Your Trusted Pvc Roof Tiles Manufacturers
PVC Roof Tiles Manufacturers
At Duolong Trade, we specialize in manufacturing high-performance PVC roof tiles designed for building material wholesalers, regional trading companies, construction project contractors, and cross-border importers. Our PVC roofing solutions are widely used in industrial warehouses, rural housing, logistics centers, and commercial projects where cost efficiency, weather resistance, and installation speed are critical. With over a decade of export experience, Duolong supports international buyers with stable production, certified materials, and scalable logistics.
We produce multiple types of PVC roof tiles to suit different environmental and functional needs. These include corrugated PVC roof sheets for warehouse coverage, ASA-coated PVC tiles for UV stability and color retention, twin-wall hollow PVC panels for thermal insulation, and translucent PVC tiles for partial daylight roofing. Each product is engineered to meet the requirements of construction in high-humidity, high-temperature, or coastal zones, making them ideal for use in Southeast Asia, the Middle East, and Africa.
Our factory operates under ISO 9001:2015 standards and utilizes precision extrusion lines to maintain consistent sheet thickness, gloss, and load capacity. All PVC roof tiles undergo CE and SGS testing to verify fire resistance, impact durability, and corrosion performance. Whether clients require trapezoidal, wave-type, or custom-profile PVC panels, we offer flexible specifications in dimensions, thickness, and regional color preferences. Products are shipped with protective packaging and detailed technical documentation, including load data, installation guides, and material certifications.
In response to B2B customer needs, we support both bulk container orders and mixed-model shipments. For government procurement projects or tender-based orders, we provide export-compliant documentation, lab reports, and multilingual support. OEM and private labeling services are available, with options for branded packaging, pallet configuration, and barcode management.
By choosing Duolong Trade as your PVC roof tile manufacturer, you work with a partner who understands the demands of large-scale distribution, multi-phase project supply, and international compliance. We offer consistent lead times, responsive technical support, and cost-effective manufacturing tailored to your business goals. Whether you are stocking multiple SKUs for your wholesale network or sourcing roofing systems for a national housing project, Duolong delivers tested reliability—on time, at volume, and to spec.
Corrugated PVC Roof Sheets
ASA Coated PVC Roof Tiles
Translucent PVC Roof Tiles
Anti-Corrosion PVC Roof Tiles
Why Choose Us
Complete In-House Production
Duolong Trade oversees the full manufacturing process—from virgin PVC resin mixing and high-temperature extrusion to corrugation and precision cutting. Each batch is produced under strict quality control to ensure dimensional accuracy, smooth finish, and material strength for wholesale orders, importers, and multi-site contractors.
Climate-Resilient Performance
Our tiles are engineered for extreme heat, humidity, and rainfall, ideal for tropical and coastal regions like Southeast Asia, the Middle East, and Africa. With UV-stabilized surfaces, anti-aging compounds, and corrosion resistance, they’re proven in real-world settings—from rural homes in Nigeria to storage facilities in the Philippines.
Custom Fit Options
We offer a variety of profiles including corrugated sheets, trapezoidal formats, twin-wall hollow panels, and translucent models. Our OEM service supports branding, labeling, custom sizing, and localized color matching—enabling you to fulfill both government tenders and phased retail distribution with ease.
Export-Ready Delivery
All orders are export-prepped with reinforced packaging, multilingual documentation, and pre-labeled pallets. Typical lead time is 7–14 working days. We optimize container space for both FCL and LCL to prevent transit damage, supporting smooth clearance in ports like Klang, Jebel Ali, and Durban.
Installation Made Easy
Each shipment includes a detailed installation guide covering overlap spacing, frame setup, screw alignment, and drainage slope. For distributors, we provide diagrams and localized handouts to reduce on-site errors—especially valuable for fast-track construction and agricultural storage projects.
Global Certification Coverage
Produced under ISO 9001:2015 protocols, our tiles meet CE, SGS, and REACH standards. For public projects or regional compliance programs, we supply full technical documentation, material safety sheets, and sustainability statements to help you pass local approvals with confidence.
