Your Trusted Synthetic Resin Roofing Tiles Manufacturers
Synthetic Resin Roofing Tiles Manufacturer
At Duolong Trade, we specialize in manufacturing high-performance synthetic resin roofing tiles tailored for wholesalers, building materials importers, and regional roofing distributors operating in humid, tropical, and high UV-exposure markets. Built to perform under monsoon rains, coastal humidity, and extended sun exposure, our ASA-based resin tiles offer a reliable and cost-effective roofing solution for both residential and commercial applications across Southeast Asia, the Middle East, and Africa.
Our resin tiles are produced using advanced ASA (Acrylonitrile Styrene Acrylate) co-extrusion technology, which forms a protective outer layer resistant to color fading, corrosion, and surface degradation. The multi-layer structure delivers impact resistance, thermal insulation, and dimensional stability, making it suitable for long-span warehouses, factory buildings, community centers, and low-rise housing roofs. Product profiles include Spanish-style ASA roofing tiles, trapezoidal corrugated sheets, royal tile profiles, and classic wavy panel formats, with color selections developed based on regional aesthetic preferences and climate adaptation needs.
All Duolong roofing tiles are manufactured in ISO 9001-certified facilities, with batch testing and certification through CE and SGS to ensure weather resistance, UV durability, and mechanical strength. Our tiles are lightweight, easy to install, and designed to reduce subframe requirements and labor costs, which is particularly beneficial in time-sensitive or budget-constrained construction projects.
From urban housing developments to public sector roofing programs, Duolong’s resin tile range supports long-term performance with low maintenance demand and consistent visual finish. We maintain fixed production tooling and color control systems to ensure batch consistency and avoid mismatch during phased deliveries.
With Duolong Trade, buyers gain direct access to a dependable source of ASA synthetic resin roofing tiles backed by tested quality, export-ready documentation, and factory-direct pricing. Choose us as your long-term manufacturing partner—where durability, certification, and supply integrity are standard in every container.
ASA SPANISH ROOF TILE
ASA TRADITIONAL TYPE ROOF TILE
APVC ANTICORROSIVE COMPOSITE TILE
ASA SUPER WEATHERPROOF UPVCROOF SHEET
Why Choose Us
Factory-Backed Manufacturing Control
As a direct producer of ASA synthetic resin roof tiles, we oversee every step from raw PVC granule sourcing to final tile extrusion. This allows us to deliver stable quality, consistent sizing, and on-time shipment—ideal for bulk buyers managing roofing supply across multiple projects or regions.
Engineered for Tropical and Coastal Performance
Our co-extruded roofing tiles are designed to withstand heavy rainfall, intense UV exposure, and seasonal humidity across Southeast Asia, Africa, and the Middle East. From low-cost housing in Indonesia to municipal warehouses in Nigeria, our tiles have proven durability and low maintenance under severe weather.
OEM Customization for Bulk Projects
We provide full OEM services across our resin tile range, including color customization, tile profile design, logo stamping, and custom packaging. Whether you're launching a branded roofing product or bidding for a government-specified panel format, we tailor production to match your exact specification.
Efficient Global Dispatch System
With regional logistics partners and optimized container loading systems, we ship within 7–10 working days from factory to port. Our export team coordinates FCL/LCL arrangements, ensuring reliable dispatch of ASA resin roofing sheets, even during seasonal export surges.
Technical Support from Order to Installation
From panel overlap layout guides to on-site fastening advice, our team provides documentation and remote support for smooth implementation. We assist contractors, importers, and government project managers with real-time order tracking, fixing guidance, and batch performance reviews.
Compliance-Ready and Environmentally Aligned
Our resin tile products are manufactured under ISO 9001-certified processes, meet CE and SGS standards, and use recyclable materials. For clients seeking green building credentials or participating in state-funded construction, our documentation package ensures fast approvals and long-term compliance.
