Galvalume Roofing Sheet
Galvalume Roofing Sheet
55% Al-Zn Corrugated & Trapezoidal Box Profiles (IBR) for Roofing & Wall Cladding
| Substrate | 55% Al-Zn Galvalume Steel (GL) |
| Roofing Profiles | Corrugated Waves / Trapezoidal Box (IBR) |
| Feeding Width | 750 / 914 / 1000 / 1200 / 1220 / 1250 mm |
| Effective Width | 665 / 800 / 820 / 900 / 915 / 1050 mm |
| Thickness Range | 0.115 – 0.8 mm (Customizable) |
Custom Roofing Profiles
Multiple Profiles
Corrugated wave, trapezoidal box, and IBR profiles for versatile applications.
Flexible Coating Mass
Customizable AZ30 to AZ150 g/m² Al-Zn coating options for high heat reflection and anti-rust protection.
Ultra-Thin Options
Available in thin gauges down to 0.115 mm with full-hard structural rigidity.
Container-Optimized Lengths
Sheet lengths are selected according to the project layout, profile, handling, bundle design, and confirmed shipping limits.
Product Specifications
| Parameter | Details |
|---|---|
| Product Name | Galvalume Roofing Sheet (GL Corrugated & Trapezoidal Sheet) |
| Available Profiles | Traditional Corrugated Waves, Trapezoidal / Box Profile, IBR Roofing Profile |
| Primary Applications | Industrial Warehouses, Agricultural Sheds, Residential Roofs, Wall Cladding & Temporary Fencing |
| Standard Compliance | ASTM A792, EN 10346, JIS G3321 |
| Feeding Width (Raw Coil) | 750mm, 914mm, 1000mm, 1200mm, 1220mm, 1250mm |
| Effective Cover Width | 665mm, 800mm, 820mm, 900mm, 915mm, 1050mm (Customizable) |
| Thickness Range | 0.115 – 0.8 mm |
| Sheet Length | 1800 – 11800 mm (Tailored for 20ft / 40ft Container Loading) |
| Al-Zn Coating Mass | AZ30 – AZ150 g/m² (55% Aluminum, 43.4% Zinc, 1.6% Silicon) |
| Surface Surface Treatment | Regular Spangle, Anti-Fingerprint (AFP Passivated), Chromated / Oiled |
| Mechanical Hardness | Full Hard (G550 / HRB 85–95) or Commercial Grade (G300) |
| Bundle Weight / Packaging | 2 – 5 Metric Tons per seaworthy bundle with steel pallets |
Quality Control & Shipping Case
Calibrated forming rollers are used to improve profile consistency; interlocking and weather performance depend on the selected profile and installation.
Rigorous verification of sheet gauge, coverage width, diagonal tolerance, and cut length.
Heavy-duty waterproof wrapping and galvanized outer covers protect edges during ocean transit.
Wooden skids and steel wire reinforcement are used to help limit bundle movement during transport.
Buyer Concern & FAQ
Q1: What are the main characteristics of Galvalume Roofing Sheets compared with Galvanized Roofing Sheets?
Galvalume Roofing Sheets use a steel substrate coated with approximately 55% aluminum-zinc alloy. Compared with conventional galvanized steel, Galvalume is commonly selected for applications requiring additional heat reflectivity and corrosion protection. Actual performance depends on coating weight, environment, roof design, exposure conditions, and maintenance.
Q2: What is the difference between corrugated and trapezoidal Galvalume Roofing Sheets?
Corrugated Galvalume Roofing Sheets use rounded wave profiles and are widely used for residential, agricultural, and general roofing applications. Trapezoidal and IBR profiles use angular or deeper ribs and are commonly selected for industrial and commercial roofing. Actual structural performance depends on sheet thickness, steel grade, profile geometry, support spacing, and installation design.
Q3: How do I choose the feeding width and effective cover width for Galvalume Roofing Sheets?
Feeding width and effective cover width depend on the selected roofing profile, rib or wave geometry, side overlap, and roll-forming mold. Different profiles can produce different finished cover widths from the same raw sheet width. Feeding width, effective width, and profile dimensions should be confirmed before production.
Q4: What sheet lengths can be supplied for container transportation?
Galvalume Roofing Sheets can be cut to customized lengths according to project and transportation requirements. Suitable shipping length depends on container type, loading method, bundle dimensions, destination requirements, and handling conditions. Length and loading arrangement should therefore be confirmed before production.
Q5: What standards and quality checks are available for Galvalume Roofing Sheets?
Galvalume Roofing Sheets can be supplied according to applicable standards such as ASTM A792, EN 10346, or JIS G3321, depending on the required grade and order specification. During production, thickness, aluminum-zinc coating, surface condition, profile dimensions, effective width, and other agreed specifications can be checked according to the order requirements.