Your Ideal Choice
- Proven in Harsh Climates
Duolong's PVC roofing sheets are engineered for use in extreme weather conditions—resisting UV degradation, salt-laden air, and year-round rainfall. With over 10 years of export experience, our tiles are installed in municipal warehouses in Kenya, logistics parks in the UAE, and rural homes in Vietnam. Each tile maintains long-term dimensional stability and color integrity under high temperature and humidity exposure. - Formats for Real-World Projects
We offer a full range of functional profiles: corrugated PVC roof sheets for standard builds, twin-wall hollow panels for better thermal insulation, translucent roof tiles for natural daylight entry, and trapezoidal formats for efficient water runoff. Our sizes are compatible with standard frameworks used across Southeast Asia, the Middle East, and Africa—supporting public housing, farm structures, and light industrial facilities. - Flexible OEM Solutions
Our manufacturing system supports government tenders, private label orders, and regional brand programs. We offer Pantone-matched colors, width and thickness customization, printed logos, and branded packaging. Whether supplying 2.5mm panels for schools in the Philippines or 3mm wave sheets for hardware retailers in Nigeria, we tailor output to your technical specs and local regulations.
- Certified and Sustainable
All products are manufactured under ISO 9001:2015 and tested to CE and SGS standards. Our roof tiles use recyclable virgin PVC and meet low-VOC requirements—making them suitable for government green procurement programs and infrastructure projects backed by sustainability funding. - Built for Transport and Assembly
Duolong tiles are lightweight, strong, and designed for easy handling. Spacer blocks and edge wraps protect tiles during sea freight, while profile shape enables fast on-site alignment and fixing. This reduces installation time and transit breakage, especially in phased delivery projects or remote construction zones. - Stable Supply with Flexible Delivery
Our centralized warehouse system holds 100,000 m² of stock, enabling short lead times, container load splitting, and order reservations. We support flexible shipping for distributors managing multi-location sites or seasonal rollouts, ensuring you have reliable inventory when you need it most.
FAQ Questions and Answers
We offer a full line of PVC roof tile products, including corrugated PVC roofing sheets, twin-wall hollow PVC panels, translucent daylighting PVC tiles, and trapezoidal wave-profile PVC roof sheets. Standard widths include 840mm and 960mm, with customizable thicknesses and lengths. These roofing panels are widely used in warehouses, logistics hubs, rural housing projects, and light industrial buildings across Southeast Asia, the Middle East, and Africa.
Yes. All Duolong PVC roofing tiles are manufactured in ISO 9001:2015-certified facilities and tested in compliance with CE and SGS standards. For public procurement and customs clearance, we provide complete documentation packages including Material Safety Data Sheets (MSDS), Certificates of Origin, Inspection Reports, and country-specific approvals such as SIRIM (Malaysia), QCVN (Vietnam), or SONCAP (Nigeria).
Our PVC corrugated roof sheets are engineered for durability under tropical climate conditions. They feature excellent UV resistance, anti-corrosion performance, and thermal stability. Whether installed on agricultural storage units in the Philippines or factory buildings in coastal Kenya, these panels remain dimensionally stable and visually consistent under long-term sun and moisture exposure.
Yes. We support OEM and ODM production for PVC roofing tiles, including color customization (Pantone matching), logo printing, special thickness ranges, and private-label packaging. Whether you’re supplying a national retail chain or responding to a local government bid, we can align product specifications with branding, packaging, and project requirements.
Lead time ranges from 10 to 20 working days depending on volume and product type. For high-demand models like 840mm corrugated PVC sheets and translucent PVC roof tiles, we maintain warehouse stock for quicker dispatch. We support FOB, CIF, and EXW terms via ports such as Ningbo, Shanghai, and Qingdao, with reinforced packaging using foam wrap and steel-pallet framing.
Yes. Duolong’s PVC roof tiles are used in a range of government-funded projects, including rural school buildings, social housing schemes, community shelters, and municipal warehouses. We provide engineering drawings, wind resistance certifications, fire safety ratings, and documentation required for public bidding and approval processes.
We manage the complete export process, delivering commercial invoices, packing lists, bill of lading, certificate of origin, and third-party inspection reports as required. For overseas buyers, we offer full coordination of FCL and LCL shipments, customized palletization, and container loading optimization for maximum freight efficiency and reduced risk of damage.
Yes. Our production capacity exceeds 350,000 square meters per month for corrugated PVC roofing and other tile profiles. We maintain bulk inventory for phased project deliveries and offer synchronized shipping schedules for multi-site or cross-border construction clients. All shipments are batch-controlled to ensure consistency in color, size, and thickness across long-term orders.
PVC roof tiles are significantly lighter than clay and metal roofing sheets, reducing load on the substructure. Unlike metal, they don’t rust or corrode, even in coastal regions. Additionally, PVC panels offer better thermal insulation and noise dampening, making them more comfortable and cost-effective for large-surface roofing such as warehouses, agricultural barns, or public buildings.
Yes. We provide physical samples of PVC roofing sheets, profile section cuts, and color options upon request. We also supply product datasheets, installation manuals, and test reports to support material selection, tender preparation, or distributor training. Sample dispatch via DHL/FedEx typically takes 3–5 working days, depending on destination.