Your Ideal Choice
- Durability That Goes the Extra Mile
From coastal typhoons to inland heatwaves, every ASA synthetic resin roof tile we produce is built to perform. Resistant to UV radiation, heavy monsoon rain, and daily temperature swings, our co-extruded panels minimize cracking, color fade, and leakage—reducing maintenance costs and ensuring long-term roof integrity across tropical construction zones. - Versatile Applications Across All Project Types
Whether you’re outfitting government schools, upgrading factory warehouse roofing, or supplying low-rise residential homes, Duolong tiles adapt easily to diverse project environments. With a range of tile profiles, color options, and panel thicknesses, our plastic corrugated roofing sheets meet both functional requirements and architectural standards. - Customization That Matches Every Specification
Need Pantone-matched roof colors, custom tile lengths, or branding on packaging? We provide full OEM services for clients requiring tailored solutions—ideal for government bids, distributor labeling, or private project branding. Our PVC roofing panel customization options help your product stand out while staying compliant with structural codes and aesthetic expectations.
- Sustainable Roofing for Modern Construction
Manufactured under CE-certified processes with recyclable ASA and PVC resins, our synthetic roofing tiles help clients meet environmental targets without sacrificing performance. Ideal for government green-building initiatives and low-impact housing programs, Duolong’s eco-conscious product line supports long-term sustainability goals across public and commercial construction. - Logistics-Friendly Tile Design for Easy Handling
Each ASA resin roofing tile is engineered for lightweight transport and compact storage, significantly cutting freight costs and speeding up on-site installation. Whether you’re managing regional stock distribution or organizing phased project delivery, our co-extruded tile profiles reduce labor requirements and minimize damage risks during transfer. - Bulk Storage Capacity for High-Volume Projects
With more than 100,000 square meters of dedicated warehouse space, Duolong maintains steady stock of high-demand plastic roofing panels, enabling quick response to large or repeat orders. Our streamlined inventory management ensures that clients sourcing for multi-site projects or government tenders always have timely access to the materials they need to stay on schedule.
FAQ Questions and Answers
We produce a full range of synthetic resin roofing tiles, including ASA co-extruded roof tiles, corrugated plastic roofing sheets, and trapezoidal profile panels. Available formats include Spanish-style resin tiles, royal tile profiles, and PVC-based roofing panels with standard widths of 840mm and 1050mm. These roofing systems are developed for residential buildings, commercial warehouses, public facilities, and industrial projects operating in hot, humid, or storm-prone environments.
Yes. All Duolong ASA synthetic resin tiles are manufactured under ISO 9001-certified production systems and tested by third-party labs such as SGS. We provide CE certification, SGS test reports, and material performance data to support building code compliance and procurement submission in regulated markets, including Southeast Asia, the Middle East, and Africa.
Absolutely. Our ASA resin tiles are designed for high UV exposure, heavy rainfall, and thermal expansion stress. The ASA top layer ensures long-term color retention and resistance to solar degradation, while the inner PVC base delivers impact strength and waterproof performance. These features make our tiles ideal for coastal regions, monsoon zones, and equatorial climates.
Yes. We offer OEM and ODM services for private label clients, including Pantone/RAL color matching, custom tile lengths, and brand-specific embossing or packaging design. This service is widely used by distributors, project developers, and retail groups looking to align roofing supply with their brand identity.
Our standard lead time is 15–25 days, depending on product type and quantity. For common models like corrugated ASA roof sheets, we maintain inventory for quicker turnaround. Shipments are coordinated from major Chinese ports, with support for FCL and LCL loads, pallet optimization, and export packing supervision to ensure safe global transit.
Yes. Our resin roofing products are used in government housing projects, school buildings, industrial parks, and transportation hubs. We provide complete documentation—including fire resistance certificates, CAD drawings, and regional compliance support (e.g., QCVN, TISI, SNI)—to help clients meet public-sector procurement requirements.
Yes. Our logistics team handles customs clearance paperwork, packing lists, bill of lading, and certificates of origin. Tiles are packed with PE foam, reinforced straps, and palletized cartons. We offer CIF, FOB, or EXW terms to match your procurement preference across Southeast Asia, the Middle East, and Africa.
Yes. We regularly supply mass housing schemes, factory roof upgrades, and commercial warehouse developments. For bulk clients, we ensure consistent color control, timed production slots, and batch-matched shipments. Technical support includes layout planning, training, and onsite coordination via partner networks if required.
What are the key benefits of using synthetic resin roofing tiles over traditional roofing materials?
