DC-W820 Corrugated Roofing Sheet – Durable Metal Roofing Solution for Industrial and Commercial Projects
The DC-W820 Corrugated Roofing Sheet is a high-performance metal roofing material designed for industrial, commercial, and agricultural construction applications. Manufactured through advanced cold roll forming technology, it features a precisely engineered profile that enhances structural strength, improves drainage efficiency, and ensures long-term durability.
This product is available in both exposed fastener corrugated type and concealed fastener standing seam type, offering flexible solutions for different building systems. It can be used as a single-layer roofing panel or combined with insulation materials such as glass wool or rock wool to form a double-layer roofing system with thermal performance.
With its lightweight structure, excellent corrosion resistance, and cost efficiency, the DC-W820 Corrugated Roofing Sheet has become a preferred roofing solution in global markets.
标签: DC W820 corrugated roofing sheet
The DC-W820 Corrugated Roofing Sheet is designed to meet standard construction requirements while supporting customization for different projects.
Effective Width: 820 mm
Raw Material Width: 1000 mm
Wave Height: 25 mm or 54 mm
Wave Pitch: 205 mm or 410 mm
Thickness Range: 0.4 mm to 0.8 mm
Length: Customized typically between 4 m and 12 m
Weight: Approximately 4.0 to 6.5 kg per square meter
Corrugated Type YX25 205 820
Trapezoidal profile
Exposed fastener installation
Suitable for standard roofing projects
Standing Seam Type YX54 410 820
High rib profile
Concealed fastener installation
Suitable for high-end and long-span roofing systems
The DC-W820 Corrugated Roofing Sheet is produced using premium base materials and advanced coating technologies to ensure durability and long service life.
Hot dip galvanized steel with coating Z180 to Z275
Galvalume steel with coating AZ150 to AZ200 for enhanced corrosion resistance
PE polyester coating cost effective and widely used
SMP silicon modified polyester coating for improved weather resistance
PVDF fluorocarbon coating suitable for coastal and high UV environments
Available in a wide range of colors including blue gray red and customizable RAL color systems to match architectural requirements
标签: metal roofing panel
The optimized profile design increases rigidity and load-bearing capacity allowing the sheet to withstand wind loads snow loads and maintenance loads.
The corrugated design ensures efficient water drainage while the standing seam structure eliminates exposed fastener holes reducing leakage risk.
The combination of coated steel and protective finishes provides long-term resistance against rust oxidation and environmental exposure.
The lightweight design reduces structural load and lowers overall construction costs while maintaining strength and durability.
Depending on material and coating selection the product can last from 10 to over 20 years under normal conditions.
Suitable for roofing and wall cladding in a wide range of building types.
The manufacturing process of DC-W820 Corrugated Roofing Sheet follows strict quality control standards:
Raw material inspection
Coil feeding
Cold roll forming
Precision cutting
Surface coating inspection
Final quality check
Packaging and storage
This ensures consistent product quality accurate dimensions and reliable performance.
标签: corrugated steel sheet
The DC-W820 Corrugated Roofing Sheet is widely used in:
Industrial factories and workshops
Warehouses and logistics centers
Agricultural buildings and farms
Commercial buildings and retail spaces
Temporary structures and shelters
Carports and canopies
For projects requiring insulation it can be combined with glass wool or rock wool systems to improve thermal efficiency.
Fix screws at the wave crest not at the valley
Side overlap one wave
Longitudinal overlap not less than 200 mm
Apply sealant at all joints
Use dedicated clips and seaming machines
No exposed screws
Allow thermal expansion through sliding connections
Minimum roof slope should be 5 percent
Proper sealing at ridges gutters and edges
Avoid unnecessary drilling on panels
The DC-W820 Corrugated Roofing Sheet has been widely used across global markets and has received consistent positive feedback.
Customers in Southeast Asia appreciate its corrosion resistance in humid climates. Middle Eastern users value its heat resistance and coating durability. African markets prefer its affordability and ease of installation. European clients recognize its stable quality and modern appearance.
High repeat purchase rates demonstrate its reliability and strong market acceptance.
