Types of Metal Roofing Sheets

Metal roofing sheets are one of the most durable and versatile roofing materials in construction. They are widely used in residential, commercial, and industrial projects. Knowing the different types of metal roofing sheets helps homeowners, builders, and contractors choose the right option for their needs.


Classification of Metal Roofing Sheets

Metal roofing sheets are available in different types depending on material and surface design.

Type of Metal Roofing SheetFeaturesCommon Use
Corrugated Metal SheetsWavy pattern, strong load resistanceWarehouses, sheds, barns
Standing Seam SheetsVertical seam design, modern lookResidential houses, commercial buildings
Galvanized Steel SheetsCoated with zinc for rust protectionOutdoor roofing, industrial facilities
Aluminum Roofing SheetsLightweight, corrosion resistantCoastal areas, homes, workshops
Copper Roofing SheetsLong lifespan, aesthetic appearanceVillas, churches, decorative roofs
Stone-Coated SheetsCoated with stone chips, stylishModern houses, luxury projects

Thickness of Metal Roofing Sheets

The thickness of roofing sheets varies depending on strength requirements.

Thickness (mm)Gauge (approx.)Application
0.25 – 0.35 mm30 – 28 gaugeTemporary structures, small sheds
0.40 – 0.50 mm26 – 24 gaugeResidential houses
0.60 – 0.80 mm22 – 21 gaugeCommercial and industrial roofing
1.00 – 1.20 mm20 – 18 gaugeHeavy-duty buildings, warehouses

Common Alloys and Materials

Different alloys provide unique benefits to roofing sheets.

Alloy / MaterialPropertiesSuitable Use
Aluminum 3003Anti-rust, lightweightCoastal and humid areas
Aluminum 5052High strength, anti-corrosionIndustrial buildings
Galvanized SteelStrong, affordableFarms, storage houses
CopperPremium, aestheticDecorative roofs

Profile Types and Styles

ProfileRib HeightCoverage WidthAppearance
Corrugated25-35mm600-900mmTraditional, wavy
Standing Seam25-75mm300-600mmModern, clean
R-Panel38mm900-1200mmIndustrial
Tile Profile40-50mm300-400mmTraditional look
Shingle Style10-20mm300-400mmIndividual shingles

Surface Finishes and Coatings

Finish TypeCharacteristicsDurability
Mill FinishNatural metal lookRequires painting
PaintedVarious colors20-30 years
PVDF CoatedSuperior weather resistance30-40 years
AnodizedMetallic appearance25-35 years
Stone ChippedTextured finish25-35 years

Performance Comparison

MaterialCorrosion ResistanceCost per m²Maintenance
Galvanized SteelGood (with coating)$Moderate
AluminumExcellent$$Low
CopperSuperior$$$$Very Low
Stainless SteelExceptional$$$Low
ZincSelf-healing$$$Very Low

Packaging of Metal Roofing Sheets

Metal roofing sheets are packed carefully to ensure safe transport.

  • Bundled with steel straps
  • Covered with waterproof plastic film
  • Palletized for container shipping
  • Custom packaging available for export orders

Advantages of Using Metal Roofing Sheets

  • Long lifespan (20–50 years depending on type)
  • Fire resistant and weatherproof
  • Low maintenance
  • Lightweight yet strong
  • Multiple designs and finishes

Applications of Metal Roofing Sheets

Metal roofing sheets are used across many sectors.

  • Residential houses
  • Warehouses and workshops
  • Agricultural barns and sheds
  • Commercial malls and offices
  • Schools and hospitals
  • Decorative roofing for villas and resorts

FAQ – Types of Metal Roofing Sheets

Q1: Which type of metal roofing is best for homes?
Standing seam and stone-coated sheets are best for modern houses.

Q2: How long do metal roofing sheets last?
They usually last 30–50 years depending on material and coating.

Q3: Are aluminum roofing sheets better than steel?
Aluminum is lighter and more corrosion resistant, while steel is stronger and more affordable.

Q4: What is the standard size of roofing sheets?
Common sizes are 8 ft, 10 ft, and 12 ft in length, with widths of 3–4 ft.

Q: Which metal roof is most cost-effective?
A: Galvalume steel offers best balance of cost and durability

Q: How long do metal roofs last?
A: 40-70 years depending on material and maintenance

Q: Are metal roofs noisy in rain?
A: No, when properly installed with solid decking

Q: Can metal roofs be installed over existing shingles?
A: Yes, in most cases (check local codes)

Q: Do metal roofs attract lightning?
A: No, they are no more likely to be struck than other materials


Conclusion

Choosing the right types of metal roofing sheets depends on budget, climate, and project requirements. Whether you need lightweight aluminum for a coastal home, galvanized steel for a warehouse, or stone-coated sheets for a luxury house, there are many options available.