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Colour Coated Sheets

Colour Coated Roofing Sheets

Colour-coated sheets are metal roofing or cladding sheets that have been painted and coated with protective layers to improve strength, durability, and appearance.

They are widely used in:

  • Industrial roofing
  • Warehouses
  • PEB buildings
  • Residential homes
  • Commercial buildings
  • Factories & sheds

The 6-Layer Coating Process — What Makes Our Sheets Superior

Unlike basic painted sheets available in the market, our colour coated roofing sheets go through a scientifically engineered 6-layer manufacturing process:

  1. Steel Base Coil — High-tensile, cold-rolled steel coil as the foundation
  2. Zinc / AZ Alloy Coating — Applied through hot-dip process for base-level corrosion protection
  3. Chemical Pre-Treatment — Chromate or chrome-free passivation for enhanced coating adhesion
  4. Epoxy Primer Layer — For superior paint bonding and additional corrosion barrier
  5. Top Colour Coat — Applied using polyester, SMP, or PVDF paint systems
  6. Back Coat — Protective coat on the inner face to prevent condensation damage

This multi-layer system ensures the sheet performs in the toughest Indian weather conditions — from the scorching heat of Rajasthan to the heavy rainfall of Kerala to the salty coastal air of Gujarat.

How Colour-Coated Sheets Are Made

  1. Steel coil is cleaned
  2. Zinc or Aluminum-Zinc coating is applied (for rust resistance)
  3. Chemical pretreatment
  4. Primer coating
  5. Top colour coating (polyester, PVDF, SMP)
  6. Oven curing

 

Roll forming into shapes:

  • Corrugated
  • Trapezoidal
  • Ribbed sheet

Where Are Colour Coated Sheets Used?

Ambalica Projects supplies roofing sheets to a wide range of industries and project types:

Industrial Factories & Sheds

High-Rib PPGL sheets for long-span coverage

Pre-Engineered Buildings (PEB)

Our roofing integrates seamlessly with PEB steel structures

Warehouses & Logistics Parks

Wide-span trapezoidal sheets with thermal benefits

Cold Storage Facilities

Insulated panel-compatible outer sheets

Schools, Hospitals & Institutional Buildings

Cool roof sheets for energy savings

Farmhouses & Residential Rooftops

Aesthetic PPGI sheets in multiple colours

Types of Paint Coatings — Latest Technology

  1. hoosing the right paint coating is just as important as choosing the right base metal. Ambalica Projects offers three advanced coating options:

    Polyester (PE) Coating

    The most affordable option. Suitable for low-to-medium exposure environments such as residential rooftops and temporary sheds. Offers good colour retention for 8–12 years.

    SMP — Silicone Modified Polyester

    An upgraded coating technology that adds silicone molecules to the polyester base. This delivers better UV resistance, less chalking, and improved colour stability over 15+ years. Ideal for commercial buildings and mid-level industrial applications.

    PVDF — Polyvinylidene Fluoride (Premium Grade)

    The gold standard in colour coated roofing technology. PVDF coatings are used in high-end industrial projects, chemical plants, food processing units, and pharmaceutical facilities. They offer:

    • 25+ years of colour retention
    • Maximum resistance to acid rain, pollution, and UV fading
    • Zero chalking or peeling in extreme conditions
    • LEED and green building compliance

Why Choose Ambalica Projects as Your Colour Coated Sheet Supplier?

There are hundreds of roofing sheet suppliers in India. Here is what makes Ambalica Projects stand apart:

✔ Direct Manufacturer Supply — We source directly from premium steel mills, cutting out middlemen and offering better pricing.

✔ BIS and ISO-Compliant Products — All sheets conform to IS 14246 standards for pre-painted flat products.

✔ Custom Lengths Up to 12 Metres — Reducing joints on your roof means fewer leakage points and faster installation.

✔ Pan-India Delivery — We supply to Haryana, Punjab, Delhi, Himachal Pradesh, Rajasthan, Uttar Pradesh, and across India.

✔ Technical Support — Our team helps you select the right grade, thickness, profile, and colour for your specific project requirements.

✔ Competitive Pricing — Transparent pricing with no hidden charges. Bulk order discounts available.

industerial PEB Shed manufacter India

PPGI vs PPGL — Which Sheet Is Right for You?

Many buyers are confused between PPGI and PPGL sheets. Here is a simple breakdown:

FeaturePPGI (Pre-Painted Galvanized Iron)PPGL (Pre-Painted Galvalume)
Base CoatingZinc (GI)55% Aluminium + 45% Zinc (AZ)
Corrosion ResistanceGoodExcellent (2–4x better)
Heat ReflectanceModerateHigh
Lifespan15–20 years20–40 years
Best ForResidential & light commercialIndustrial & coastal buildings
CostEconomicalSlightly higher, better ROI

Recommendation: For heavy industrial use, warehouses, or coastal areas — go with PPGL sheets. For residential sheds, farmhouses, and light commercial projects — PPGI sheets are a cost-effective option.

Ambalica Projects supplies both variants sourced from leading Indian steel brand.

Roofing Sheet Accessories — Complete Solution Under One Roof

Unlike many suppliers who only provide sheets, Ambalica Projects offers a complete roofing system, including:

  • Ridge Cap Sheets (plain and ventilated)
  • Eave Gutters and Box Gutters
  • Corner Flashing and Side Flashings
  • J-Trim and Barge Boards
  • Downspouts and Rainwater Pipes
  • Self-Drilling Roofing Screws with EPDM Washers
  • Foam Fillers (Ridge and Eave Type)
  • Butyl Sealant Tape for leak-proof joints

This means you get everything needed for a complete, watertight, and professional roofing installation — from a single trusted supplier.