Corrugated Roofing Sheets
Corrugated Roofing Sheets Manufacturer and Supplier in Indonesia
Corrugated roofing sheets are metal sheets formed with a wavy profile that adds stiffness, widely used for roofs, walls and sheds across Indonesia. Sino East Steel is a corrugated roofing sheets manufacturer and supplier based in Tianjin, China, exporting to Indonesia and more than 50 countries for over 18 years. As a direct factory supplier with a 65,000 m2 production base and 500,000 tons of annual capacity, we deliver to Indonesian importers, distributors, contractors and project companies with complete documentation, including the Mill Test Certificate (MTC) per EN 10204 3.1 on every shipment.
Indonesian buyers choose our corrugated roofing sheets because every batch is tested in our ISO 9001:2015 certified quality system, packed seaworthy and shipped to Tanjung Priok (Jakarta), Tanjung Perak (Surabaya), Belawan (Medan) and Makassar within 18-25 days after production. Third-party inspection by SGS, BV or TUV can be arranged at the factory or at the destination port, and SNI documentation support is available for regulated applications.
What Is Corrugated Roofing Sheets?
Corrugated roofing sheets are produced by roll forming galvanized or color-coated steel into a wavy profile, which increases bending strength without increasing material thickness. Galvanized sheets (Z180-Z275 zinc coating) protect against tropical rain and humidity, while color-coated (PPGI) sheets add an aesthetic finish with long-term color retention for residential and commercial buildings.
Indonesian contractors, hardware distributors and building material traders source corrugated roofing sheets from Sino East Steel for housing estates, factory roofs, warehouse cladding, agricultural buildings and temporary structures across the archipelago.
Standards, Grades and Specification Range
Our corrugated roofing sheets is manufactured to internationally recognized standards and supplied in the sizes most frequently ordered by Indonesian importers and distributors:
| Item | Specification |
|---|---|
| Base metal | Galvanized steel (GI) or pre-painted steel (PPGI) |
| Standards | ASTM A653, JIS G3302, GB/T 2518 |
| Thickness | 0.20 mm - 0.80 mm |
| Zinc coating | Z180 - Z275 g/m2, or Z350 on request |
| Profiles | Corrugated, trapezoidal, and custom roll-formed profiles |
| Width / length | Standard 840-1100 mm effective width, custom lengths |
| Color | RAL colors for color-coated sheets |
| Certification | ISO 9001:2015, MTC per EN 10204 3.1 |
Zinc Coating and Profile Accuracy
Roofing sheets fail early when the zinc coating is too thin or the profile geometry is inconsistent. We verify coating weight by thickness testing on every production batch and control roll forming tolerances so sheets lock together cleanly on site. For coastal areas of Indonesia, we recommend Z275 or higher to resist salt-laden air, and color-coated sheets with HDP or PVDF finishes for maximum color and corrosion life.
Applications of Corrugated Roofing Sheets in Indonesia
- Residential roofing - Housing roofs and extensions across Java, Sumatra and Bali.
- Industrial roofing - Factory roofs, warehouses and workshop cladding.
- Agricultural buildings - Poultry houses, storage sheds and farm structures.
- Temporary structures - Site offices, worker camps and event structures.
- Fencing and cladding - Wall cladding and perimeter screening.
Why Indonesian Buyers Buy Direct from Our Factory
When you source corrugated roofing sheets from Sino East Steel, you buy from the manufacturer, not a trading company. That means the specification confirmed in the quotation is the specification delivered, at mill-direct pricing with complete quality accountability:
| Factor | Factory direct (Sino East Steel) | Trading company |
|---|---|---|
| Pricing | Mill-direct, no middleman markup | Multiple markups added |
| Quality control | In-house testing lab, heat number traceability | Relies on supplier documents |
| Documentation | MTC per EN 10204 3.1 on every batch | Documents often incomplete |
| Production control | Direct scheduling, 15-25 days lead time | Lead time dependent on third parties |
| Custom orders | Custom dimensions and specifications accepted | Limited to stocked items |
How to Order Corrugated Roofing Sheets as an Indonesian Importer
- Send your required standard, grade, size, quantity and destination port to [email protected] or WhatsApp +86 186 2208 8833.
- Receive a formal quotation with FOB Tianjin or CIF pricing, delivery time and shipping options within 24 hours.
- Confirm the specification in writing; production starts after order confirmation and 30% deposit.
- Track your shipment with weekly progress updates and full export documentation, including MTC, commercial invoice, packing list and bill of lading.
Shipping and Logistics to Indonesian Ports
We ship on a monthly rolling schedule to the main Indonesian ports: Tanjung Priok (Jakarta), Tanjung Perak (Surabaya), Belawan (Medan) and Makassar, with regular consolidation for mixed-product container orders. Sea freight from Tianjin to Indonesian ports typically takes 18-25 days. Mixed sizes and mixed product lines can be consolidated in one container to reduce your total landed cost.
Frequently Asked Questions
What is the minimum order quantity?
MOQ is typically 5 metric tons per specification, and mixed-size container loads of 20 or 40 feet are welcomed for distributors and project stock orders.
What are the payment terms?
We accept T/T, L/C, D/A, D/P and O/A for long-term partners. Standard terms are 30% deposit and 70% against copy of shipping documents.
Do you provide Mill Test Certificates?
Yes, every batch ships with an MTC per EN 10204 3.1 including chemical composition and mechanical test results.
How long does delivery to Indonesia take?
Production takes 15-25 days after specification confirmation, followed by 18-25 days sea freight to Tanjung Priok, Tanjung Perak, Belawan or Makassar.
Can third-party inspection be arranged?
Yes, SGS, BV or TUV inspection can be arranged at the factory before loading or at the destination port, which is common for government and project supply in Indonesia.
What zinc coating should I choose for coastal areas?
For coastal and high-humidity areas we recommend Z275 or higher, or color-coated sheets with HDP/PVDF finishes for maximum service life.
Can you supply custom profile lengths?
Yes, we cut to your required lengths to minimize on-site waste.
Request a Quote from the Corrugated Roofing Sheets Manufacturer
Send your specification to [email protected] or message us on WhatsApp +86 186 2208 8833. We respond within 24 hours with pricing, lead time and shipping options to Indonesian ports.