Product Description
This is a general category that encompasses all the materials used in the construction of a building. Roofing sheets are one of the essential building materials, as they play a crucial role in protecting the building's interior and structure from the external environment.
These are roofing tiles (or sheets in some cases) that have a layer of stone granules adhered to them. The base material is usually a metal sheet, commonly an aluminum - zinc alloy steel sheet. The stone granules are made from natural minerals like quartz, feldspar, and mica, with added pigments for color. The stone coating provides several benefits:
- Aesthetic Appeal: It gives the roofing a more natural and attractive appearance, similar to traditional clay or slate tiles. There are various colors and textures available to match different architectural styles.
- Protection: The stone layer helps protect the metal base from UV radiation, which can cause fading and degradation over time. It also provides some level of impact resistance against hail, debris, etc.
Roofing sheet fire - resistance stone - coated roof tiles are a specialized type of roofing material that combines the benefits of fire protection, durability, and aesthetic appeal for use in various building construction and renovation projects.
| Parameter |
Details |
| Product Name |
Corrugated Roofing Sheet Fire - Resistance Stone Coated Roof Tiles (Building Materials) |
| Material |
Al - Zinc Sheet: Composed of a steel base with an alloy coating of aluminum and zinc. The aluminum content is typically around 5 - 15% by weight, providing excellent corrosion resistance, especially in harsh environments like coastal areas or regions with high humidity. The zinc, making up 85 - 95% by weight, acts as a sacrificial anode, protecting the steel from rusting through a process called cathodic protection. The steel substrate has a tensile strength generally in the range of 300 - 500 MPa, ensuring the structural integrity of the roofing sheet during installation and use. Stone Granules: These are made from natural minerals such as quartz, feldspar, and mica. Quartz, with a Mohs hardness of about 7, offers high abrasion and impact resistance. Pigments are added to the stone granules to create a wide variety of colors. They are adhered to the al - zinc sheet using a high - quality acrylic resin or other specialized adhesives, which provide a strong and long - lasting bond. The stone granules not only enhance the aesthetic appeal of the roofing sheet but also protect it from UV radiation, reducing color fading and material degradation over time. |
| Oversize |
1340mm420mm/1400mm420mm: These dimensions are carefully chosen to balance ease of handling during installation and efficient coverage of the roof area. Larger sizes can cover more surface area per sheet, reducing the number of sheets required and thus minimizing installation time and potential leak points. However, they also need to be manageable for workers to transport and install on the roof. The width of 420mm is a common standard that allows for proper overlap with adjacent sheets, ensuring good waterproofing and structural stability. |
| Long Lifetime |
30 - 50 years warranty for Stone Coated Steel Roofing Sheet: The long lifespan is attributed to the combination of the corrosion - resistant al - zinc sheet and the protective stone - coating. The al - zinc layer safeguards the steel from rust, while the stone granules shield the sheet from UV rays, impact, and weathering. Regular maintenance, such as periodic inspections for any signs of damage or wear, can further extend the actual lifespan of the roofing sheet. Additionally, the quality of the manufacturing process, including the adhesion of the stone granules and the integrity of the al - zinc coating, plays a crucial role in determining the longevity of the product. |
| Thickness |
0.4mm, 0.45mm, 0.5mm: Different thickness options are available to meet various requirements. A 0.4mm - thick sheet may be suitable for areas with mild weather conditions or where cost - savings are a priority, as it uses less material while still providing a reasonable level of strength and durability. A 0.45mm - thick sheet offers a balance between cost and performance, providing slightly enhanced strength and protection compared to the 0.4mm option. A 0.5mm - thick sheet is ideal for regions with more extreme weather conditions, heavy snow loads, or high - wind areas, as it provides greater structural strength and resistance to external forces. |
| Weight |
2.6 - 3.0 kgs / pc: The weight of the roofing sheet is optimized to be light enough for easy handling during installation, reducing the physical strain on workers. At the same time, it is heavy enough to ensure stability on the roof, especially during high - wind events. The weight also affects the overall load - bearing requirements of the roof structure. A lighter sheet may be more suitable for older or less robust roof structures, while a heavier sheet may require a more reinforced roof framework to support its weight. |
| Work - craft |
