Walk any building materials market in Lagos, Accra or Nairobi and you will see the same two products competing for every roof: stone coated metal tiles and PPGI long-span sheets. Both start as aluzinc-coated steel coil; the difference is what happens after. Here is the honest comparison distributors give their own customers.
Side-by-Side Comparison
| Parameter | Stone Coated Tile | PPGI Long-Span Sheet |
|---|---|---|
| Base material | Aluzinc steel + acrylic + stone chips | Galvanized/aluzinc steel + paint (PE/SMP/HDP) |
| Typical thickness | 0.40-0.45 mm | 0.30-0.55 mm |
| Installed cost per m² | 2-3x higher | Base |
| Lifespan | 30-50 years | 10-25 years (paint system dependent) |
| Rain noise | Low (stone layer damps) | Higher without insulation |
| Look | Classic tile profile | Modern industrial/residential |
| Installation | Slower, batten grid, more skilled labor | Fast, long single spans, fewer laps |
Which Wins Where
Stone coated dominates premium residential estates where owners pay for the tile look and 50-year story. PPGI long-span wins commercial, industrial, institutional and mass housing on speed and cost — which is most of the volume. That is why successful distributors stock both instead of picking a side.
The Coil Behind Both Products
Stone coated tiles are pressed from bare aluzinc/galvalume coil (usually AZ70-AZ100, 0.40-0.45 mm) before coating; long-span sheets are roll-formed from PPGI coil or PPGI roofing sheet stock. We supply both substrates from the same mill, FOB Tianjin, MOQ 25 tons — see the galvalume spec range and metal roofing sheet options.
FAQ
Is stone coated roofing really maintenance-free?
Largely, but chip loss on walkways and hips is normal over decades. Quality of the aluzinc base coil determines whether the steel underneath survives that long.
What PPGI paint system should compete against stone coated?
HDP or PVDF systems with 15-20 year film warranties close most of the lifespan gap at a fraction of the price. See PE vs SMP vs HDP vs PVDF.
Can you supply coil for stone coated tile production?
Yes — AZ70-AZ100 aluzinc in 0.40-0.45 mm is a regular export spec for tile plants in Nigeria, Ghana and Kenya. Request the datasheet.
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Ready to fix your spec? Send thickness, coating, quantity and destination port to our sales team — factory-direct FOB Tianjin quote within 24 hours.