Colour Coated Profile Roofing Sheets

Metal sheets with a protective coat of paint are called color-coated profile roofing sheets, and they are mainly used for wall cladding and roofing. Depending on the base metal and coating applied, they are frequently referred to as PPGI (Pre-Painted Galvanized Iron) or PPGL (Pre-Painted Galvalume) sheets. These sheets are a popular option in commercial, residential, and industrial construction because they combine strength, corrosion resistance, aesthetic appeal, and ease of installation.

• Pre-painted galvanized steel sheet (zinc-coated steel) is known as PPGI.

• PPGL stands for pre-painted galvalume steel sheet (coated steel with an aluminum-zinc alloy).

Types of Coating

PPGI Sheets (Zinc-coated steel)

• Thickness of zinc: 40–275 g/m²

• Offers good corrosion resistance, especially when painted.

PPGL Sheets (Aluminium-Zinc coated steel)

• Typically 55% Al + 43.4% Zn + 1.6% Si

• Provides superior corrosion resistance, especially in coastal and industrial areas.

Profile Types

• Custom Profiles

Depending on manufacturer and project needs.

• Corrugated Sheets

Traditional wavy pattern, strong and lightweight.

• Trapezoidal Sheets

Flat with trapezoid ridges, ideal for industrial roofs.

• Ribbed Sheets

Narrower ribs, often used in modern commercial buildings.

Advantages

• Aesthetic Appeal

Available in multiple colours and finishes.

• Customizable

Can be cut, bent, and shaped to fit designs.

• Durability

Lifespan of 15–25 years depending on quality.

• Energy Efficiency

Light colours reflect heat, reducing cooling costs.

• Environmentally Friendly

Recyclable steel and minimal construction waste.

• Low Maintenance

A painted surface reduces cleaning and upkeep needs.

• Lightweight

Easier to transport and install than concrete or clay tiles.

• Corrosion Resistance

Galvanized or Galvalume coating plus paint protects from rust.