Shipping & Logistics
We ensure seamless delivery of your goods worldwide
- Order Confirmation
With your approval of the design and specifications, we proceed to confirm the order and prepare for mass production. This step ensures your final approval of the product. - Mass Production
The manufacturing process typically lasts about 30 days, depending on the complexity and volume of the order. We maintain strict adherence to quality standards. - Shipping
Following production, we manage the logistics of shipping your order. Shipping times vary depending on the selected method - Goods Received
Once your tiles and building materials arrive, they are ready for distribution and immediate use, fully incorporating all specified customizations and branding as agreed upon. We remain flexible to accommodate any unforeseen circumstances, ensuring a smooth process from delivery to application.
Your Trusted ASA High Weather-Resistant Composite Corrugated Roof Tile Manufacturer
Table of Contents
Bulk Pricing Advantages for ASA Composite Corrugated Roof Tile Buyers
Stable Pricing Structure Designed for Full-Container Procurement Duolong offers a pricing system tailored to the realities of high-volume ASA corrugated roofing tile supply. For buyers managing multi-container shipments or regional material distribution, our bulk pricing is based on long-term procurement logic—not short-term market volatility. We’ve supported buyers across Southeast Asia with predictable pricing for ASA high weather-resistant composite corrugated roof tiles, helping to simplify bid preparation, warehouse planning, and regional tender submissions.
Fixed Roofing Profiles for Efficient Quotation and Repeat Orders We maintain a standardized range of core products—such as 840mm ASA corrugated roof sheets, 1050mm trapezoidal ASA-PVC composite panels, and dual-layer ASA synthetic resin roof tiles. By quoting based on fixed profiles and thickness grades, we help distributors and project managers obtain quick price references, reduce negotiation cycles, and eliminate ambiguity across repeat purchases. This allows large-scale contractors and importers to operate with cost consistency and logistics efficiency throughout multi-phase projects.
Forward Contract Pricing for Public-Sector Budget Control For contractors participating in public projects, government tenders, or institutional housing contracts, we provide forward contract options. These pricing arrangements lock in tile unit prices over 3 to 6 months, enabling buyers to stabilize budgets despite raw material fluctuations. It’s particularly useful for projects with pre-approved BOQs, long bidding cycles, or phased construction across multiple regions.
Optimized Container Loading to Lower Landed Cost per Square Meter Duolong’s pricing advantage extends beyond the product—our container loading efficiency directly impacts landed costs. Each shipment is packed with consideration for tile dimensions, color grouping, and stacking density. This reduces wasted space, minimizes handling damage, and brings down your cost per square meter. Our team manages the full export flow under FOB, CIF, or EXW terms, providing detailed packing lists, HS codes, CE/SGS reports, and certificates of origin to streamline customs and logistics.
Planned Production for Seasonal or Multi-Site Delivery Our production scheduling is built around real project timelines. For buyers working under seasonal construction windows, or managing deliveries to multiple job sites, we offer advanced slot reservation and batch coordination. This helps procurement teams secure consistent product flow across quarters without bottlenecks—essential for those supplying government schools, warehouse developments, or low-cost housing programs.
A Pricing Model Built for Project Execution, Not Just Purchase Our bulk pricing approach reflects field-level realities. Whether your order supports a municipal roof renovation, a factory roofing installation, or an urban housing initiative, Duolong provides more than a per-square-meter quote—we deliver a scalable sourcing model backed by stable manufacturing, full documentation, and export readiness. This ensures that every shipment supports your project delivery—on time, within budget, and with the consistency expected from a trusted factory partner.
Consistent Product Specifications for PVC Roof Tile Orders
Standardized Extrusion for Structural Uniformity and Installation Accuracy At Duolong, all corrugated PVC roofing sheets and trapezoidal PVC roof tiles are produced through a consistent extrusion workflow using precision-calibrated die sets. From sheet thickness control to wave height accuracy and width standardization, every tile complies with strict dimensional tolerances. This ensures compatibility during installation, eliminates alignment issues, and reduces labor time—especially in high-volume roofing applications such as warehouse projects, social housing, and municipal depots.
Fixed Die Profiles to Support Repeat Orders and Phased Construction Projects All tile profiles, including 840mm corrugated PVC panels and 960mm wave-type roof sheets, are manufactured using locked-in mold systems with fixed pitch and crest designs. For clients managing multi-stage construction or ongoing public procurement, this means identical product dimensions from batch to batch—even across different production months. Our consistency supports long-term contractors, regional distributors, and repeat buyers who depend on specification stability.
