Prepainted Aluminum Roofing Sheet
Prepainted Aluminum Roofing Sheet
Lightweight Corrugated & Trapezoidal Aluminum Profiles for Extreme Coastal & Marine Environments
| Substrate | Prepainted Aluminum Alloy (AA1050, AA3003, AA3004, AA5052) |
| Roofing Profiles | Corrugated Waves / Trapezoidal Box (IBR) / Standing Seam |
| Feeding Width | 750 / 914 / 1000 / 1200 / 1220 / 1250 mm |
| Effective Width | 665 / 800 / 820 / 900 / 915 / 1050 mm |
| Thickness Range | 0.3 – 1.2 mm (Customizable) |
Custom Roofing Profiles
Corrugated Wave Profile
Trapezoidal Box Profile
Glazed Step Tile Profile
IBR Profile
Multiple Profiles
Corrugated wave, trapezoidal box (IBR), and standing seam profiles for architectural versatility.
Custom Paint Coating
Tailored PE, HDP, or PVDF coatings in full RAL colors with optional protective film.
Lightweight & High Strength
Weighs roughly one-third of steel, reducing building dead-load and simplifying installation.
Ultimate Corrosion Resistance
Naturally rust-free aluminum core provides superior resistance in harsh chemical and coastal air.
Product Specifications
| Parameter | Details |
|---|---|
| Product Name | Prepainted Aluminum Roofing Sheet (Color Coated Corrugated & Trapezoidal Aluminum Sheet) |
| Available Profiles | Traditional Corrugated Waves, Trapezoidal / Box Profile, IBR Profile, Standing Seam |
| Primary Applications | Coastal Buildings, Chemical Plants, High-End Commercial Roofs, Airports & Public Infrastructure |
| Standard Compliance | ASTM B209, EN 485, JIS H4000 |
| Aluminum Alloy Grade | 1000 Series (AA1050 / AA1100), 3000 Series (AA3003 / AA3004 / AA3105), 5000 Series (AA5052 / AA5754) |
| Temper Designation | H14, H16, H18, H24, H26 (Customized for Roll Forming Requirements) |
| Feeding Width (Raw Coil) | 750mm, 914mm, 1000mm, 1200mm, 1220mm, 1250mm |
| Effective Cover Width | 665mm, 800mm, 820mm, 900mm, 915mm, 1050mm (Customizable) |
| Thickness Range | 0.3 – 1.2 mm |
| Paint Coating System | Top Paint: 16–28 µm | Back Paint: 5–15 µm (PE / PVDF Options) |
| Color Selection | Standard RAL Colors (e.g., RAL 9006, RAL 7016, RAL 5010) or Custom Color Matching |
| Bundle Weight / Packaging | 1 – 3 Metric Tons per seaworthy bundle with steel pallets |
Quality Control & Shipping Case
Soft-coated rollers prevent scratches and surface marks on aluminum coatings.
Waterproof wrapping and corner caps guard aluminum edges from ocean moisture.
Cushioned strapping and steel wire cabling eliminate panel friction during voyage.
Buyer Concerns (FAQ）
Q1: What are the main benefits of using prepainted aluminum roofing sheets over steel-based (PPGI/PPGL) sheets?
A: Prepainted aluminum offers 100% rust-free corrosion resistance and is approximately one-third the weight of steel. It is structurally immune to red rust, making it the preferred choice for aggressive marine environments, chemical plants, and lightweight roof design requirements.
Q2: Which aluminum alloy series should I choose for my roofing project?
A: 3000 Series (AA3003 / AA3004) is the industry standard for roofing, providing excellent tensile strength, corrosion resistance, and workability. 5000 Series (AA5052) offers superior salt-spray and marine resistance for harsh coastal areas, while 1000 Series (AA1050) is suited for basic structural cladding.
Q3: How do I choose between PE and PVDF paint coatings for prepainted aluminum roofing sheets?
A: PE (Polyester) is suitable for standard indoor cladding or mild outdoor environments. PVDF (Fluorocarbon) is strongly recommended for outdoor aluminum roofing, as it delivers extreme resistance to UV radiation, chalking, and industrial air pollution.
Q4: How do I choose the correct feeding width and effective cover width for my roofing project?
A: Feeding width is the initial flat aluminum coil width (e.g., 1000mm or 1200mm). After roll forming, the effective cover width (e.g., 800mm or 900mm) represents the actual installation coverage per sheet after overlapping. We assist you in calculating sheet quantities to minimize material waste.