Surface Preparation: The al - zinc sheet undergoes a thorough cleaning process, including degreasing and chemical pre - treatment. This is essential to ensure proper adhesion of the subsequent coatings. For example, a phosphate pre - treatment can enhance the bond between the steel and the adhesive used for the stone granules. After cleaning, the sheet may be passivated to further improve its corrosion resistance. Stone Granule Application: There are several methods for applying the stone granules. One common approach is the spraying method, where the stone granules are evenly distributed onto the adhesive - coated al - zinc sheet under high - pressure. Another method is the embedding process, where the sheet is passed through a bed of stone granules, and the granules are pressed into the adhesive to ensure a secure and long - lasting bond. Quality control measures are in place to ensure even distribution of the stone granules and consistent coating thickness. Forming and Corrugation: The flat al - zinc sheet is formed into a corrugated shape using specialized rolling or stamping equipment. The corrugation pattern is designed to enhance the strength and stiffness of the sheet, as well as to improve water - shedding capabilities. The depth and pitch of the corrugations are carefully engineered to meet specific performance requirements. Quality Assurance: Each roofing sheet is inspected for dimensional accuracy, adhesion of the stone granules, and integrity of the al - zinc coating. Non - destructive testing methods, such as ultrasonic testing for detecting internal defects in the steel sheet and pull - off tests for measuring the adhesion strength of the stone granules, are commonly used. Sheets that do not meet the quality standards are rejected or reworked. |
| Fire Resistance |
These stone - coated roofing sheets typically have a certain level of fire resistance. The al - zinc steel base is inherently non - combustible, and the stone coating can also contribute to fire - retardant properties. Some products may be treated with additional fire - retardant additives in the adhesive or coating to meet specific fire - safety standards. The fire - resistance rating can be classified according to local building codes and regulations, such as Class A, B, or C, with Class A offering the highest level of fire resistance. This makes them suitable for use in a wide range of building applications, including those with strict fire - safety requirements. |
| Usages |
Residential Buildings: Widely used in single - family homes, townhouses, and apartment buildings. They can enhance the aesthetic appeal of the house while providing reliable protection against the elements. The variety of colors and textures available allows for customization to match different architectural styles. Commercial Buildings: Suitable for low - rise commercial buildings, such as small offices, retail stores, and warehouses. The durability and cost - effectiveness of the roofing sheets make them a practical choice for commercial applications. Their fire - resistance properties also add an extra layer of safety in commercial settings. Industrial Buildings: In industrial plants and factories, where the roofing needs to withstand harsh environmental conditions, the corrosion - resistance and strength of these stone - coated roofing sheets are highly beneficial. The fire - resistance feature is also important in industrial environments where there may be potential fire hazards. Renovation Projects: Commonly used in building renovation and remodeling projects to replace old or damaged roofing materials. Their easy installation and wide range of sizes and colors make them a convenient choice for upgrading the roof while maintaining or improving the building's appearance and performance. |
Can you provide more details about the fire resistance properties of the corrugated roofing sheet?
How does the thickness of the Al-Zinc sheet affect the performance of the roofing sheet?
Are there any specific installation requirements for this type of roofing sheet?
Project Show
Production Process
1. Raw Material Management
- Quality Control:
- Source high - quality aluminum - zinc steel plates. Check the chemical composition of the aluminum - zinc alloy to ensure the proper ratio of aluminum (5 - 15% by weight) and zinc (85 - 95% by weight) for optimal corrosion resistance.
- Inspect stone granules for their hardness (quartz - based granules with a Mohs hardness of around 7 are preferred), color consistency, and cleanliness. Reject granules with excessive impurities or inconsistent color.
- Ensure that the adhesives used to bond the stone granules to the steel plate meet industry - standard adhesion and durability requirements. Test the adhesive's shear strength and resistance to environmental factors.
- Inventory Management:
- Maintain a proper inventory level of raw materials. Use inventory management software to track stock levels, and set re - order points based on production rates and lead times from suppliers.
- Store raw materials in a dry and well - ventilated area to prevent rusting of steel plates and degradation of adhesives due to moisture.
2. Production Process Management
- Surface Preparation:
- Ensure that the steel plates are thoroughly cleaned through degreasing and chemical pre - treatment processes. Monitor the concentration and temperature of the cleaning and pre - treatment solutions regularly.
- Check the effectiveness of the passivation process (if applicable) to enhance the corrosion resistance of the steel surface before applying the stone coating.