Color Matching System for Visual Uniformity Across Large Surfaces We utilize calibrated pigment blending systems and controlled extrusion coating to maintain consistent coloration throughout every shipment. Popular tones such as traffic grey, terracotta red, and sky blue are formulated to exact color codes, eliminating hue variance between containers. This is critical for government building upgrades, branded retail facilities, or institutional projects where roof appearance must remain uniform across wide-span areas and multiple buildings.
B2B-Oriented Labeling and Pallet Packing for Supply Chain Efficiency Each shipment of Duolong PVC roofing tiles includes full traceability—batch number, thickness code, color identifier, and extrusion line ID are marked on pallet labels and product sleeves. This allows fast identification and simplified customs clearance, even in multi-model, multi-color shipping containers. Our packaging is structured for optimal unloading at bonded warehouses, distribution hubs, and local job sites—supporting clients who manage large inventory SKUs or decentralized delivery points.
Strict Material Control from Virgin Resin Input to Finished Panel Output All PVC roof tiles are produced using virgin-grade PVC material with anti-UV, anti-aging, and fire-retardant additives, processed through closed-loop extrusion controls. We employ thickness scanners, wave pitch monitors, and post-extrusion cooling calibration to prevent warping, dimensional deviation, or surface discoloration. For clients managing tight build schedules or working under public project supervision, this guarantees ready-to-install materials with zero onsite adjustment required.
Certified Manufacturing Process for Institutional and Governmental Use Our PVC roofing systems are manufactured under ISO 9001:2015-certified procedures and verified through third-party labs (SGS, CE). Each product line is tested for mechanical strength, color retention, temperature resistance, and chemical exposure tolerance. These certifications support formal submission in government housing bids, public sector construction audits, and long-term infrastructure tenders requiring validated material specifications.
Repeatable Output for Predictable Performance on Site With Duolong, every corrugated PVC roofing tile you receive is engineered to match the last—regardless of batch date or destination. This level of repeatability is crucial for clients executing multi-site developments, supply agreements for school roofing programs, or phased municipal tenders. You don’t have to remeasure, reverify, or re-spec—our product consistency allows your teams to focus on execution, not correction.
Long-Term Partnership Support for PVC Roof Tile Supply
Structured Supply Models for Recurring Procurement and Multi-Region Delivery At Duolong, we serve clients who operate beyond single transactions. Our long-term PVC roof tile supply system is designed to support distributors, contractors, and cross-border importers handling scheduled deliveries across multiple cities or countries. Whether you’re managing full-container orders of corrugated PVC roofing sheets or staggered shipments of twin-wall PVC panels, we provide fixed-format manufacturing and rolling inventory dispatch to maintain a reliable procurement rhythm for institutional, commercial, or rural projects.
Reserved Production Capacity and Locked Pricing for Stability To protect your roofing material pipeline from global PVC price fluctuations or construction season bottlenecks, we offer production slot reservation and forward contract pricing. For repeat orders of 840mm corrugated PVC roof tiles, translucent PVC daylight sheets, or insulated twin-wall panels, we can lock in rates and delivery windows in advance. This safeguards your budget and schedule, especially for government bids, regional development programs, or large-scale residential construction.
Project-Aligned Coordination from Demand Forecast to Final Delivery Each long-term account is assigned a dedicated project coordinator who oversees procurement planning, lead time scheduling, and export document preparation. From pallet configuration and HS code declaration to container loading and customs clearance, we align every shipment to your build calendar. Whether your roofing materials are bound for bonded warehouses or direct-to-site delivery, our coordination ensures timely arrival and material readiness.
Advance Production Planning for Multi-Site and Institutional Projects For clients running annual procurement cycles or public-sector roofing initiatives, we enable advance line booking and resin allocation planning. This ensures stable output of trapezoidal PVC roof panels or corrugated sheets, even during peak demand or supply chain pressure. With batch-controlled extrusion and pre-labeled packaging, your roofing inventory is always on standby for deployment when construction timelines move forward.
Export Logistics Built for Cross-Border Distribution and Regional Rotation Our logistics team supports bonded warehouse deliveries, third-party consolidation, and SKU-managed exports across Southeast Asia and the Middle East. From stacking density optimization to label customization and container separation by model or color, every shipment is export-ready and distribution-efficient. This reduces handling time for partners managing multi-country resale networks or phase-based government supply contracts.
Priority Access to Technical Resources and Upgraded Product Options Long-term clients receive early access to new PVC roofing technologies, including UV-stable translucent tiles, extra-thick corrugated panels, and heat-reflective surface upgrades. We supply technical datasheets, installation guidelines, and sample kits to support product approval in government tenders, architectural libraries, and project specification packages. This accelerates your business development pipeline and strengthens your project bid proposals.
