Color coated steel roofing sheets (PPGI — Pre-Painted Galvanized Iron) are rapidly replacing traditional clay tiles, concrete tiles, and asbestos cement sheets in residential construction worldwide. Here's why:
| Feature | Color Coated Steel | Concrete/Clay Tile | Asbestos Cement |
|---|---|---|---|
| Weight per m² | 3–7 kg | 45–70 kg | 12–18 kg |
| Lifespan | 15–30 years | 50+ years | 20–30 years |
| Wind Resistance | Excellent (interlocking) | Good | Moderate |
| Thermal Reflection | High (saves 15-25% cooling) | Moderate | Low |
| Color Options | Unlimited (RAL matching) | Limited (natural) | None |
| Installation Speed | Fast (large sheets, fewer joints) | Slow (many small pieces) | Fast |
| Cost per m² (material) | $3.50–$8.00 | $8.00–$25.00 | $2.50–$5.00 |
| Roof Structure Cost | Low (lighter = less steel needed) | High (heavy = heavier frame) | Medium |
| Health Risk | None | None | Asbestos hazard |
The classic wave pattern — economical, self-draining, and suitable for both roofs and walls. Most popular in Africa, Southeast Asia, and South America for residential roofing.
Pressed to mimic traditional clay or concrete tiles — ideal for upscale residential projects wanting the look of tile with the benefits of steel.
Strong, modern profile suitable for both residential and commercial. Popular in Southern Africa (IBR profile) and the Middle East.
Premium concealed-fastener system — no exposed screws. Popular for modern architectural homes in Europe, North America, and Australia.
| Parameter | Standard Option | Premium Option |
|---|---|---|
| Substrate | Hot-dip galvanized (Z275) | Galvalume / Zincalume (AZ150) |
| Base Metal Thickness | 0.25 — 0.80 mm | Custom gauge |
| Top Coating | SMP (Silicone Modified Polyester) | PVDF / Kynar 500 (HDP) |
| Back Coating | Epoxy grey (5-7μm) | Polyester white (10-15μm) |
| Color Range | Standard RAL colors (30+ in stock) | Custom RAL matching (MOQ: 25 tons) |
| Warranty | 10 years color, 15 years structural | 20 years color, 30 years structural |
| Standards | EN 10169, ASTM A755, JIS G3312 | Custom specification |
| Color Name | RAL Code | Popular In | Heat Reflection |
|---|---|---|---|
| Tile Red | RAL 8004 | Africa, South America, SE Asia | Medium |
| Brick Red | RAL 3011 | Middle East, Mediterranean | Medium |
| Slate Grey | RAL 7015 | Europe, North America | Low |
| Forest Green | RAL 6005 | Africa, Caribbean | Medium |
| Ocean Blue | RAL 5015 | Coastal / island regions | Medium-High |
| Bright White | RAL 9016 | Middle East, hot climates | Very High |
| Charcoal Black | RAL 7021 | Modern architecture | Very Low |
| Terracotta | RAL 2010 | Latin America | Medium |
Tip: For hot climates (Middle East, Africa, South Asia), choose white or light colors with high solar reflectance (SRI ≥ 78) to reduce indoor temperature by 5-8°C and air conditioning cost by 15-25%.
| Thickness | Profile | Coating | Color | Price (USD/Ton) | Price (USD/m²) |
|---|---|---|---|---|---|
| 0.30 mm | Corrugated (762mm) | SMP | Standard RAL | $780–$850 | $3.30–$3.60 |
| 0.40 mm | Corrugated (900mm) | SMP | Standard RAL | $750–$820 | $4.10–$4.50 |
| 0.50 mm | Trapezoidal (840mm) | SMP | Standard RAL | $740–$810 | $5.10–$5.60 |
| 0.50 mm | Tile Profile (1100mm) | SMP | Standard RAL | $780–$860 | $5.50–$6.10 |
| 0.60 mm | IBR (686mm) | SMP | Standard RAL | $730–$800 | $6.10–$6.70 |
FOB Tianjin China. Custom colors (non-stock RAL) +$30–50/ton. AZ150 substrate upgrade +$30–40/ton. PVDF coating upgrade +$100–120/ton. MOQ: 25 tons per color/spec.
Sino East Steel is a leading roofing sheet manufacturer and supplier in China. We ship to residential, commercial, and government projects across 50+ countries. Free color samples and technical datasheets available on request.