- Stone Granule Application:
- For the spraying method, control the spraying pressure, distance, and angle to ensure even distribution of stone granules. Regularly clean and maintain the spraying equipment to prevent clogging.
- In the embedding process, adjust the speed and pressure of the equipment to ensure that the stone granules are firmly embedded in the adhesive. Monitor the depth of embedding to ensure consistent adhesion.
- Continuously monitor the adhesion strength of the stone granules to the steel plate during production. Use pull - off tests at regular intervals to check the quality of the bond.
- Forming and Shaping:
- If the roof tiles are corrugated, closely monitor the rolling or stamping equipment to ensure that the corrugation dimensions (depth, pitch) are consistent with the design specifications.
- Check the shape and size of the finished tiles for any defects such as warping or uneven edges. Adjust the production equipment promptly if any issues are detected.
3. Quality Assurance Management
- In - line Inspection:
- Place quality control inspectors at key points in the production line, such as after surface preparation, after stone granule application, and after forming.
- Inspect the appearance of the tiles for any visible defects like uneven stone coating, scratches on the steel plate, or improper corrugation.
- Use non - contact measuring tools to check the dimensions of the tiles (length, width, thickness) at regular intervals to ensure they meet the specified tolerances.
- Final Inspection:
- Conduct a comprehensive final inspection of a sample batch of tiles before packaging. Check for all aspects of quality, including fire resistance (if applicable), water resistance, and impact resistance.
- For fire - resistant tiles, perform fire - resistance tests according to relevant standards (e.g., ASTM E108 for roofing materials in the US).
- Keep detailed records of all quality inspection results, and use statistical process control techniques to identify trends and areas for improvement.
4. Production Efficiency Management
- Equipment Maintenance:
- Develop a preventive maintenance schedule for all production equipment, including spraying guns, rolling mills, and stamping machines.
- Regularly replace worn - out parts, lubricate moving components, and calibrate sensors to ensure the equipment operates at peak efficiency.
- Train operators to perform basic equipment maintenance tasks and to report any abnormal equipment behavior immediately.
- Workflow Optimization:
- Analyze the production workflow to identify bottlenecks. For example, if the stone - granule application process is slower than other processes, consider upgrading the equipment or adjusting the production sequence.
- Implement lean manufacturing principles, such as reducing unnecessary movement of materials and workers, and optimizing the layout of the production floor for a more efficient flow.
Packaging & Shipping
Packing Stone - Coated Roof Tiles
- Cleaning and Inspection: Before packing, each tile should be cleaned to remove any dust, debris, or loose stone granules. Inspect the tiles for any damages, cracks, or uneven coatings. Damaged tiles should be set aside for repair or disposal.
- Individual Wrapping: For added protection, each tile can be individually wrapped in soft materials like bubble wrap or foam sheets. This helps prevent scratches and chipping during transportation and handling.
- Stacking: Stack the tiles in an orderly manner. The tiles should be placed with the coated side facing up to avoid any damage to the stone coating. Place spacers, such as thin wooden boards or plastic strips, between each layer of tiles to prevent them from sticking together and to provide ventilation.
- Packaging in Cartons or Crates: Place the stacked tiles into suitable cartons or wooden crates. The cartons should be of sufficient strength to withstand the weight of the tiles and should be labeled with information such as the type of tiles, quantity, and any handling instructions. If using wooden crates, make sure they are well - constructed and have no sharp edges that could damage the tiles.
- Securing the Package: Seal the cartons or crates securely. Use strong packing tape for cartons and ensure that the lids of the crates are nailed or screwed tightly. Additionally, straps or bands can be used to further secure the package if necessary.
Storing Stone - Coated Roof Tiles
- Choosing the Right Storage Location:
- Indoor Storage: The ideal storage location is an indoor warehouse or storage facility that is dry, well - ventilated, and free from extreme temperature fluctuations. This protects the tiles from moisture, which can cause rusting of the metal base and degradation of the adhesive, as well as from direct sunlight, which can fade the color of the stone coating.
- Outdoor Storage: If indoor storage is not available, outdoor storage should be a last resort. In this case, choose a flat, elevated area to prevent water from pooling around the tiles. The storage area should be covered with a waterproof tarp or canopy to protect the tiles from rain and snow.
- Stacking and Shelving:
- Stacking on Pallets: If stacking the tiles on the floor, place them on pallets to keep them off the ground and allow for better air circulation. The pallets should be in good condition and able to support the weight of the tiles. Stack the pallets no more than three to four layers high to prevent the bottom layers from being crushed.
