Product Overview

Galvalume Corrugated Metal Roof Panels are supplied with aluminum-zinc (galvalume) coating on corrugated metal substrate, featuring superior corrosion resistance and enhanced structural stability. It is widely used for industrial workshops, commercial buildings, coastal projects and high-end villa roofing projects.

Key Specifications

Aluminum-Zinc Alloy Coating	20–180 g/m²
Sheet Thickness	0.12–1.0 mm
Color Coating System	PE (Polyester), SMP (Silicon Modified Polyester), PVDF (Polyvinylidene Fluoride)
Color Coating Thickness	10–25 μm (Top Coating), 5–10 μm (Back Coating)
Standard Width	600–1250 mm
Custom Length	Up to 12 Meters (Tailored to Customer Project Requirements)
Wave Height (Corrugated Profile)	20–40 mm
Wave Pitch (Corrugated Profile)	80–130 mm
Standard Colors	RAL, RR, and Custom Color Matching Available

Coating Information

Galvalume Corrugated Metal Roof Panels are supplied with aluminum-zinc (galvalume) coating on corrugated metal substrate, featuring superior corrosion resistance and enhanced structural stability.

Available Grades

SGCC,SGCD,SGCH,DX51D

Surface Options

Regular/mini/zero spangle

Features & Advantages

Aluminum-zinc (galvalume) coating protection:

The aluminum-zinc layer (100-150 g/m², aluminum content 55%, zinc content 43.5%, silicon content 1.5%) forms a dense protective layer, passing 1000+ hour salt spray test (GB/T 10125-2021), effectively resisting rust and oxidation in coastal, humid and heavy industrial harsh environments, far superior to ordinary galvanized panels.

Reinforced corrugated structure:

The corrugated design significantly enhances the panels' load-bearing capacity and wind resistance, complying with ASTM A792 and GB/T 2518-2019 standards. It can withstand harsh weather such as heavy rain, snow, strong wind and hail without deformation, suitable for high-demand outdoor scenarios.

Strong coating adhesion:

The aluminum-zinc layer bonds firmly with the corrugated metal substrate, meeting 180° cold bending test requirements (GB/T 3074.1-2017). During bending, cutting, overlapping and on-site installation, there is no cracking, peeling or falling off of the aluminum-zinc layer.

Excellent waterproof and drainage performance:

The corrugated surface design matches the overlapping installation method, effectively guiding rainwater discharge, preventing water leakage, and adapting to various roofing slopes and coastal outdoor environments.

Superior mechanical and processing performance:

Good ductility and tensile strength, excellent high-temperature resistance (no discoloration or delamination in high-temperature environments), easy to cut, punch and install. The lightweight design reduces transportation and construction costs, and the construction process is simple and efficient.

Cost-effective and low maintenance:

Long service life (15-25 years under normal use), no frequent painting or replacement required. The smooth aluminum-zinc surface is easy to clean, greatly reducing later maintenance costs, suitable for long-term high-demand roofing projects.

Applications

Industrial Roofing & Cladding: Factories, warehouses, and logistics centers.
Commercial Buildings: Shopping malls, offices, and agricultural facilities.
Special Environments: Coastal areas, chemical plants, and high-humidity regions.
Architectural Projects: Modern façades, canopy systems, and renovation projects.