Coated Steel for Building & Construction
Everesteel manufactures coated steel coil and sheet for building and construction applications at our own factory in Jiangyin, Jiangsu — supplying roll-formers, panel producers, and construction material suppliers across 65+ countries with PPGI, PPGL, and PPAL, produced on our own coating lines with an annual production capacity of 26,000+ tons.
Built for the Construction Project — From Sample Approval to Full Production
Everesteel manufactures coated steel for roofing sheets, wall cladding, sandwich panels, cleanroom panels, and ceiling systems at our factory in Jiangyin, Jiangsu. We are not a trading company — every coil is coated and processed on our own lines, giving construction buyers direct control over coating weight, paint system, color match, and supply consistency. With 26,000+ tons of annual capacity and buyers in 65+ countries, we support both project-stage sampling and full-volume recurring orders.
26,000+
Tons annual production capacity
6,800+
Global buyers served
65+
Countries supplied worldwide
98.7%
On-time delivery rate
What Materials Are Used in Building & Construction?
Building and construction panels are typically made from prepainted steel that arrives ready to roll-form, profile, and install. The best choice depends on the structure’s exposure environment, service life, and finish requirements. Three materials account for the majority of construction projects.
- PPGI uses a hot-dip galvanized base with a factory-applied paint system, offering balanced corrosion resistance and finish flexibility for roofing, interior cladding, and general panel work in moderate environments.
- PPGL uses a Galvalume (55% aluminum-zinc alloy) base, delivering stronger barrier protection for coastal, humid, and industrial exteriors — the preferred substrate for long-service roofing and exterior wall cladding.
- PPAL uses a lightweight aluminum alloy base with natural corrosion resistance, specified for facades, ceiling systems, and panels where weight reduction and a clean surface are the priority.
Building & Construction Applications
Everesteel supplies coated steel matched to each construction component. Explore the material and coating options for your specific panel below.
Why Construction Buyers Source from Everesteel
Direct from the Manufacturer — No Intermediary
Every coil is produced at our own factory in Jiangyin, Jiangsu, on our own coating and processing lines. You are not buying from a trading company. That means direct control over your specifications, direct accountability for quality, and no margin added by a middleman.
Weather-Resistant Coatings for Exterior Service
Roofing and cladding face UV, rain, and temperature swings for decades. We supply PVDF, HDP, and SMP paint systems selected for color retention, chalk resistance, and long-term weathering — matched to your regional climate and target service life.
Galvalume and Zinc Coatings for Corrosion Protection
Coastal, humid, and industrial sites demand more from the substrate. We match zinc weight (Z60–Z275) and AZ coating (AZ30–AZ150) to your exposure environment — so your panels hold up where the project is built, not where a generic grade assumes.
Custom Colors Matched and Approved In-House
Construction projects work to specified palettes and brand standards. We hold RAL and Pantone references on file and produce custom formulations directly on our coating lines. Lab drawdowns and production samples are provided for approval before the full run.
Downstream Processing — Coil, Slit, or Sheet
Slitting, cut-to-length, embossing, and profile supply are available in-house. Your material arrives in the exact width and format your roll-former or panel line needs — reducing handling, scrap, and lead time on site.
Consistent Supply at Project Volumes
Our 26,000+ tons of annual capacity supports both project sampling and full-volume recurring orders, with a 98.7% on-time delivery rate across 6,800+ global buyers. Whether you are qualifying material for a single project or supplying a continuous panel line, we maintain supply continuity without sourcing from third parties.
Technical Specifications for Construction Panels
| Parameter | PPGI | PPGL | PPAL |
|---|---|---|---|
| Substrate | Hot-dip galvanized steel | Galvalume (55% Al-Zn) | Aluminum alloy |
| Typical Use | Roofing, interior cladding, sandwich panels | Exterior roofing, cladding, coastal builds | Facades, ceilings, lightweight panels |
| Thickness | 0.13 – 1.5 mm | 0.12 – 1.2 mm | 0.15 – 1.5 mm |
| Width | 600 – 1,250 mm | 600 – 1,250 mm | 600 – 1,600 mm |
| Metallic Coating | Z60 – Z275 g/m² | AZ30 – AZ150 g/m² | None required |
| Surface System | PE, HDP, PVDF | PE, SMP, HDP, PVDF | PE, HDP, PVDF |
| Finish | Gloss, matte, wrinkle, wood grain | Solid, matte, wrinkle, stone effect | Gloss, matte, wood grain, stone effect |
| Color | RAL / Pantone / custom | RAL / Pantone / custom | RAL / Pantone / custom |
| MOQ | 5 tons | 5 tons | 5 tons |
- Specifications are indicative. Custom gauges, widths, coating weights, and paint systems are available on request.
Processing Capabilities for Construction Supply
Downstream processing is available in-house — orders can be delivered in the format your production line requires, not just in master coil form.
Slitting
Coils slit to custom widths from 20 mm and above, with tight width tolerances and clean edges that reduce material waste and feed smoothly into roll-forming lines.
Cut-to-Length
Sheet blanks cut to your panel dimensions, with flatness and squareness tolerances suitable for direct roll-former or press feeding.
Custom Color Matching
Paint formulation adjusted to match your project color, RAL code, Pantone reference, or physical sample. A lab drawdown and production sample are provided for approval before the run begins.
Embossing
Structural or decorative emboss patterns applied in-line, including stucco, linen, and custom tooled profiles that add stiffness and hide handling marks on cladding and roofing.
