India’s Complete Roofing Sheet Solutions – Decking, PPGI, GI, Colour Coated & More
From JSW, Tata Bluescope, Jindal, AMNS, and other leading brands – we deliver durable and cost-effective roofing materials.
Understanding Modern Roofing Sheets
Discover the materials, benefits, and applications that make metal and polycarbonate sheets the premier choice for construction projects across India.
Roofing sheets are essential components in modern construction, providing a protective covering for buildings against environmental elements. Their importance stems from their durability, versatility, and cost-effectiveness compared to conventional roofing materials like clay tiles or asbestos. These sheets offer significant benefits, including faster installation, lower maintenance requirements, and superior longevity, making them an ideal choice for a wide range of structures.
The materials used are diverse, each offering unique properties. Galvanized Iron (GI) and Galvanized Plain (GP) sheets provide excellent corrosion resistance. Pre-Painted Galvanized Iron (PPGI) and Pre-Painted Galvalume (PPGL) add an aesthetic dimension with a factory-applied layer of paint over a highly corrosion-resistant Galvalume (an alloy of zinc and aluminum) base. For projects requiring superior thermal and acoustic insulation, Puff Panels (with a core of Polyurethane Foam) are the standard. Polycarbonate sheets are chosen for applications where light transmission is necessary, such as in skylights and greenhouses. These materials are manufactured to specific coating standards, such as AZ70 versus the thicker AZ150 for galvalume sheets, or GI with options like spangle, zero-spangle, galvanized, and pre-painted finishes, ensuring the right product for every environment.
The applications for these roofing solutions are vast, covering industrial sheds, residential buildings, high-rise composite structures, bridges, and mezzanine floors. They are also extensively used for smaller-scale projects like parking sheds, farmhouses, and commercial complexes, demonstrating their adaptability to any project scale.
Our Complete Range of Roofing Solutions
Explore our comprehensive selection of high-quality roofing and cladding materials, designed to meet the diverse needs of industrial, commercial, and residential projects.
Decking Sheets
Decking sheets are structural steel components used to create composite floor systems, often seen in high-rise buildings, mezzanine floors, and bridges. These profiled sheets act as a permanent formwork for a reinforced concrete slab, bonding with the concrete to create a robust and efficient floor deck. Their design allows for faster construction schedules and reduces the overall weight of the structure. They are available in various thicknesses, typically from 0.8mm to 1.6mm, with profiles engineered for optimal load-bearing capacity and bonding with RCC slabs.
PPGI & PPGL Sheets
Pre-Painted Galvanized Iron (PPGI) and Pre-Painted Galvalume (PPGL) sheets are steel sheets that have a color coating applied in a continuous process. PPGL sheets are coated with an aluminum-zinc alloy, offering superior corrosion resistance compared to the zinc coating of PPGI, making them ideal for harsher environments. Both sheet types come in various profiles, such as trapezoidal or corrugated, and a wide spectrum of colors. The factory-applied paint finish ensures uniformity, durability, and a high-quality aesthetic for roofing and cladding applications on industrial and commercial buildings.
GI / GP Sheets
Galvanized Iron (GI) and Galvanized Plain (GP) sheets are steel sheets coated with a layer of zinc to prevent rusting. This zinc coating provides sacrificial protection to the underlying steel, ensuring a longer service life even when scratched. GI sheets are commonly used for roofing, cladding, and other applications where corrosion resistance is a primary concern. They are available in various zinc coating thicknesses (measured in GSM - grams per square meter) and gauges. The surface finish can feature a visible crystalline pattern known as 'spangle' or a more uniform 'zero-spangle' finish.
Colour Coated Sheets
Colour coated roofing sheets are produced by applying a layer of paint over a metallic-coated steel base, typically galvanized or galvalume steel. These sheets combine the structural strength of steel with enhanced corrosion resistance and aesthetic appeal. Available in various profiles, including trapezoidal and tile profiles, they are widely used for residential and commercial roofing where appearance is important. The multi-layer coating system includes a primer and a topcoat, which provides color, texture, and protection against UV radiation and weathering, ensuring long-lasting visual appeal.
