PPGI PPGL Steel Coils With Different Thickness And Colours For Roofing Material Solution
Roofing Steel Solution: How to Choose the Right Material (PPGI, PPGL, GI)
Choosing the right roofing material is critical for long-term durability, cost efficiency, and maintenance performance. Different environments require different coated steel solutions.
This guide helps you select the most suitable roofing steel among PPGI, PPGL, and Galvanized Steel (GI) based on your project conditions, budget, and expected lifespan.
| Product name | Colour Coated Steel Coil |
| Base material | GI /GL coils |
| Thickness | 0.12 – 1.50 mm |
| Width | 600 – 1250 mm |
| Zinc coating | Z30 – Z275 g/m² |
| Paint type | PE / SMP / PVDF |
| Top Coating Thickness | 10 – 25 μm |
| Back Coating Thickness | 5 – 10 μm |
| Colour | RAL Color / Custom |
| Surface finish | Glossy / Matte / Textured |
| Standard | ASTM A653 / EN 10346 / JIS G3312 |
| Feature | PPGL | PPGI |
| Base material | Al-Zn(55% Aluminum) | Zinc |
| Corrosion Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ |
| Heat Resistance | Excellent | Moderate |
| Lifespan | 20~25years | 10~15years |
| Best Use | Harsh environments | General use |
- PE: Cost-effective, general purpose
- SMP: Improved UV resistance
- HDP: High durability for outdoor use
- PVDF: Maximum weather resistance (recommended for coastal projects)
- For roofing, SMP or PVDF is highly recommended
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Coastal / High Humidity Areas
Recommended: PPGL Steel Coil
- Excellent corrosion resistance (3–6* better than GI)
- Resistant to salt spray and humidity
- Long lifespan (20–25 years with PVDF coating)
Best choice for seaside buildings and tropical climates
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Industrial / Polluted Areas
Recommended: PPGL or SMP-coated PPGI
- Strong resistance to chemicals and pollutants
- Better durability than standard GI
- Suitable for factories and warehouses
-
Normal Climate / Budget Projects
Recommended: PPGI Steel Coil
- Good performance with competitive price
- Wide color options for roofing design
- Suitable for residential buildings
PPGL stands for Prepainted Galvalume Steel Coil, which is a color-coated steel product based on aluminum-zinc alloy coated steel.
PPGL uses an aluminum-zinc coating, providing better corrosion resistance and longer lifespan, while PPGI uses zinc coating and is more economical.
Yes, PPGL is highly recommended for coastal and high humidity environments due to its superior anti-corrosion properties.
Depending on coating type:
- SMP: 10–15 years
- HDP: 15–20 years
- PVDF: 20–25 years
Yes, PPGL is widely used in roofing due to its durability, heat resistance, and color stability.
Yes, we support:
- Custom thickness & width
- Color matching (RAL)
- Coating thickness
- Special surface finishes
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