Stone Coated Metal Roof Tile-Milan Tile | Durable, Elegant

Why Milan-style stone-coated roofing keeps popping up on job sites (and in my inbox)

I’ve been walking roofs and specifications for years, and one profile keeps showing up in tenders and site photos: Stone Coated Metal Roof Tile-Milan Tile. To be honest, the first time I saw it I assumed it was another lightweight imitation. Actually, it’s the opposite—proper Galvalume steel under basalt stone chips, pressed in a crisp Milan profile that handles wind, hail, and salt air better than many heavier systems.

Quick spec snapshot (real-world use may vary)

How it’s made (the short, honest version)

Substrate is AZ150 Galvalume steel (typical in this class), roll-formed then press-shaped to the Milan profile. Basecoat: acrylic resin. Granules: natural basalt stone chips graded for UV stability. Overglaze: clear acrylic to lock the chips. Curing happens in a controlled oven; then tiles are shear-checked, color-checked, and randomly sampled for salt-spray exposure and adhesion.

• Corrosion: ISO 9227 salt spray ≈ 1,000 h with no base-steel red rust in lab conditions.
• Impact: UL 2218 potential Class 4 when installed per guide specs.
• Fire: ASTM E108 typically Class A on approved decks.
• Wind: ASTM E1592 system tests often meet design pressures for 110–140 mph zones (check project calc).
• Service life: many customers report 30–50 years; coatings are the real hero here.

Where it shines

Re-roofing lightweight structures, coastal homes where concrete tiles rust fasteners and stress rafters, alpine chalets that see freeze–thaw, resorts wanting a “European tile” look without the dead load. Minimum slope ~12° is the norm; underlayment and flashing details matter (a lot), especially around hips and valleys.

Advantages I keep hearing on site: quieter in rain than bare metal thanks to stone chips; less breakage in transit compared with clay; quick dry-in for crews; color holds surprisingly well in UV-heavy regions.

Vendor landscape (shortlist view)

Customization and supply

• Thickness: 0.40–1.00 mm, depending on wind zone and budget.
• Colors/finishes: natural stone chip blends; custom palettes for resorts and civic projects.
• Accessories: ridge, hip, barge, valley, breathable underlayment, screws with EPDM.
• Origin: No.B2305, Times Ark Building, Guangan Street, Shijiazhuang, China.

Two quick site notes from my notebook

- Coastal villa row, SE Asia: crew liked the interlock; owner said the rain sound “muted, not tinny.” Salt-mist check after one monsoon season: chips intact, no creep at cuts (good touch-up).

- Mountain lodge retrofit: snow guards added every 1.2 m; the Stone Coated Metal Roof Tile-Milan Tile held fast under a decent blizzard. Architect appreciated the lighter load on old rafters.

What to verify before you sign

• Project-specific test reports: UL 2218, ASTM E108, wind pressures per local code (ASCE 7 calcs, ASTM E1592 data).
• Salt-spray hours (ISO 9227) and chip adhesion method.
• Installer training and fastener schedule; warranties tied to workmanship.

If you want the stone look without the dead load of clay or concrete, the Stone Coated Metal Roof Tile-Milan Tile remains a smart, durable pick—especially in coastal and high-wind regions.

References

1. UL 2218: Standard for Impact Resistance of Prepared Roof Covering Materials.
2. ASTM E108: Standard Test Methods for Fire Tests of Roof Coverings.
3. ISO 9227:2017, Corrosion tests in artificial atmospheres — Salt spray tests.
4. ASTM E1592: Structural Performance of Sheet Metal Roof and Siding Systems by Uniform Static Air Pressure Difference.
5. Metal Construction Association (MCA), Roofing Technical Resources and Bulletins.