Puff Panels & Insulated Roofing
Puff panels, also known as insulated sandwich panels, consist of an insulating core of Polyurethane Foam (PUF) or Polyisocyanurate (PIR) bonded between two metal sheets. These panels provide excellent thermal insulation, helping to maintain consistent indoor temperatures and reduce energy consumption. They are lightweight yet strong, making them suitable for roofs and walls in temperature-controlled environments like cold storage facilities, clean rooms, and food processing units. The panels feature tongue-and-groove joints for an airtight and watertight seal, enhancing their insulating properties and structural integrity.
Polycarbonate Sheets
Polycarbonate sheets are a type of thermoplastic polymer known for their high impact strength, light weight, and optical clarity. These transparent or translucent sheets are an excellent material for roofing applications where natural light is desired, such as in skylights, canopies, and greenhouses. They are virtually unbreakable and offer inherent UV protection. Available in solid and multiwall configurations, polycarbonate sheets provide good thermal insulation while being easy to handle and install. Their durability and resistance to weathering make them a long-lasting solution for natural lighting.
Roofing Accessories
Roofing accessories are crucial components that complete a roofing system, ensuring its structural stability, weather-tightness, and longevity. This category includes Z & C purlins, which are cold-formed steel sections used to support the roof sheets between the primary structural frames. Self-drilling screws are specialized fasteners designed to attach roofing sheets to purlins without pre-drilling. Turbo ventilators are wind-powered devices that provide continuous air circulation, removing heat and moisture from the building. These accessories are manufactured from durable materials like galvanized steel to withstand environmental stresses.
Why Choose Acier Roofing Sheets?
We deliver more than just roofing materials. We provide engineered solutions that guarantee strength, durability, and performance for every project.
Strength & Load-Bearing Capacity
Our decking sheets are meticulously engineered to bond with concrete, creating composite slabs for RCC floors that offer exceptional structural integrity and load-bearing strength.
Weather & Corrosion Resistance
GI, PPGI, and PPGL sheets feature advanced zinc and AZ coatings (up to AZ150) that provide a robust barrier against corrosion, ideal for coastal and industrial environments.
Thermal & Acoustic Insulation
PUF/PIR insulated puff panels significantly reduce heat transfer, leading to energy savings. Polycarbonate sheets also offer insulating properties while allowing natural light.
Fire Resistance
Our certified insulated panels are manufactured with fire-retardant materials like PIR, providing enhanced safety and compliance for industrial and commercial buildings.
Aesthetic Options
With a wide range of colours, profiles, and textures, our colour coated roofing sheets provide architects and builders the flexibility to achieve their desired design vision.
Pan-India Supply Network
We ensure timely delivery across major hubs including Pune, Mumbai, Navi Mumbai, Thane, Panvel, Chennai, and service projects nationwide through our robust logistics network.
Technical Specifications
Find detailed technical data for our products to help you make an informed decision for your project requirements.
Decking Sheet
| Property | Specification |
|---|---|
| Thickness | 0.8mm, 1.0mm, 1.2mm, 1.6mm |
| Effective Width | 960mm / 990mm / 1010mm |
| Load Capacity | Varies by thickness, profile, and slab depth (Refer to load charts) |
| Material | High-tensile Galvanized Steel |
PPGI / PPGL Sheets
| Property | Specification |
|---|---|
| Coating Type | PPGI (Pre-Painted Galvanized), PPGL (Pre-Painted Galvalume) |
| Metallic Coating | GI: Z90-Z275 | PPGL: AZ70, AZ150 |
| Paint System | Regular Modified Polyester (RMP), Silicone Modified Polyester (SMP) |
| Brands | JSW, Tata Bluescope, Jindal, AMNS |
Puff Panels
| Property | Specification |
|---|---|
| Panel Thickness | 30mm, 40mm, 50mm, 60mm, 80mm, 100mm, 120mm, 150mm |
| Insulation Core | PUF (Polyurethane Foam), PIR (Polyisocyanurate) |
| Thermal Conductivity (K-value) | ~0.022 W/m.K |
Applications Across Sectors
Our roofing solutions are trusted by diverse industries for their reliability, performance, and adaptability to specific project needs.