Standard export packaging with waterproof protection
Reinforced with steel straps
Suitable for container loading
Safe and secure transportation
Free samples available in small sizes
Custom samples supported
Fast delivery via courier services
Standard production time 7 to 15 days
Customized orders 15 to 25 days
Urgent orders can be arranged
Technical support and consultation
Installation guidance
Quality assurance
Replacement policy for defective products
T T payment
L C at sight
Flexible terms for long-term cooperation
ISO quality management system
CE certification
SGS inspection reports
Strict internal quality control
Reliable quality and stable performance
Flexible specifications and customization
Long service life and low maintenance
Easy installation and cost efficiency
Widely used in global construction projects
标签: steel roofing sheet
The DC-W820 Corrugated Roofing Sheet is a versatile and durable roofing solution that meets the needs of modern construction projects. With its strong performance, excellent weather resistance, and flexible application, it is an ideal choice for contractors, builders, and distributors seeking high-quality metal roofing materials. Whether for industrial buildings, commercial projects, or agricultural use, this product delivers long-term value and dependable performance.
The DC W820 corrugated roofing sheet is a single layer color coated profiled steel sheet formed by cold roll forming technology. It is available in two main types: exposed fastener trapezoidal corrugated sheet YX25 205 820 and concealed fastener standing seam sheet YX54 410 820.
This product does not include an insulation core and can be used as a single layer roofing sheet or combined with insulation materials such as glass wool or rock wool to form a double layer roofing system.
Base Materials:
Hot dip galvanized steel Z180 to Z275
Galvalume steel AZ150 to AZ200 with better corrosion resistance
Coating Options:
PE polyester coating economic option with 5 to 10 years warranty
SMP silicon modified polyester coating
PVDF fluorocarbon coating suitable for coastal or high UV environments with 15 to 20 years warranty
Color Options:
Ocean blue light gray red and other colors customizable according to project color charts
| Type | Effective Width | Raw Width | Wave Height | Wave Pitch | Thickness | Length |
|---|---|---|---|---|---|---|
| Corrugated Sheet YX25 205 820 | 820 mm | 1000 mm | 25 mm | 205 mm | 0.4 to 0.6 mm | 4 to 12 m limited by transport |
| Standing Seam YX54 410 820 | 820 mm | 1000 mm | 54 mm | 410 mm | 0.5 to 0.8 mm | 4 to 12 m or on site forming |
The standard corrugated sheet with 25 mm wave height and 0.5 mm thickness is suitable for purlin spacing of approximately 1.2 m. The standing seam sheet with 54 mm high ribs allows purlin spacing up to 1.5 to 1.8 m.
The recommended roof slope is not less than 5 percent. The system is capable of withstanding regional wind loads snow loads and maintenance loads. The standing seam system offers significantly better wind uplift resistance compared to exposed fastener sheets and is ideal for coastal and high wind regions.
The corrugated sheet uses one wave side overlap approximately 205 mm and longitudinal overlap not less than 200 mm with waterproof screws and sealant.
The standing seam sheet features a 360 degree locked seam without exposed fastener holes providing superior waterproof performance. For high rainfall areas standing seam systems are recommended along with proper gutters flashing and edge sealing.
The metal sheet is a non combustible material with A1 fire rating and no flaming droplets making it suitable for industrial buildings with basic fire protection requirements.
A 0.5 mm sheet weighs approximately 4.0 to 4.8 kg per square meter.
PE coating service life is around 10 years while PVDF coating combined with galvalume steel can achieve more than 20 years under normal conditions.
Fastening must be done at the wave crest never at the valley
Side overlap one wave longitudinal overlap not less than 200 mm with full sealant application
Purlins should be leveled with recommended spacing of 1.2 m
Installed using dedicated clips and seaming machines
Clips are fixed to purlins while panels are connected through sliding joints to release thermal expansion stress
No exposed screws reducing leakage risk
Ridge eaves and openings must be sealed with flashing and sealant
Roof slope should be at least 5 percent
Random cutting or drilling on panels is prohibited and all openings must be properly waterproofed
Corrugated Sheet YX25 205 820
Suitable for cost sensitive projects such as factories warehouses simple shelters and temporary buildings especially in inland regions with mild wind and rainfall conditions
Standing Seam Sheet YX54 410 820
Ideal for coastal high wind areas large span industrial buildings logistics centers and public structures requiring high waterproof performance and long service life
| Item | DC W820 Standing Seam or Corrugated | DC W840 YX25 210 840 |
|---|---|---|
| Effective Width | 820 mm | 840 mm |
| Wave Height Standing Seam | 54 mm | 25 mm |
| Installation Method | Concealed or exposed fastener | Mostly exposed fastener |
| Waterproof and Wind Resistance | Stronger in standing seam type | Standard suitable for inland |
| Material Utilization | 82 percent | 84 percent |
Wolong Industrial Park, Linqu, Weifang City, Shandong Province, China
8615854888898
hanxingganggou@163.com
Wolong Industrial Park, Linqu, Weifang City, Shandong Province, China
8618264445706
hanxingganggou@163.com
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