- Using Shelving Units: Shelving units can also be used for storing the tiles. This allows for better organization and easier access to the tiles. Place the tiles on the shelves in a single layer or in stacks, depending on the size of the shelves and the quantity of tiles.
- Environmental Conditions:
- Temperature: The storage area should be maintained at a relatively constant temperature, ideally between 10°C and 30°C. Extreme cold can make the tiles more brittle, while high temperatures can cause the adhesive to soften or the stone coating to expand and contract, potentially leading to cracks or delamination.
- Humidity: Keep the humidity level in the storage area below 60%. Use dehumidifiers if necessary to control the humidity and prevent condensation on the tiles, which can lead to rust and mold growth.
By following these proper packing and storage methods, the stone - coated roof tiles can be preserved in good condition until they are ready to be installed, ensuring their performance and appearance on the roof.
Raw Materials
**STONE CHIPS FOR MAKING STONE-COATED ROOF TILES**
All Forsetra® roof tiles are coated with premium natural stone chips, sourced from volcanic formations and carefully extracted from quarries in France and China's renowned CG Rock brand. These stone chips are selected for their exceptional durability, weather resistance, and aesthetic appeal.
**Physical Properties of Our Stone Chips (Examples Only):**
- **Density:** ~2.6 g/cm³
- **Compressive Strength:** ≥150 MPa
- **Water Absorption Rate:** <0.5%
- **Abrasion Resistance:** ≤0.2% (measured by the Los Angeles Abrasion Test)
- **Color Stability:** UV-resistant, ensuring long-lasting vibrancy
We are committed to using only the highest-quality materials, ensuring durability, authenticity, and exceptional performance. Unlike other manufacturers who rely on cheap, low-quality imitation stone chips, Forsetra® prioritizes excellence and reliability in every product we create. Our stone chips not only enhance the visual appeal of our roof tiles but also provide unmatched protection against harsh environmental conditions, making them a superior choice for your roofing needs.
**Aluzinc Electroplated Steel Sheet**
Forsetra® utilizes advanced Aluzinc electroplated steel sheets as the base material for our premium roofing products. This innovative coating technology combines the best properties of aluminum and zinc, offering exceptional corrosion resistance, durability, and thermal reflectivity.
**Coating Composition:**
- **Aluminum (Al):** 55% by weight (80% by surface volume ratio)
- **Zinc (Zn):** 43.4% by weight
- **Silicon (Si):** 1.6% by weight
**Key Features and Benefits:**
1. **Superior Corrosion Resistance:** The high aluminum content forms a protective barrier against rust and environmental degradation, while the zinc provides sacrificial protection, ensuring long-term performance even in harsh climates.
2. **Heat Reflectivity:** The aluminum component reflects solar radiation, reducing heat absorption and improving energy efficiency.
3. **Durability:** The addition of silicon enhances the coating's adhesion to the steel substrate, preventing peeling or cracking over time.
4. **Lightweight Yet Strong:** Aluzinc-coated steel sheets are lightweight, making them easy to handle and install, while maintaining structural integrity.
This advanced material is a cornerstone of Forsetra®'s commitment to delivering roofing solutions that are not only aesthetically pleasing but also built to last. Whether used for stone-coated roof tiles, gutters, or other roofing components, Aluzinc electroplated steel sheets ensure superior performance and reliability for your roofing projects.
Related Products
The image depicts various components related to roofing systems, especially those used in stone - coated steel roofing. Here's an introduction to each item:
1. Sidewall Flashing - **Function**: These are metal strips installed where the roof meets a vertical wall. Their primary purpose is to prevent water from seeping into the joint between the roof and the wall, thus protecting the structure from water damage. - **Material**: Typically made of galvanized steel, aluminum, or in the case of stone - coated roofing, a material that can match or complement the roof's appearance.
2. Flat Sheet - **Function**: Flat sheets are used in areas of the roof that require a flat and continuous surface, such as for covering large, flat sections or for creating a base for other roofing components. They contribute to the overall waterproofing and structural integrity of the roof. - **Material**: Similar to other roofing components, they can be made of metal (like aluminum - zinc steel) with a stone - coated finish for added durability and aesthetic appeal.