Synthetic resin tiles are lighter, easier to install, and more weather-resistant than clay tiles or metal sheets. They offer thermal insulation, noise dampening, and require less substructure support, reducing both material and labor costs. Their durability and low-maintenance nature make them ideal for cost-sensitive construction and remote site applications.
Yes. We offer free samples of our ASA roofing tiles, including profile sections and color swatches. Technical files include product data sheets, test results, and installation guides to help procurement managers and contractors evaluate material performance prior to full-scale ordering.
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 Synthetic Resin Roofing Tiles Manufacturer
Table of Contents
Bulk Pricing Advantages for Synthetic Resin Roofing Tile Buyers
Stable pricing structure designed for container-based procurement At Duolong, we work closely with roofing distributors, infrastructure contractors, and import buyers who manage long-term procurement plans across multiple markets. With over ten years of experience supplying ASA synthetic resin roof tiles, corrugated plastic panels, and PVC trapezoidal roofing sheets, we’ve built a bulk pricing system that prioritizes long-term consistency, freight efficiency, and full-container value—not short-term markdowns.
Standardized profiles for simplified quotation and repeatable fulfillment Our bulk pricing model is based on our high-demand roofing profiles, including 1050mm ASA Spanish-style roofing tiles, 840mm corrugated resin panels, and trapezoidal PVC roofing formats. These are optimized for regional warehouse storage, phased delivery, and site sequencing. Whether you’re supplying factory roofs or coordinating deliveries for public housing in tropical regions, we quote based on production batch alignment, pallet stacking density, and repeat scheduling stability.
Forward pricing contracts that protect against raw material volatility For clients managing national retail programs, multi-phase government construction, or large-scale tender projects, we offer forward-pricing agreements that stabilize costs over time. These agreements help procurement teams plan ahead, reduce exposure to resin price fluctuations, and stay within budget—especially for public-sector timelines or tender-driven purchasing windows.
Optimized export logistics for maximum square meter delivery value Beyond factory pricing, our export team improves cost efficiency by optimizing each container load. We balance tile lengths, color assortment, and roof panel mix to reduce empty space and improve packing ratios. We offer full support for FCL and LCL shipments, manage CIF and FOB options, and prepare all necessary customs documentation—helping reduce the landed cost per square meter for your synthetic resin roofing tiles.
Flexible planning for seasonal and deadline-driven demand To support clients with seasonal supply cycles or project delivery milestones, we provide early booking discounts, slot reservation, and multi-site order consolidation. Our high-capacity production system and stable output scheduling allow us to maintain quality while adjusting for high-volume commitments without delay.
A supply model shaped by real B2B project volume Our resin roof tile pricing system is the result of delivering to real projects: school expansions, industrial park builds, housing schemes, and commercial roofing upgrades. This experience allows us to offer more than just unit price advantage—we offer a structured supply framework backed by production expertise, export logistics, and document-ready support for global buyers in need of reliable and repeatable bulk shipments.
Consistent Product Specifications for Bulk Synthetic Resin Roofing Tile Orders
Standardized extrusion for dimensional and structural uniformity At Duolong, we recognize that batch consistency is critical for buyers managing multi-container procurement, phased construction schedules, or regional distribution networks. All of our synthetic resin roofing tiles, including ASA co-extruded tiles, corrugated plastic roofing sheets, and PVC trapezoidal panels, are produced under fixed specifications using calibrated extrusion molds, temperature-controlled co-extrusion lines, and automated cutting systems to ensure stable tile length, rib depth, overlap edge, and panel thickness across every order.
Repeatable molds and packing logic built for scalable supply Each profile—whether it’s a 1050mm Spanish-style ASA resin tile or an 840mm PVC corrugated panel—is backed by fixed die sets and verified pallet stacking protocols. This ensures that project contractors and roofing distributors can confidently re-order over multiple phases or distribute stock to different regions without running into fitment issues or coverage miscalculations.
Color control and shading consistency across production cycles We enforce strict color stability protocols, with inline pigment dosing systems and ASA top-layer calibration to maintain tone consistency across production batches. From brick red and ocean blue to slate grey and terracotta, our tiles hold visual continuity even when separated by weeks or transported across borders. This is essential for large roofing projects, where patchy shading can compromise aesthetic results and developer credibility.