A Manufacturing Partner Committed to Procurement Continuity Choosing Duolong means building a supply partnership, not just placing an order. Our long-term support model delivers specification consistency, product traceability, international certification (ISO, SGS, CE), and seamless export handling. For clients operating in multiple regions or servicing national construction mandates, we help remove risk, reinforce schedules, and ensure each roof you deliver starts with material you can trust—on time, at volume, to spec.
How PVC Roofing Helps Reduce Construction Costs
Lightweight Material Reduces Structural Load and Subframe Costs Duolong’s corrugated PVC roof tiles and trapezoidal PVC roofing panels are significantly lighter than clay tiles or metal sheets. This material advantage translates into reduced structural requirements for steel trusses, roof purlins, and concrete supports—particularly in low-rise warehouses, modular buildings, or government housing schemes. In real project scenarios, engineers report measurable savings in steel volume, labor hours, and concrete reinforcement—directly lowering project foundation and framing costs.
Weather-Resistant Composition Minimizes Repair and Maintenance Expenses Our PVC roof tiles are manufactured using virgin-grade polyvinyl chloride with anti-UV and anti-aging additives, offering high resistance to solar radiation, humidity, salt air, and acid rain. Compared to galvanized metal that corrodes or ceramic tiles that chip under stress, Duolong’s plastic PVC roofing sheets require no repainting, sealing, or early-stage replacement—reducing lifecycle maintenance costs. This makes them ideal for public school roofing, remote warehouses, and utility structures in high-humidity zones.
Quick-Fit Sheet Designs Improve On-Site Installation Speed Every PVC roofing panel we produce—be it corrugated, twin-wall, or trapezoidal—is designed with pre-set widths (typically 840mm or 960mm), uniform pitch, and clean-cut edges. This allows for easy alignment and simplified overlapping, saving time during rooftop installation. In projects with tight construction schedules or labor constraints, clients report shortened scaffold duration and reduced crew time—key to lowering labor overheads and staying within budget.
Reinforced Packaging Reduces Damage and Site Losses During Shipping PVC roof tiles are flexible and impact-tolerant, meaning they can absorb transport shocks better than ceramic or concrete alternatives. Each shipment from Duolong is palletized with PE film, edge protection, and stacked to reduce compression deformation. These measures help avoid costly product loss during port handling or inland delivery—especially important for international buyers and contractors working in remote or distributed job sites.
Thermal and Acoustic Performance Generates Energy Savings Our PVC roofing systems provide basic thermal insulation and noise dampening, reducing indoor heat accumulation and softening external sound levels. In workshops, classrooms, or market shelters, this helps lower air conditioning demand and enhances user comfort without requiring additional ceiling insulation. Over time, this contributes to lower operational energy costs—especially valuable in tropical and subtropical regions.
Cost Reduction Measured from Factory to Final Roofline Working with Duolong means more than sourcing roof panels—it means gaining an edge in cost control across the entire project cycle. From lightweight structural design to fast rooftop coverage, low maintenance, and container-efficient logistics, our corrugated PVC roofing tiles and twin-wall PVC roof sheets deliver value that goes beyond price per square meter. That’s why construction material distributors, project contractors, and government procurement teams across Southeast Asia and beyond choose Duolong to reduce cost, risk, and material uncertainty at every stage.
Ensuring Smooth Customs Clearance and Compliance in Global Trade
Export-Ready Shipments for Corrugated PVC Roofing Buyers At Duolong, we understand that shipping corrugated PVC roofing sheets and trapezoidal PVC roof tiles to international clients requires more than manufacturing capability. Our export operations are designed for construction material wholesalers, public-sector contractors, and regional importers who depend on predictable customs clearance and verified documentation. Whether your shipment is destined for bonded warehouses, project sites, or phased delivery programs, we ensure that every container meets the compliance standards of your target market.
Country-Specific Export Documentation Prepared Accurately Every shipment of Duolong PVC roof tiles includes a full documentation package tailored to the requirements of your local customs authority. We provide commercial invoices, HS code declarations, certificates of origin, packing lists, factory license copies, and PVC material data sheets in formats accepted in ports across Southeast Asia, Africa, and the Middle East—including Port Klang, Jebel Ali, Lagos, and Ho Chi Minh City. Our export file precision reduces port-side delays, improves import clearance efficiency, and supports your internal audit requirements.