3. Box Barge Cover - **Function**: Installed at the gable ends of a roof (the triangular sections at the end of a pitched roof). They serve to protect the edges of the roof and provide a finished look, preventing water ingress and also acting as a barrier against wind - driven rain. - **Material**: Usually made of the same metal as the roofing sheets, often with a stone - coated layer to match the roof's appearance.
4. Valley Gutter - **Function**: Located in the valleys of a roof (where two roof slopes meet). Their main role is to collect and direct rainwater from the roof slopes to the downspouts, ensuring proper water drainage and preventing water accumulation in the valleys, which could lead to leaks. - **Material**: Commonly made of metal with a corrosion - resistant coating, and in stone - coated roofing systems, they may have a stone - coated finish for a consistent look.
5. Eave Flashing - **Function**: Installed along the eaves (the lower edge of the roof that overhangs the walls). It helps to direct water away from the building's exterior walls, preventing water damage to the siding and foundation. It also provides an additional layer of protection against wind - driven rain. - **Material**: Made of metal, often with a protective coating to resist rust and weathering.
6. Barrel Ridge - **Function**: Placed along the ridge of the roof (the highest horizontal line where two roof slopes meet). It serves both an aesthetic and functional purpose. Aesthetically, it gives the roof a finished look, while functionally, it helps to seal the ridge and prevent water and debris from entering the roof cavity. - **Material**: Usually made of metal with a stone - coated surface to match the rest of the roof.
7. Angle Ridge - **Function**: Similar to the barrel ridge, but designed for roofs with multiple angles or complex roof geometries. It is used to cover and seal the ridge intersections, ensuring proper water - tightness and providing a neat appearance. - **Material**: Constructed from metal, often with a stone - coated finish for durability and visual consistency.
8. End Cap Barrel Seal - **Function**: Installed at the ends of barrel - shaped ridge components. It acts as a seal to prevent water and debris from entering the ends of the ridge pieces, enhancing the overall water - tightness of the roof. - **Material**: Typically made of a flexible and durable material, such as rubber or a specialized sealant - coated metal, to ensure a tight and long - lasting seal.
9. Nails - **Function**: Essential for securing all the roofing components in place. They hold the roofing sheets, flashing, and other elements firmly to the roof deck, ensuring stability and preventing them from being dislodged by wind or other forces. - **Material**: Usually made of galvanized steel or stainless steel to resist corrosion, ensuring long - term reliability in the roofing system.
Certificates
**Introduction to Hangzhou Forsetra Roof Tile Co., Ltd.**
Hangzhou Forsetra Roof Tile Co., Ltd. is a leading manufacturer and supplier specializing in high-quality roofing solutions, catering to both residential and commercial markets. With a strong commitment to innovation, durability, and aesthetic appeal, the company has established itself as a trusted name in the roofing industry.
**Main Services and Products:**
1. **Stone-Coated Roof Tiles:**
Forsetra offers premium stone-coated roof tiles that combine the timeless beauty of traditional roofing with the strength and durability of modern materials. These tiles are designed to withstand harsh weather conditions, providing excellent resistance to wind, fire, and impact, while maintaining an elegant appearance.
2. **Roofing Gutters:**
The company provides a range of roofing gutters that ensure efficient water drainage and protection for buildings. These gutters are crafted from high-quality materials, offering longevity and reliability in all climates.
3. **Steel Frame Accessories (Tile Hanger Bars):**
Forsetra supplies robust steel frame components, including tile hanger bars, which are essential for secure and stable roof tile installation. These accessories are engineered to enhance the structural integrity of roofing systems.
4. **Asphalt Shingles:**
For customers seeking a cost-effective and versatile roofing option, Forsetra offers asphalt shingles. These shingles are available in a variety of styles and colors, providing both durability and aesthetic flexibility.
5. **Professional Tile Installation Services:**
In addition to manufacturing top-tier roofing products, Forsetra provides expert installation services. Their team of skilled professionals ensures that every roofing project is completed to the highest standards, guaranteeing customer satisfaction and long-lasting performance.
**Why Choose Forsetra?**
Hangzhou Forsetra Roof Tile Co., Ltd. stands out for its dedication to quality, innovation, and customer-centric solutions. By combining advanced manufacturing techniques with a deep understanding of roofing needs, the company delivers products and services that exceed expectations. Whether you're looking for stylish stone-coated tiles, reliable gutters, or seamless installation, Forsetra is your trusted partner in roofing excellence.
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