Container labeling and documentation structured for B2B precision Every shipment from Duolong includes model-level pallet labeling, production batch IDs, color references, and optimized load maps. Our cartons follow strict stacking ratios to prevent deformation and ensure maximum TEU utilization. Clients working with bonded warehouses, multi-SKU inventory systems, or customs code classification benefit from our export documentation package, which reduces offloading confusion and speeds up port-side intake.
Controlled input, verified output—from resin to rooftop We start with virgin raw materials and maintain consistency through every production checkpoint—from resin blending formulas, extrusion speed settings, to final dimension and overlap tests. This structure eliminates unexpected size drift or color bleed, reducing installation error and avoiding costly on-site replacement. When your roofing program relies on speed and precision, product consistency becomes a foundational requirement—not a value-added feature.
Certified compliance and measurable consistency All of our roofing tiles are produced in ISO 9001-certified environments, with ongoing third-party validation through SGS, CE, and other accredited bodies. Our tiles comply with international benchmarks for dimensional stability, weather resistance, and surface reliability—helping clients meet tender qualification, inspection clearance, and installation performance goals without compromise.
With Duolong, each container replicates the last—so your procurement strategy can proceed with full control, project confidence, and supply chain alignment.
Long-Term Partnership Support for Stable Synthetic Resin Roofing Tile Supply
Structured supply for repeat procurement and regional distribution At Duolong, we provide long-term supply frameworks tailored for construction contractors, regional building material distributors, and international importers managing multi-phase or year-round demand for ASA synthetic resin roof tiles, corrugated PVC roofing panels, and plastic trapezoidal roof sheets. A stable and structured supply model is essential for meeting government tenders, project milestones, and continuous restocking in competitive markets.
Fixed capacity, locked pricing, and delivery priority Long-term clients benefit from reserved production slots, forward pricing agreements, and shipment priority during peak construction periods. Whether your team requires 1050mm ASA roof tiles for national housing programs or custom-length corrugated resin panels for logistics park development, we ensure consistency in production and batch coordination—eliminating sourcing delays and avoiding price shocks from fluctuating raw material markets.
Dedicated coordination from forecast to final delivery Each partnership is supported by a dedicated coordinator who manages order planning, batch tracking, and shipping documentation. From container slot sequencing to destination-specific packing optimization, we align all production steps with your site handover schedule to prevent material shortages during critical installation phases.
Advance production planning for volume-based projects For clients operating on quarterly or annual procurement cycles, we support advance booking of raw materials, extrusion line reservation, and packing resource allocation based on volume forecasts. This structure ensures your shipments are dispatched on time, even during export congestion or resin supply constraints.
Inventory and transport planning tailored to your network Our export team supports pallet planning, box configuration, and container optimization to help you manage incoming inventory with precision. Whether you’re allocating stock to bonded warehouses, splitting shipments across regional fulfillment hubs, or preparing multi-SKU warehouse rotations, our coordination reduces customs delays and improves warehouse flow.
Early access to performance upgrades and new releases Long-term clients receive priority access to next-generation formulations, including UV-enhanced ASA surfaces, reinforced core structures, and advanced heat insulation composites. We supply early test samples, performance data, and quotation support—helping you introduce new material options ahead of competitors and align with evolving market expectations.
A partnership built on resilience, not short-term sourcing Working with Duolong means more than a supply contract—it’s a resilient supply chain solution that reduces exposure to external disruptions, controls procurement risk, and safeguards your operational flow from first container to final installation. We’re not only your manufacturer—we’re your long-term partner in building a reliable, scalable, and future-ready synthetic roofing tile supply system.
How Synthetic Resin Roofing Solutions Help Reduce Overall Construction Costs
Lightweight design lowers structural load and framing cost Compared with clay tiles or steel sheets, ASA synthetic resin roof tiles offer significant weight advantages. The reduced roof load allows engineers to minimize truss complexity and cut down on steel or timber usage, especially in low-rise factories, prefab buildings, and government-funded housing projects, where framing cost is a key budget component.
Durable surfaces reduce repair frequency and lifecycle expense Our co-extruded roofing panels feature UV-stabilized ASA surfaces and corrosion-resistant PVC cores, built to withstand extreme heat, tropical humidity, and salt-laden coastal air. This durability eliminates the need for repainting, rust prevention, or early replacement—significantly reducing long-term maintenance costs in monsoon-prone regions or hot industrial zones.
