Professional Metal Roofing Solutions
From Classic Corrugated to Modern Standing Seam
From classic corrugated to modern standing seam — QIAOSI delivers high-quality roofing sheets worldwide. Light weight, high strength, excellent weather resistance, fast installation, and aesthetic appearance.
What Are Metal Roofing Sheets?
Durable • Lightweight • Versatile
Metal roofing sheets are roll-formed from color coated steel, galvanized steel, or galvalume steel coils through precision roll-forming technology. Featuring light weight, high strength, excellent weather resistance, fast installation, and aesthetic appearance — they are the ideal choice for modern building envelopes.
We offer a wide range of profiles, colors, and coating systems to suit different architectural styles and climatic conditions. Backside PVC coating is available to prevent condensation in temperature-variable regions. All products are ISO 9001 certified and exported to 20+ countries worldwide.
Standards: ASTM A653 / JIS G3302 / GB/T 12755.
Lightweight & High Strength
Easy to handle and transport. Reduces building structural load while the steel core provides excellent load-bearing capacity.
Waterproof & Weather Resistant
Profiled rib design ensures efficient water drainage. Anti-corrosion coating withstands harsh weather, UV radiation, and temperature extremes.
Fast & Easy Installation
Interlocking side lap design and large coverage per sheet significantly reduce installation time and labor costs.
Aesthetic & Color Options
Available in multiple RAL colors with matching accessories. PE, SMP, HDP, and PVDF coating options for different durability requirements.
Eco-Friendly & Sustainable
100% recyclable steel material. Energy-efficient manufacturing process reduces carbon footprint.
Quality Certified
ISO 9001 certified manufacturing. Third-party inspection (SGS, BV) available upon request for quality assurance.
Roof Drawings / Shape Options
Choose Your Profile
QS-18-76-836
QS-35-125-750
QS-32-130-780
QS-12-65-850
QS-15-225-900
QS-25-200-1000
QS-25-210-840
QS-15-225-900 (Variant)
QS-9-112.5-900
QS-28-207-628
QS-RUSSIA SHAPE-C8
QS-AFRICA SHAPE-IBR868
Applications
Suitable for Various Building Types
Industrial Buildings
Large-span factory roofs with excellent weather and corrosion resistance
Commercial Complexes
Shopping malls, showrooms, and commercial center roofing
Residential Roofing
Modern homes and villas with stylish and durable metal roofs
Warehouses & Logistics
Large coverage per sheet for quick warehouse roof installation
Agricultural Buildings
Barns, poultry houses, and greenhouses with cost-effective roofing
Public Facilities
Schools, stadiums, and civic building roof systems
Technical Parameters
Steel Roofing Sheet Specifications
| Parameter | Details |
|---|---|
| Base Metal | Galvanized Steel, Galvalume Steel, ZAM Steel, Color Coated Steel |
| Thickness | 0.1 – 0.8 mm |
| Zinc Coating | Z20 – Z275 g/m², AZ20 – AZ150 g/m², ZAM40 – ZAM275 g/m² |
| Paint Type | PE (Polyester), SMP (Silicon Modified Polyester), HDP (High Durability Polyester), PVDF (Polyvinylidene Fluoride) |
| Color | RAL Colors / Customized |
| Effective Width | 750 mm – 1050 mm (depending on profile) |
| Length | Customized as your request |
| Standards | ASTM A653 / JIS G3302 / GB/T 12755 |
Roofing Accessories
Complete System for a Professional Finish
Ridge Cap
Waterproof ridge covering — protects the roof ridge from water penetration
End Lap / Starter
Watertight end closure — prevents wind-driven rain intrusion at eaves
Flashings & Trim
Wall and valley flashings for waterproof transitions at junctions
Foam Closures
Bird and insect proof foam seals for open ends of profiles
Self-drilling Screws
EPDM washer sealed screws — leak-proof fastening for sheet fixing
Waterproof Tape
Butyl tape for seam sealing and side lap joints
Gutter System
Rainwater gutters and downpipes for effective water management
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