SGS and CE Certifications Included for Compliance Verification All Duolong PVC roofing panels are backed by CE certifications, SGS test reports, and factory-level quality control records verifying thermal resistance, UV durability, and impact tolerance. These documents are essential for customs review, government-funded project qualification, and construction material registration under national procurement platforms. Our compliance documentation allows distributors and contractors to meet infrastructure approval demands and pass inspection checkpoints with confidence.
Pre-Shipment Verification and Labeled Packing for Inspection Accuracy Before any container is sealed, our export team conducts a full pre-shipment inspection: checking item counts, panel colors, thickness codes, and labeling against the packing list. Corrugated PVC sheets and trapezoidal roof tiles are stacked on steel-reinforced pallets, shrink-wrapped, and barcode tagged. Our packing process ensures that what’s declared matches what arrives—minimizing customs disputes, unpacking penalties, or misdeclared volume issues at destination ports.
Supporting Public Procurement Files with Material Compliance Declarations For government construction or donor-backed development programs, Duolong provides additional documentation such as MSDS reports, recyclable material declarations, fire-retardant content sheets, and low-emission statements. These documents are available in English, Vietnamese, Arabic, or client-requested languages, helping buyers secure approvals in housing tenders, school building projects, or NGO shelter installations.
Coordinated Logistics Through Certified Freight Channels We coordinate FCL and LCL shipments under FOB, CIF, or EXW terms from major Chinese ports like Ningbo, Qingdao, and Shanghai. Our logistics team works with bonded freight forwarders and customs brokers experienced in moving bulk PVC construction materials. From container loading plans to destination warehouse intake schedules, we align every step of the export process with your delivery requirements—ensuring your roofing panels land where and when they’re needed.
Real-Time Status and Complete Document Visibility Each order is tracked from container loading through to port clearance. Clients receive milestone updates on ETD, customs processing, and delivery timelines. Our digital export folder includes scanned invoices, packing confirmations, and shipping documents for transparent records management. This visibility supports distributors, procurement managers, and warehouse planners in coordinating intake and site deployment without delays.
Beyond Manufacturing—A Full Export Compliance Solution When you source corrugated or trapezoidal PVC roof tiles from Duolong, you receive a complete export-ready system. Backed by certified documentation, structured packing, and expert freight handling, our shipments arrive inspection-ready and compliant with international standards. That’s why contractors, importers, and government project buyers across Asia, the Middle East, and Africa trust Duolong not just to produce, but to deliver with certainty.
Flexible Order Quantities to Support Every Stage of Your Business
Low MOQ Support for Distributors, Importers, and Project Contractors At Duolong, we understand that not every roofing order starts at full-container scale. Whether you’re introducing corrugated PVC roofing sheets to a new territory, submitting product for government project approval, or preparing phased supply for a housing program, we offer low minimum order quantities across our standard PVC profiles. This supports early-stage distributors, regional contractors, and import buyers navigating space constraints, budget planning, or trial procurement cycles.
Mixed Profile Shipments to Match Market Variability Clients may mix different PVC roofing formats—such as 840mm corrugated PVC roof tiles, 960mm trapezoidal PVC roof panels, or translucent daylighting PVC sheets—within a single LCL or trial order. This flexibility allows distributors to test demand across SKUs, contractors to fulfill diverse specification packages, and public project suppliers to validate options in tender proposals. We optimize pallet stacking and shipping layout to ensure safe transit and simplified unloading across mixed models.
Consistent Manufacturing Quality, Regardless of Quantity Whether you order two pallets or twenty containers, all PVC roof tiles are manufactured under the same ISO 9001:2015-certified quality control process. Each batch undergoes dimensional verification, extrusion stability checks, and UV resistance validation. Products are wrapped, barcode-labeled, and packed to CE and SGS export documentation standards—ensuring your shipment meets compliance expectations, regardless of volume.
One Supplier for All Stages of Procurement From market entry to scaled deployment, Duolong supports your growth through a stable, repeatable supply chain. Clients expanding from trial orders of trapezoidal PVC roofing panels to full-scale procurement for industrial roofing projects benefit from consistent profile geometry, color batch integrity, and extrusion line availability. This eliminates the visual inconsistencies and timeline disruptions often caused by supplier switching mid-project.
Designed for Market Validation, Pilot Tenders, and Partial Build Phases Our flexible MOQ system is ideal for customers preparing roofing material samples for tender documentation, installing pilot buildings, or validating product installation under real site conditions. Smaller shipments enable you to check installation fit, packaging durability, and visual appeal before scaling orders—minimizing financial risk and allowing agile response to project timelines.
