Colored Stone Metal Tile

Colored Stone Metal Tiles, also known as Colored Sand Metal Tiles, Stone Granule Metal Tiles, or Metal Granule Tiles, are a new type of high-performance roofing material made from high-strength aluminum-zinc alloy-coated steel as the base material, with natural colored stone granules (basalt granules) composited on the surface, and treated with special coatings.

Core Composition (Layered Structure)

1.  Base Material Layer:

Utilizes high-strength aluminum-zinc alloy-coated steel. This steel offers excellent corrosion resistance (several times that of ordinary galvanized steel), heat resistance, reflectivity, and scratch resistance.

2.  Alloy Coating/Pretreatment Layer:

A special alloy coating is applied to the substrate to further enhance anti-corrosion capabilities and provide a good adhesive base for subsequent coatings.

3.  Primer/Adhesive Layer:

A high-performance epoxy resin primer firmly bonds the colored stone granules to the metal substrate.

4.  Colored Stone Granule Layer:

This is the core of its appearance and functionality. Naturally sintered basalt colored sand is attached to the adhesive layer under high temperature and pressure. The colored sand comes in a rich variety of colors (red, green, blue, brown, gray, black, etc.), providing an aesthetic effect that mimics traditional tiles (clay tiles, slate tiles), while offering excellent UV resistance, fade resistance, and weather resistance.

5.  Surface Protective Layer:

The outermost layer is coated with a transparent acrylic protective paint. This layer serves to:

Seal: Prevent rainwater erosion of the adhesive layer.

Enhance Adhesion: Further secure the colored sand granules.

Self-Cleaning Function: Make the tile surface less prone to dust accumulation, cleaning easily with rainwater.

Increase Gloss and Durability: Enhance aesthetics and extend service life.

Main Features and Advantages

1.  Aesthetic Diversity: The colored stone granules offer rich colors and a natural texture, capable of mimicking various traditional roofing materials (such as clay tiles, slate tiles, wood shakes) to meet different architectural style needs.

2.  Lightweight and High Strength:

Lightweight: Approximately 6-7 kg per square meter, which is 1/6 to 1/10 the weight of traditional clay tiles (about 40-60 kg/㎡) or concrete tiles (about 45 kg/㎡).

High Strength: The metal substrate provides excellent impact resistance, wind uplift resistance (typically capable of withstanding Category 12 winds), and good load-bearing capacity.

3.  Exceptional Durability:

Corrosion Resistance: The aluminum-zinc alloy-coated steel substrate and coatings provide superior anti-corrosion capabilities.

Weather Resistance: The colored stone granules offer strong UV resistance, are not prone to fading or aging; the protective layer enhances resistance to acid rain, salt spray, and other erosions.

Long Service Life: Under normal conditions, the service life can reach 30-50 years or more, far exceeding that of ordinary color steel tiles.

4.  Convenient and Efficient Installation:

Lightweight, saving effort and time in handling and installation.

Typically installed using interlocking laps or nailing methods, the installation process is relatively simple, with lower requirements for roof structure and load-bearing capacity.

Suitable for both steep slopes (minimum pitch typically 12°-15°) and gentle slopes.

5.  Good Fire Resistance: Both the metal substrate and mineral granules are non-combustible materials, meeting national Class A fire standards.

6.  Eco-Friendly and Recyclable: The main materials are metal and natural minerals, which are 100% recyclable and reusable, aligning with green building principles.

7.  Cost-Effectiveness (Comprehensive Consideration):

Although the per-unit material cost is usually higher than traditional asphalt shingles or ordinary color steel tiles, when considering its ultra-long lifespan, extremely low maintenance costs, savings in transportation and installation expenses, and reduced requirements for building structural load-bearing (which can save structural costs), its life-cycle cost often proves more advantageous.

8.  Good Thermal and Acoustic Insulation: The colored stone granule layer and the intermediate air layer provide certain thermal and acoustic insulation effects (superior to single-layer metal sheets).

Main Application Areas

Residential Buildings: Villas, self-built houses, townhouses, holiday homes, and other sloped roofs.

Public Buildings: Schools, hospitals, stadiums, libraries, commercial streets, scenic area buildings, etc.

Industrial Buildings: Factories, warehouses, logistics centers (requiring aesthetically pleasing and durable roofing).

Old Building Renovation: Replacing old, heavy traditional roofing materials to reduce structural load.

Special-Shaped Roofs: Suitable for curved, spherical, conical, and other complex roof shapes.

Summary

Colored Stone Metal Tiles are a high-performance modern roofing material that combines aesthetics, lightweight, high strength, durability, fire resistance, and environmental friendliness. They successfully integrate the strength of metal with the beauty and weather resistance of natural stone, providing architects and owners with a high-quality alternative to traditional roofing materials. Although the initial investment is higher and installation requires expertise, their ultra-long service life and extremely low maintenance costs demonstrate good economic value over their life cycle, making them particularly suitable for construction projects that prioritize quality, aesthetics, and long-term benefits.

We hope this introduction helps you fully understand Colored Stone Metal Tiles! If you have questions about specific brands, installation details, or comparisons with other materials, feel free to ask further.