Modular formats accelerate installation and reduce labor time Each Duolong roofing profile—whether it’s a 1050mm Spanish-style ASA tile or an 840mm trapezoidal PVC roofing panel—is designed with interlocking edges and fixed widths for quick overlap alignment. Crews cover large roof areas faster using fewer units, with minimal on-site cutting or reinforcement. This efficiency shortens installation timelines, lowers scaffolding expenses, and reduces overall labor cost—especially in multi-unit residential zones, rural schools, or public utility compounds.
Reduced handling risk during transport and site storage Traditional tiles often suffer from breakage or denting during shipping. In contrast, our plastic corrugated roof sheets maintain flexibility under changing temperatures and resist cracking during handling. This minimizes transport loss, returns, and insurance claims, while pallet-optimized packaging ensures better cubic utilization and fewer wasted shipments.
Energy efficiency and interior comfort as added value Duolong’s synthetic resin roofing materials contribute to better heat insulation and acoustic absorption, lowering indoor temperatures and reducing reliance on mechanical cooling. For non-air-conditioned spaces like community centers, warehouse offices, or school corridors, this provides tangible comfort improvements and indirect savings on energy consumption.
Total cost per square meter optimized from factory to roof By selecting Duolong’s bulk-ready synthetic resin roofing solutions, buyers gain not only a durable weatherproof system but a cost-efficient strategy—from procurement and shipping, to installation and long-term use. Our clients—from developers to government construction bureaus—rely on Duolong to help stretch budgets without compromising quality or lifespan.
Ensuring Smooth Customs Clearance and Compliance in Global Trade
Document-ready shipments for construction material importers When sourcing synthetic resin roofing tiles internationally, smooth customs clearance is just as important as product quality. At Duolong, we not only manufacture ASA roof tiles, corrugated plastic sheets, and PVC roofing panels—we coordinate the full export process to ensure your shipment clears customs quickly, meets import regulations, and arrives ready for deployment.
Complete export documentation prepared to meet country-specific requirements Our logistics team handles all international trade documents, including commercial invoices, packing lists, HS code declarations, and pallet breakdown reports. We provide certificates of origin, factory registration files, and customs-compliant inspection forms that meet the import requirements for public-sector projects, bonded warehouse entry, and bulk distribution centers across Southeast Asia, the Middle East, and Africa.
Certified product testing ensures tender compliance and customs entry Every export shipment is backed by third-party test reports, including SGS certification, CE documentation, and internal quality control records. Our ASA synthetic roofing tiles are validated for UV resistance, impact strength, tensile load, and weathering durability—documentation which supports infrastructure bidding, government project qualification, and port authority clearance.
Pre-shipment inspection and packaging verification for customs readiness Before loading, we perform a strict product-to-document inspection, checking pallet labels, barcode consistency, and shrink-wrapped carton integrity. Each tile carton is model-marked and color-coded to align with shipping manifests. This reduces inspection delays and minimizes the risk of detention or rework at port warehouses.
Supplementary compliance documentation for public procurement contracts For institutional or government-backed developments, we provide environmental compliance statements, tile composition sheets, and standard conformance declarations upon request. These help buyers satisfy local procurement audit trails and ensure full documentation from factory to final site inspection.
Freight partner coordination for accurate routing and customs filing Duolong works with licensed customs brokers and freight forwarders experienced in construction materials logistics. We support both FCL and LCL shipments, and arrange CIF or FOB dispatches through China’s key export terminals. Our partners handle advance declaration filing, port coordination, and final delivery scheduling with transparent tracking.
Ongoing export tracking aligned with project and warehouse timelines Throughout the export process, our team provides real-time updates, including container sealing status, departure confirmation, customs clearance milestones, and final documentation handover. This allows procurement teams to align roofing delivery with job site schedules, warehouse intake, and contractor mobilization without disruption.
At Duolong, we deliver more than certified resin roof tiles—we deliver a controlled, compliance-ready export experience that helps your shipment arrive complete, cleared, and ready for installation.
