Overview
The Versatile Aluminum-Zinc Alloy Coated Roofing Sheet is a modern roofing solution that combines lightweight design with exceptional durability. Constructed with a steel core coated in an aluminum-zinc alloy (similar to galvalume), this sheet offers superior resistance to corrosion, heat, and mechanical stress. The alloy composition (55% aluminum, 43.4% zinc, 1.6% silicon) creates a protective barrier that withstands harsh weather while maintaining formability for easy installation.
Available in various profiles (corrugated, trapezoidal, and standing seam) and color options, these sheets cater to both functional and aesthetic needs. The pre-painted surface (using high-quality polyester or PVDF coatings) ensures long-lasting color retention and adds an extra layer of protection against UV rays.
Features
Lightweight & Strong: Weighs up to 30% less than traditional clay or concrete tiles, reducing structural load and enabling installation on lighter frameworks.
All-Weather Protection: Resists rust in humid climates, UV fading in sunny regions, and thermal expansion/contraction in areas with extreme temperature changes.
Design Flexibility: Multiple profiles and colors allow customization for architectural styles, from rustic to contemporary, with optional embossed textures for added visual appeal.
Energy-Efficient: Reflective coatings can be applied to meet cool roof standards, reducing heat absorption and lowering HVAC energy consumption.
Long-Lasting Performance: With a typical service life of 30-50 years (depending on coating thickness and environment), it requires minimal maintenance compared to organic roofing materials.
Application
Residential Homes: Ideal for sloped roofs in suburbs, mountains, or coastal areas, offering a balance of durability and curb appeal.
Commercial Buildings: Used in office parks, schools, and healthcare facilities, where low maintenance and fire resistance (non-combustible steel core) are essential.
Eco-Friendly Projects: Suits green buildings and LEED-certified structures, as the material is recyclable and contributes to energy efficiency.
Temporary Structures: Lightweight design makes it perfect for temporary shelters, construction site offices, and disaster relief housing, ensuring quick setup and reusability.
FAQ
Q: Can this roofing sheet be installed in snowy areas?
A: Yes, the alloy coating and profile design facilitate snow shedding, while the strong steel core supports heavy snow loads.
Q: How does the aluminum-zinc coating compare to pure zinc?
A: The alloy coating offers better heat resistance and slower corrosion rate, especially in high-temperature or salt-laden environments.
Q: Is it compatible with solar panel installations?
A: Yes, the sheet's structural strength allows safe mounting of solar panels with appropriate brackets and waterproofing measures.
Q: What warranty is offered for the coating?
A: Most pre-painted versions come with a 10-20 year warranty for color retention and coating integrity, backed by rigorous testing.
| Roofing sheet / Corrugated Steel Sheet |
|
Standard | AISI,ASTM,GB,JIS | Material | SGCC,SGCH,G550,DX51D,DX52D,DX53D |
Thickness | 0.105—0.8mm | Length | 16-1250mm |
Width | Before Corrugated:762-1250mm |
After corrugated:600-1100mm |
Color | Top side is made according to RAL color, Back side is white grey in normal |
Tolerance | +-0.02mm | Zinc | 30-275g |
Weight |
Top Panit | 8-35 Microns | Back | 3-25 Microns |
Panit |
Basal Plate | GI GL PPGI | Normal | Wave Shape,T Shape |
Roof |
Shape |
Certification | ISO 9001-2008,SGS,CE,BV | MOQ | 25 TONS (in one 20ft FCL) |
Delivery | 15-20 days | Monthly Output | 10000 tons |
Package | seaworthy package |
Surface treatment | unoil,dry,chromate passivated, non-chromate passivated |
Spangle | regular spangle,minimal spangle, zero spangle,big spangle |
Payment | 30%T/T in advanced+70% balanced;irrevocable L/C at sight |
Remarks | nsurance is all risks and accept the third party test |
