End overlap: along water flow direction
With sealant and waterproof screws, leakage risks can be effectively minimized.
As a metal single-layer panel, it is a non-combustible material with Class A fire rating and no flaming droplets, suitable for roofing systems requiring basic fire protection.
The coating provides excellent UV resistance and anti-aging performance, while the metallic coating protects the substrate from corrosion.
For coastal or highly corrosive environments, higher coating weight and PVDF coating are recommended.
The sheet is lightweight, reducing structural load and steel consumption, which helps lower overall construction costs.
Recommended roof slope: not less than 5% to ensure proper drainage
Fixing method: self-drilling waterproof screws installed at the wave crest (not in the valley)
Side overlap: one wave, with sealant applied at joints
End overlap: minimum 200 mm along slope direction
Key areas such as ridge, eaves, gutters, ventilation openings, and parapet walls should be sealed with flashing, closures, and edge trims
In high wind regions, concealed fixing brackets are recommended to enhance wind resistance
The DC-W840 corrugated roofing sheet is suitable for:
Steel structure factories
Warehouses and logistics centers
Agricultural markets
Carports and canopies
Temporary buildings
Livestock and poultry houses
For thermal insulation requirements, it can be combined with insulation materials such as glass wool or rock wool to form a double-layer roofing system.
995 Green Hill St. Greenfield, IN 46140
1-800-1234-567
mail@demolink.org
995 Green Hill St. Greenfield, IN 46140
1-800-1234-567
mail@demolink.org
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