| Thickness (mm) | 0.12-0.60 mm |
| Length (mm) | 900-1000 mm |
| AZ Coating (GSM) | AZ150 (aluminum-zinc alloy coating mass of 150 g/m²) AZ200 (aluminum-zinc alloy coating mass of 200 g/m²) |
| Reference Standard | IS 15961:2012 |
| Yield Strength | 230-550 MPa (depending on grade) |
| Tensile Strength | 340-700 MPa |
| Operating Temperature | Up to approximately 315°C (600°F) for continuous exposure |
| Profile Types | Coil and Corrugated |
| Surface Finish | Regular |
Rhino Roofs manufactures premium galvalum sheet using advanced hot-dip aluminum-zinc (55% aluminium and 43.4% Zinc) coating technology to ensure superior corrosion resistance and long-lasting performance. Our gl sheet is designed to meet modern construction standards and made in compliance with IS 15961:2012 and available with AZ150/AZ200 coating, 0.12-0.60 mm thickness and 900-1000 mm length. Our galvalume sheet provides exceptional structural stability, weather resistance, and low maintenance, making it the ideal roofing solution for industrial, commercial, agricultural, and residential applications.
A Galvalume sheet is manufactured with multiple protective layers that work together to maximize durability and corrosion resistance. An optional guard film prevents scratches during handling, while the top coat provides colour and weather protection. The primer improves paint adhesion, and the chemical coating enhances bonding and corrosion resistance. The Al + Zn coating forms the primary barrier against rust, protecting the cold rolled (CR) steel core that delivers structural strength. On the reverse side, another Al + Zn coating, chemical coating, primer, and back coat protect the underside from moisture, oxidation, and environmental damage, ensuring long-lasting performance and a longer service life in demanding roofing and cladding applications.
| Feature | Galvalume | GI |
| Coating | Al-Zn | Zinc |
| Corrosion Resistance | Better | Moderate |
| Heat Reflection | High | Medium |
| Life | Longer | Shorter |
| Maintenance | Less Frequent | More Frequent |
Galvalume and galvanized (GI) sheets differ mainly in their protective coatings and performance. Galvalume sheets are coated with an aluminum-zinc (Al-Zn) alloy, offering superior corrosion resistance, higher heat reflection, longer service life, and lower maintenance requirements. In contrast, galvanized (GI) sheets are coated only with zinc, providing moderate corrosion protection, lower heat reflectivity, a shorter lifespan, and generally requiring more frequent maintenance. Learn more comparison between galvalume sheet and galvanized sheet.
| Environment Condition | Expected Life |
| Rural | 30-40 Years |
| Urban | 25-35 Years |
| Coastal | 20-25 Years |
| Industrial | 15-25 Years |
| Mountain / Hilly Areas | 30-40 Years |
The service life of galvalume sheets depends on the surrounding environment. In rural, mountain or hilly areas, they can last 30-40 years, while in urban environments they typically last 25-35 years. Due to higher exposure to moisture, salt, and pollutants, the lifespan reduces to 20-25 years in coastal regions and 15-25 years in industrial areas. Proper installation and regular maintenance can further extend their durability.
Our galvalume sheets are available in both aluminium zinc and with colour coated variants. Whether you choose aluzinc or colour coated options, Rhino Roofs' GL sheet combine modern aesthetics with industry-grade strength, making them an ideal galvalume sheets for roofing.
Alu-Zinc galvalum roofing Sheet is manufactured for applications where long-term durability is essential. The advanced aluminium-zinc alloy coating offers excellent strength and durability. It is also low maintenance requirements that make them a practical roofing solution for demanding environments.
GL sheet have become a preferred roofing material because they combine strength, durability, and long-lasting protection in one solution. The aluminium-zinc coating allows the galvalume sheets to perform efficiently in different climatic conditions. Their lightweight design also makes transportation, installation, and maintenance simpler, helping reduce both project time and overall costs.
The strength and versatility of galvalum steel sheet make them suitable for a wide range of roofing and cladding applications. From large industrial facilities to modern residential developments, these gl sheets provide reliable protection while maintaining their performance in challenging environments.
Factories, warehouses and manufacturing plants require roofing systems resisting demanding conditions. Galvalume steel sheet help industrial sheds remain protected for years with minimal maintenance.
Commercial spaces benefit from the durability and clean finish of galvalume sheets for roofing. Their long service life and low maintenance requirements make them a practical choice for modern commercial developments.
Galvalume sheets are increasingly used for homes and home extensions. Lightweight and weather resistance properties allow for faster installation and help keep residential buildings protected through out the years.
Rhino Roofs galvalume sheets provide dependable protection against corrosion, environmental wear, high wind and high rain. That making gl sheets as the durable roofing solution for agricultural applications.
Galvalume roofing sheets are well suited for mountainous and hilly regions where roofs are exposed to frequent rain, strong winds, and changing temperatures.
Galvalume sheets perform exceptionally well in high rainfall areas due to their superior corrosion resistance and protective Alu-Zinc coating.
With over five decades (from 1972) of experience in manufacturing roofing sheet, Rhino Roofs has built a reputation that combine quality, durability, and consistent performance. Every galvalume sheet is manufactured using premium raw materials and advanced production technology, supported by rigorous quality control at every stage of the manufacturing process. The result is a roofing solution that not only performs reliably in challenging conditions but also delivers lasting value across a wide range of construction projects.
Every Galvalume sheet undergoes rigorous quality checks during manufacturing to ensure reliable performance, dimensional accuracy, and long-term durability. From raw material inspection to the final coating evaluation, each production stage is monitored to meet industry quality standards.
The aluzinc coating is measured to verify that it meets the required AZ coating specification (AZ150 or AZ200). Uniform coating thickness helps improve corrosion resistance and extends the service life.
Each sheet is checked for accurate base metal thickness using precision measuring equipment. This ensures consistency in strength, load-bearing capacity, and overall product performance.
The coating is tested to ensure strong bonding with the steel substrate. Good adhesion prevents peeling, flaking, or cracking during fabrication, transportation, and installation.
Samples are bent under controlled conditions to evaluate the flexibility of the coated steel. This test confirms that the coating remains intact during roll forming and installation.
GL sheets are evaluated for rust resistance by standard lab tests which help verify the protective capabilities of the al-zn coating in different environmental conditions.
Every sheet is visually inspected for defects such as scratches, coating inconsistencies, dents, or surface imperfections to ensure a clean and uniform finish before dispatch.
The sheet’s width, length, profile depth, and overall dimensions are inspected to ensure they meet manufacturing specifications and customer requirements.
A Galvalume Sheet has an aluminium-zinc alloy coating, while a galvanised sheet has a zinc coating. Galvalume Sheets generally offer better corrosion resistance, heat reflectivity, and a longer service life.
Yes. Galvalume Sheets are suitable for both roofing and wall cladding applications, making them a versatile choice for industrial, commercial, and residential buildings.
Yes. Their high strength and durability make Galvalume Sheets a suitable roofing base for properly designed solar panel mounting systems.
The right choice depends on factors such as the building type, environmental conditions, required thickness, profile, and finish. Consulting an experienced manufacturer like Rhino Roofs helps ensure the best fit for your application.
Yes. galvalume is generally better than GI for roofing applications because its aluminium-zinc coating provides superior corrosion resistance, better heat reflectivity, and a longer service life. It also requires less maintenance, making it a preferred choice for long-term roofing projects.
Galvalume roofing can last 30–50 years or more with proper installation and maintenance. Its aluminium-zinc coating provides excellent corrosion resistance, while the colour coating helps protect against UV exposure, weathering, and fading over time.