EverLast Stone-Coated Steel tiles
Substrate Revolution: Anti-corrosion Fortress of Metal Skeleton
1. Aluzinc steel sheet substrate
Aluminum (55%): Forms a dense aluminum oxide film (Al₂O₃) upon contact with oxygen, blocking moisture corrosion (self-healing and rust prevention)
Zinc (43.4%): Provides sacrificial anodic protection, allowing scratches to corrode the zinc layer rather than the steel.
Silicon (1.6%): Enhances coating adhesion
*Corrosion resistance = 6 times that of ordinary galvanized steel* (salt spray test > 4800 hours without red rust)
2. Anti-fingerprint back coating
The back is coated with a clear or green anti-fingerprint liquid for further corrosion protection.
Surface armor: physical barrier of high-temperature sintered colored sand
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Traditional organic paint tiles |
colored stone tiles, basalt colored sand layer |
|
Ultraviolet degradation → fading in 2-5 years |
>1300°C sintered colored sand |
|
Rainwater erosion → coating peeling |
Mohs hardness ≥7 (comparable to quartz) |
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Thermal expansion and contraction → cracking |
>30-year color retention (ASTM G154) |
Scientific Principle:
The gaps between colored sand particles create an insulating air layer (reducing substrate temperature fluctuations).
The mineral crystal structure reflects 90% of UV rays (delaying substrate aging).
Structural Mechanics: Triple Defense System
Wind-resistant
Self-locking design + wind-resistant clips (resistant to 62 m/s typhoons)
>3 times the wind resistance of traditional tiles (ASTM D3161)
Impact resistance
Colored sand layer provides energy absorption and cushioning, while steel plate provides tough support
Fire safety
Non-combustible inorganic colored sand + flame-retardant metal substrate
Meets Class A fire protection standards (GB8624)
application
High-end villas, hotel resorts, commercial complexes, residential renovations, government projects, etc.
Most of the export markets are: Europe, America, Australia, Canada, Southeast Asia, South Africa, etc.
FAQ
Q: Will the colored stones chip off?
A:No. Our stones are fused at 200°C and backed by a 10-year no-loss warranty.
Q:Is it good for hurricanes?
A: Yes! With hidden screws + interlock design, it withstands 180mph winds.
Q:Can I install over old shingles?
A:Mostly yes!
Works over asphalt/concrete roofs if:
✔️ Slope > 15°
✔️ No water damage
✖️ Max 2 layers
Q: Why better than plain metal?
A: 3 Big Wins:
• Quiet: Rain sounds like whispers .
• Cool: Reflects 90% heat.
• Tough: Stops hail dents
Q:How often to maintain?
A: Almost zero!
Just check after big storms.
Never pressure wash!
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