Full Export Service Included, Even for LCL Loads Every shipment, no matter the size, includes comprehensive export support: commercial invoices, packing lists, HS code filings, CE and SGS certifications, and certificate of origin. Our logistics partners coordinate small-volume exports with the same care given to full-container shipments—supporting your delivery schedule, port declaration, and customs compliance throughout Southeast Asia, the Middle East, and Africa.
A Roofing Supply System That Scales with You Whether you’re sourcing your first shipment of corrugated PVC roofing tiles or preparing your 10th container of mixed roof panels, Duolong offers a flexible, scalable supply system aligned with your project trajectory. From bid evaluation and test installation to region-wide product deployment, we provide structure, quality, and confidence—ensuring your roofing program grows with consistency and full compliance from day one.
Dedicated After-Sales Support for Reliable Project Execution
Installation Support That Starts Where Delivery Ends At Duolong, delivering corrugated PVC roofing sheets or trapezoidal PVC roof tiles is just the beginning. Every batch is backed by clear installation guidance and technical support, tailored for the needs of contractors, importers, and government project teams. Whether your order is headed to a rural school roof, an export warehouse structure, or a housing development zone, we provide profile-specific manuals, remote advisory access, and region-adapted instructions to ensure every PVC tile is installed correctly and efficiently.
Site-Specific Recommendations for Framing and Weather Conditions Roof slope, structural material, and climate zone directly impact performance. That’s why our after-sales support includes project-specific advice—such as purlin spacing for 840mm corrugated PVC roof tiles, screw selection for high-humidity conditions, and panel expansion margins for sun-exposed sites. We help installation teams in coastal, inland, and monsoon-affected regions execute roofing work with confidence and long-term stability in mind.
Clear, Printable Technical Documents for Each Profile Type Every shipment includes matched documentation based on the ordered panel specifications. Whether you’re using 840mm corrugated PVC tiles, 960mm trapezoidal panels, or twin-wall insulated sheets, we supply layout guides, fixing diagrams, overlap illustrations, and anchoring torque instructions in both hard copy and digital formats. These documents streamline jobsite workflow and minimize alignment errors—especially useful for modular buildings and steel frame structures.
On-Site Challenges Addressed with Field-Based Solutions If field issues arise—such as panel buckling, frame mismatch, or installation missteps—our team responds based on actual case data from completed projects. Drawing from installations across Southeast Asia, the Middle East, and Africa, we help troubleshoot fixing misalignments, substrate preparation errors, or tile displacement before they impact schedule or material life. Our job is to protect your timeline and the structural integrity of your roofing.
Continuity of Support for Multi-Phase and Ongoing Construction For public sector or institutional buyers managing multi-site rollouts, Duolong tracks site-specific installation data, preferred panel direction, screw system choices, and finish schedules. This ensures consistent setup between deliveries, especially for color-matched roofing phases or aligned roofline visuals across campuses, depots, or social housing lots. Our continuity saves retraining time and prevents costly rework.
Training Materials for New Installers and Market Entry Projects For customers launching Duolong PVC roofing tiles in new regions, we offer video demonstrations, installer manuals, and one-on-one technical orientation. Whether you’re a first-time buyer or preparing your distributor network for retail sales, our training tools accelerate installation quality and reduce client-side learning curves. In key regions, we also coordinate live technical walk-throughs during your initial container deployment.
Every Order Supported with Practical Installation Guidance From trial orders of corrugated PVC roof tiles to large-scale procurement of trapezoidal PVC roofing panels, Duolong ensures your materials are matched with hands-on support. Our after-sales service helps your team install faster, waste less, and extend the lifespan of each roofing project—whether for public works, commercial infrastructure, or phased residential builds.
Certification and Documentation Support for Government and Institutional Roofing Projects
Proven Experience with Government and Public Sector Roofing Procurement At Duolong, we have supported numerous government-funded and institutional construction projects with corrugated PVC roof tiles and trapezoidal PVC roofing panels—serving rural schools, disaster relief shelters, healthcare centers, and public housing developments across Southeast Asia, the Middle East, and Africa. Our export and compliance teams are familiar with the document sets, certification standards, and technical validation required for public procurement, ensuring our roofing systems meet tender expectations from bidding to final inspection.
ISO-Certified Manufacturing with Verified Product Testing All Duolong PVC roofing panels are produced under ISO 9001:2015-certified quality management systems. Every production batch undergoes dimensional validation, UV stability checks, tensile strength testing, and chemical resistance analysis. We provide CE conformity documentation and SGS laboratory testing reports to meet public tender requirements, construction audits, and donor-backed infrastructure evaluation criteria—ensuring product durability under real-world conditions.
