Unveiling the Stone Coated Metal Roof Tile Production Process

When it comes to modern roofing solutions, stone coated metal roof tiles stand out as a superior choice for durability, beauty, and cost-effectiveness. Behind every high-quality tile is a professional Stone Coated Metal Roof Tiles Manufacturer, who combines advanced technology, strict quality control, and large-scale production to meet the needs of global markets.

A reliable Stone Coated Metal Roof Tiles Manufacturer adopts a standardized and scientific production process to guarantee stable quality, excellent durability, and consistent performance. Our factory follows a strict 13-step workflow, with professional testing and quality control at every stage:

1. Raw Material Inspection 

• High-quality galvanized steel sheet (made by hot-dip dipping with a hot-dip solution consisting of 55% aluminum, 43.4% zinc and 1.6% silicon) is used as the base material. The normal service life of the galvanized sheet is 2-6 times that of ordinary galvanized sheet.

• Conduct az content, steel plate thickness, and galvanized steel Sheet quality inspection.

• Ensure all raw materials meet international standards before entering production.
  

2. Uncoiling 

• Steel coils are placed on the uncoiler.

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• Automated machines smoothly uncoil the sheets to prepare for slitting.
  

3. Slitting 

• Large coils are slit into strips of required widths.

• Precisely cut into single steel plates to ensure that the steel plate size meets the requirements.

4. Punching & Pattern Cutting 

• Sheets are punched into specific roof tile patterns according to molds.

• Ensures consistent tile appearance and interlocking accuracy.
  

5. Shearing 

• Adjusting each tile’s length as per profile requirements.

• Ensures neat edges for smooth installation.

6. Inspection 

• Semi-finished tiles are inspected for cracks, defects, or dimensional errors.

• Only qualified pieces proceed to profiling.

7. Profiling 

• Tiles are pressed into final shapes (classic, bond, shingle, long tile, etc.) using hydraulic presses.

• Ensures structural strength and precise curvature.

8. Base Coat Application

• High-performance acrylic resin base coat sprayed evenly.

• Improves corrosion resistance and adhesion with stone granules.

9. Stone Granule Spraying 

• Natural volcanic stone granules are applied.

• Automatic spraying system ensures uniform coverage and strong bonding.

10. Top Coat Application 

• Transparent protective coating applied to lock granules.

• Enhance UV resistance, improve color durability and service life.

11. Drying 

• A multi-meter high-temperature chamber heats the stone-coated metal roof to ensure the product cures.

• Ensures a stronger bond between the sand and the steel plate.

12. Final Inspection 

• Each finished tile undergoes strict QC checks for appearance, adhesion, and impact resistance.

• Defective products are eliminated to guarantee 100% qualified delivery.

13. Packaging and Storage

• Stacking stone-coated metal roof tiles, adding some isolation materials, and packing them using a Wrapping Machine.

• Place in a cool and ventilated environment. Place sleepers under the tiles as a buffer, and then stack the tiles on top to maintain an appropriate horizontal spacing and avoid placing them in places contaminated by sand and dust. learn more

With over 30 years of experience in the roofing industry, ATTIROOF, a stone coated roofing sheet manufacturer, delivers superior performance compared to traditional roofing. We operate 20 advanced, fully automated production lines, each with independent patents and a daily production capacity of 60,000 square meters. Our company holds CE, SGS, and ISO9001:2000 management system certifications, with products exported to over 30 countries worldwide. We offer 20 types of tiles in 30 standard colors with OEM and ODM options, making our roofing tiles the ideal choice for high-end customers with a lifespan of up to 50 years.

Partnering with a professional Stone Coated Metal Roof Tiles Manufacturer—especially with ATTIROOF—means working with a supplier that offers advanced production, large capacity, international certifications, and customized solutions. For distributors, contractors, and importers, choosing the right manufacturer is the key to building a sustainable and profitable roofing business.