Industrial Roofing Sheets
For large-span structures like warehouses, factories, and steel plants, durability and rapid installation are key. Our GI, PPGI, and PPGL roofing sheets provide excellent coverage and protection against harsh industrial environments. Insulated puff panels are the ideal choice for manufacturing units that require temperature control, ensuring energy efficiency and a controlled production environment.
Residential Roofing
Modern residential projects like farmhouses, villas, and terrace coverings demand both aesthetics and performance. Our colour coated sheets, available in various profiles including tile designs, offer a beautiful and long-lasting alternative to traditional roofing. They are lightweight, easy to install, and provide superior weather protection for homes and car sheds.
Commercial Roofing
Commercial complexes, malls, and office buildings benefit from roofing systems that are both functional and visually appealing. Our range of colour coated sheets and puff panels meets these needs perfectly. Polycarbonate sheets are frequently used in commercial structures to create bright, naturally lit atriums and walkways, reducing the need for artificial lighting and enhancing the building's architectural design.
Special Projects
For specialized engineering projects, our products offer unmatched performance. Decking sheets are fundamental in the construction of bridges and multi-level parking structures, providing a strong and reliable base for concrete slabs. Their use in creating mezzanine floors within existing industrial sheds maximizes vertical space efficiently and cost-effectively, demonstrating their versatility in complex structural applications.
Gallery of Completed Projects
See our roofing sheets in action. A showcase of our successful installations across various sectors, highlighting quality and precision.
JSW PPGI roofing – Pune project
Tata Bluescope Durashine – Mumbai warehouse
Decking sheet for slab – Chennai site
Frequently Asked Questions
Get answers to common questions about roofing materials, specifications, and best practices.
Which is better – PPGI or PPGL?
PPGL (Pre-Painted Galvalume) is generally considered superior to PPGI (Pre-Painted Galvanized Iron) in terms of corrosion resistance. PPGL's coating is a mix of aluminum and zinc, which provides better barrier protection, especially in coastal or highly polluted areas. While PPGI is a cost-effective and durable option for many applications, PPGL offers a longer lifespan and better protection against rust, making it the preferred choice for projects where longevity is a critical factor.
What is the ideal roofing sheet thickness for strength?
The ideal thickness depends on the application, purlin spacing, and expected load (like wind or snow). For standard industrial roofing, 0.50mm is a common and robust choice. For cladding or smaller structures, 0.45mm might be sufficient. For areas with very high wind speeds or where wider purlin spacing is used, a thicker gauge like 0.60mm may be necessary to prevent deflection and ensure structural integrity.
What is AZ70 vs AZ150 difference?
'AZ' refers to the Aluminum-Zinc alloy coating on Galvalume sheets. The number indicates the coating mass in grams per square meter (total for both sides). AZ150 has 150 g/m² of coating, while AZ70 has 70 g/m². AZ150 provides more than double the amount of protective coating, offering significantly better corrosion resistance and a longer service life. AZ150 is the standard for high-quality roofing in demanding environments, whereas AZ70 might be used for less critical applications or in drier climates.
What is the lifespan of Puff insulated panels?
When properly installed and maintained, high-quality PUF/PIR insulated panels can have a lifespan of 25 to 40 years. The longevity depends on factors like the quality of the metal facings, the density of the insulation core, and the environmental conditions. The outer coating of the metal sheets plays a significant role in protecting the panel from weathering and UV degradation.
Serving All of India
Our strategic presence in key industrial zones ensures that we can efficiently supply roofing sheets and accessories to projects anywhere in the country.
Acier Steel is a premier supplier of roofing sheets in Pune, catering to the booming industrial and automotive sectors. Our network extends throughout the Mumbai Metropolitan Region, providing fast delivery of roofing sheets in Mumbai, Navi Mumbai, Thane, and Panvel. In the southern region, we are a leading supplier of roofing sheets in Chennai, supporting its diverse manufacturing base. Our national logistics capabilities allow for reliable, India-wide supply for large-scale projects.
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