Full Tender Documentation Package for Government Submission Each shipment includes a complete export documentation set: commercial invoice, certificate of origin, HS code listing, packing list, and CE/SGS reports. For public tender applications or institutional bids, we also provide Declaration of Conformity, ISO-referenced technical datasheets, raw material traceability, and compliance sheets customized to standard government procurement templates. This documentation reduces back-and-forth revisions and supports faster approval cycles.
Specifications Aligned with Government Engineering Manuals We review project BOQs and technical specifications to ensure our 840mm corrugated PVC tiles or 960mm trapezoidal roof panels meet required overlap width, thickness tolerance, fastener points, and subframe spacing. This alignment helps contractors pass design review stages, avoid material rejection on-site, and minimize delays caused by spec deviation—especially in public education, housing, and infrastructure tenders.
Multilingual Documentation Support and Regional Compliance Duolong’s export compliance team provides bilingual support in English–Vietnamese, English–Arabic, and English–Thai to meet government review requirements across different regions. We assist with CE format conversion, SGS report integration, factory audit reports, and format customization for government project file systems—ensuring local compliance, smooth customs clearance, and internal supervisory approval.
Track Record in Certified Public Roofing Installations Our PVC roof tiles have been installed in donor-funded resettlement projects, public health centers, and school rehabilitation programs where certified performance and documentation were mandatory. We’ve coordinated directly with local government agencies, national contractors, and funding agencies to provide structured document packages, product validation, and export tracking aligned with each stage of the project lifecycle.
A Manufacturing Partner Built for Institutional Compliance Working with Duolong means more than receiving certified roofing tiles—it means partnering with a document-ready, regulation-aligned supplier. Our ability to deliver CE-certified PVC roofing panels, SGS-tested product data, and bid-specific documentation makes us a reliable partner for government contractors, public agencies, and infrastructure procurement offices aiming for smooth submission, fast approval, and long-term roof system performance.
Proven Durability in Humid and High-Temperature Environments
Designed for High-Humidity, High-Temperature, and Coastal Conditions Duolong’s corrugated PVC roof tiles and trapezoidal PVC roofing panels are engineered to perform in regions where standard roofing materials fail. From tropical markets in Southeast Asia to salt-air industrial zones along the West African coast, our PVC roofing systems resist deformation, fading, and material breakdown caused by long-term heat, moisture, and UV exposure. These panels are trusted by contractors, developers, and government agencies for school roofs, storage centers, and low-rise municipal buildings in climates where durability is non-negotiable.
Co-Extruded PVC with UV-Stabilized Surface for Structural Integrity Each Duolong PVC roof tile features a single-material extrusion using virgin-grade resin, enhanced with UV-resistant additives and anti-aging stabilizers. This formulation prevents yellowing, brittleness, or surface chalking under extreme sunlight or heavy rain cycles. The material maintains its rigidity and shape even under repeated thermal expansion or high roof surface temperatures—key for public facilities, agricultural warehouses, and decentralized housing programs in hot, wet regions.
Verified Performance Through Tropical Climate Testing Duolong’s PVC roofing sheets are tested by third-party laboratories under accelerated weathering protocols to confirm their performance in harsh environments. Test results confirm low water absorption (<0.1%), stable impact resistance, and maintained color gloss even after prolonged UV and moisture exposure. These qualities are essential for contractors working on open-air buildings, humid agricultural projects, or institutional shelters where high durability and weather tightness are critical.
Lightweight Format Prevents Load Stress and Moisture Retention Heavy clay or metal roofing in humid zones often causes structural fatigue, mold growth, or frame corrosion. Our corrugated PVC roof tiles are lightweight and non-absorbent, reducing the risk of frame overloading, fastener failure, and underlayer condensation. This makes them especially well-suited for steel-truss prefabricated structures, wood-framed rural buildings, and government shelter units requiring cost-effective, low-maintenance coverage over time.
Installation Guidelines Adapted for Tropical Environments To ensure correct performance in high-humidity and high-temperature zones, Duolong provides climate-adjusted installation materials. Each shipment includes fastening layout plans, purlin spacing recommendations, slope angle guidance, and expansion spacing values tailored to regional construction environments. These guidelines help field teams avoid buckling, overstressing, or improper fastening in climates with intense rainfall, direct sun, or strong coastal winds.
A Roofing Material Built for Real-World Climate Demands With Duolong, you don’t just receive a corrugated PVC roof panel—you gain a solution designed for the heat, moisture, and atmospheric conditions where ordinary materials fail. Whether roofing an education facility in a monsoon zone, a health post in a coastal village, or a logistics depot in a desert-edge town, our PVC roofing tiles deliver reliable coverage where performance must be proven, not promised.