Roll Forming / Profile Supply
Material supplied in gauges, widths, and coating specifications matched to common roofing, cladding, and sandwich panel profiles — ready to feed your forming line without secondary preparation.
Sourcing slit strip or cut-to-length blanks for your construction line?
Submit your width, thickness, length, coating, and color specifications. Our team will confirm lead time and pricing within one business day.
Quality Control and Certifications
Everesteel maintains a documented quality management system across every stage of production — from incoming substrate inspection through to final coil labeling and packaging.
In-process controls include:
- Incoming substrate inspection (thickness, zinc or AZ coating weight, mechanical properties)
- Paint film thickness measurement at the coating line
- Adhesion testing (cross-cut and T-bend) — critical for panels that are roll-formed and profiled
- Gloss and color measurement against approved reference standards
- Salt spray and humidity cabinet testing for exterior-grade coatings
- Final dimensional check prior to packaging
Test reports and mill certificates are issued with each shipment. Everesteel holds ISO 9001 quality management system certification. Third-party inspection — including SGS, BV, and CCIC — can be arranged on request prior to loading. Our documented controls support project qualification, export compliance, and consistent weathering performance across repeat orders.
Custom Building Panel Specifications
- Custom Colors and Finishes — Submit a RAL code, Pantone reference, or physical sample. We provide lab drawdowns and production samples for approval before mass production. Solid, matte, wrinkle, wood grain, and stone-effect finishes are available based on your project and exposure requirements.
- Custom Dimensions and Supply Format — Non-standard coil widths, slit strip, and cut-to-length sheet are available in-house. Share your thickness, width, and profile format, and we will confirm feasibility and lead time within one business day.
- OEM Supply Support — OEM configurations and relabeled supply are available for panel manufacturers, roll-forming plants, and construction material distributors sourcing to their own specifications.
- Certified Company
Technical Support and Documentation
- Application Review — Our team reviews your project type, exposure environment, forming process, and service-life requirements to recommend the most suitable substrate, coating weight, and paint system before ordering.
- Documentation and Inspection — Mill certificates, test reports, and export documentation are issued with each shipment. Third-party inspection — including SGS, BV, and CCIC — can be arranged on request prior to loading.
- Fast Inquiry Response — All product, specification, and customization inquiries receive a response within 6 hours.
Related Applications
Everesteel supplies coated steel, laminated steel, and aluminum coil and sheet across a range of industries beyond building and construction. Explore how our factory-direct materials support other applications below.
Home Appliances
Door Industry
Interior Decoration
Education Boards
FAQs
Q1. Should I use PPGI or PPGL for roofing sheets?
It depends on the exposure environment. PPGI, with its hot-dip galvanized base, is a cost-effective choice for interior applications and moderate outdoor conditions. PPGL, built on a Galvalume (55% aluminum-zinc) substrate, offers stronger corrosion resistance and holds up better in coastal, humid, and industrial environments — making it the preferred choice for long-service exterior roofing. Share your project location and target service life, and we will recommend the right substrate and coating weight.
Q2. What is the difference between PVDF and PE paint for exterior panels?
PE (polyester) is economical and well suited to interior and short-to-moderate outdoor use. PVDF (polyvinylidene fluoride) delivers the best long-term color retention, gloss stability, and chalk resistance for roofing, facades, and coastal environments. HDP and SMP sit in between, offering improved UV and weather resistance at a lower cost than PVDF. We match the paint system to your regional climate and expected service life.
Q3. What steel is used for sandwich panel facings?
Sandwich panels typically use PPGI or PPGL facings bonded to EPS, PU, PIR, or rock wool insulation cores. Consistent coating thickness, flat surfaces, and reliable adhesion are critical for clean lamination and stable panel edges across long runs. We supply facing coil in the widths, gauges, and finishes your continuous or discontinuous panel line requires.
Q4. Can you supply steel suitable for clean room panels?
Yes. Clean room panels require smooth, easy-clean surfaces with good chemical resistance and, in many cases, antibacterial coating options. We supply PPGI and PPGL with hygienic finishes suited to pharmaceutical, food processing, electronics, and hospital enclosures, delivered flat and consistent for modular panel systems. Share your hygiene and finish requirements and we will confirm the right specification.
Q5. What is the minimum order quantity for construction panel steel?
Our standard minimum order quantity is 5 tons per specification. For custom colors or non-standard dimensions requiring new paint formulation or tooling setup, we recommend 5–10 tons. We accommodate both project sampling and full production volumes — contact us to discuss your requirements.
Q6. Is Everesteel a manufacturer or a trading company?
Everesteel is a manufacturer. Every coil is produced at our own factory in Jiangyin, Jiangsu, on our own coating and processing lines. We do not source product from third-party mills and resell it. Buying factory-direct means your specification is controlled at the source, with direct access to our technical team throughout.
Q7. What is the typical lead time for construction steel orders?
Standard lead time is 15–25 days from order confirmation and deposit receipt. Custom colors requiring new paint formulation may add 7–10 days for lab drawdown and approval. Expedited scheduling may be available depending on production capacity at the time of order. We confirm your lead time when we respond to your inquiry.
Ready to Source Steel for Building & Construction? Start with the Right Information.
Send us your application, exposure environment, substrate, thickness, width, coating, color reference, quantity, and destination country. Our team will respond with pricing, lead time, and availability within 6 hours.