Galvanized steel roofing sheets are roofing materials coated with a layer of zinc on the surface through a hot-dip galvanizing process to prevent corrosion. They are usually formed into a corrugated structure using a cold or hot rolling process. The corrugated design enhances strength,helps with waterproofing and drainage, and reduces the weight of the material, making it easier to transport and install.
The galvanized layer can effectively prevent the roof sheet from coming into contact with oxygen and moisture in the air, delaying the rusting process and extending the service life. Generally, the service life of galvanized steel corrugated roofing sheets can exceed 30 years. The corrugated design can also enhance the structural strength and compressive strength,and can withstand extreme weather conditions such as strong winds, heavy rain and snow.
Grade | CGCC,DX51D,DX51D+Z,DX52D,DX53D,CGCH,SPCC,etc |
Tickness | 0.2~4mm |
Zinc Coating | 30~275g/m2 |
Color | RAL color |
Coil Weight | 3~8 Tons |
Coil ID | 508/610m |
With | 1000mm/1250mm/ As customer request |
Length | Customization |
Package | 3 layer package,Properly packed for ocean freight exportation in 20''containers |
Surface Treatment | chromed / skinpass/ oiled/slightly oiled/ dry/ anti-fingerprint (non) Chromated,(un)Oiled,Zero spangle,Minimized spangle, Regular spangle, Skin-passed,Non skinpassed |
Type | 820mm/840mm/950mm/980mm/1050mm/760mm/750mm,ect |
We offer value-added services including polishing, annealing, heat treatment, and welding for GI steel.
Process Service:Bending,Welding,Decoiling,Punching,Cutting,Moulding,or as requirement
Packing Details | Standard Seaworthy Package or according to customer's requirements |
Container Size | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM |
Q: Do you provide samples ? is it free or extra ?
A: The sample could provide for customer free,but the freight will be covered by customer account.
Q: How can you guarantee quality?
A: Pre-production sample, inner inspection, final Inspection before shipment, third-party inspection acceptable.
Q: How could you guarantee your products?
A: Each piece of products is manufactured by certified workshops, inspected by HNJBL piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.
Q: How can I get your quotation as soon as possible?
A: The email will be checked within 6 hours,and the Wechat and WhatsApp will be online 24 hours.Please send us your requirement and order information,specification(Steel grade,size,quantity,destination port),we will work out the best price soon.