Flexible Order Quantities to Support Every Stage of Your Business
MOQ flexibility built for importers, contractors, and early-stage buyers At Duolong, we understand that not every buyer operates at full-container scale from the beginning. Whether you’re a new roofing material distributor, a contractor testing product fit for public bids, or an importer entering a new market, we support your growth with low minimum order quantities across our full line of ASA synthetic resin tiles, corrugated plastic roof panels, and trapezoidal PVC roofing sheets.
Pallet-based orders and mixed-profile shipping supported Our flexible MOQ policy allows clients to combine different roofing formats—such as 1050mm Spanish-style ASA tiles and 840mm corrugated roof sheets—into a single shipment. This helps reduce inventory risk, minimize warehouse strain, and align order volumes with your actual market movement or tender submission scale.
Consistent quality control regardless of order size Every order, no matter the volume, undergoes the same dimensional inspection, batch consistency testing, and moisture-protected packing protocol. Cartons are clearly labeled by model and shade, and loaded on stack-stable export pallets—ensuring your shipment moves smoothly through customs clearance, bonded warehouse intake, and job site allocation, even for partial-container or pilot orders.
Scalable production capacity to match business expansion As your business grows—from trial runs to regional distribution or multi-project coverage—Duolong adjusts production frequency and slot assignment to maintain reliable output without compromising lead time, shading uniformity, or overlap precision. This gives you room to scale without switching suppliers or introducing product inconsistency.
Ideal for test-phase procurement and new market validation Many of our clients begin with small trial batches—testing demand for grey ASA roofing panels, bundling resin sheets with hardware kits, or including samples in public bid submissions. Our MOQ model lets you respond to feedback, adapt SKUs, and manage cash flow without overstocking or freezing capital.
Small buyers receive full technical and export support We believe quality roofing supply should be accessible to all project scales—not just container-level buyers. That’s why our export team supports pilot-scale buyers, contractors with staggered build-outs, and buyers seeking sourcing diversification. Every shipment receives the same documentation: COs, HS codes, CE/SGS files, and export-ready packaging.
A growth-ready supply model with no entry barrier From your first pallet of ASA resin tiles to consolidated multi-SKU container deliveries, Duolong is equipped to grow with you. Our flexible production lines, export coordination, and supplier stability make us a practical long-term partner for any company building toward regional roofing supply capability—one project at a time.
Dedicated After-Sales Support for Reliable Project Execution
Site-ready technical support from shipment to final installation At Duolong, our responsibility extends beyond manufacturing and delivery. For every order of synthetic resin roofing tiles—whether for school roofs, factory sheds, government housing, or public clinics—we remain involved throughout the installation process. Our support helps contractors and project teams avoid costly installation errors and ensures our ASA resin tiles, trapezoidal panels, and corrugated plastic roof sheets perform to their full lifecycle.
Guidance for structural alignment and regional climate adaptation Once your shipment arrives, our after-sales team is available to provide direction on roof purlin spacing, panel overlap planning, and screw alignment under different climate conditions. Whether you’re installing in coastal humidity or inland UV-intensive zones, we guide your crew on panel anchoring and tile spacing techniques that prevent thermal distortion, uplift, and color fade.
Installation documentation tailored to each resin tile profile We supply practical resources including installation diagrams, edge sealing layouts, and fixing screw guides for all major profiles—from 1050mm ASA Spanish-style tiles to 840mm corrugated PVC sheets. These materials help avoid misalignment, cracking, and under-fastening, especially on arched steel trusses or prefabricated modular units.
Responsive issue resolution based on project-site experience If issues arise during or post-installation—such as tile distortion, substrate irregularity, or panel sound transmission—our service team provides practical correction plans based on real project feedback. We evaluate fixing methods, mounting hardware, and roof geometry to identify root causes and provide field-tested solutions.
Technical continuity across long-term and phased projects For repeat clients executing multi-phase roofing contracts, we create technical service logs, offer site-by-site adjustment plans, and maintain installation uniformity across regional warehouse builds, government campuses, or industrial compound developments. This minimizes performance gaps between stages and ensures visual cohesion across locations.
Training support for new territories and first-time installers For markets introducing Duolong roofing products or training new contractor teams, we offer remote guidance, video tutorials, and installer handbooks in support of local teams. In selected regions, we may provide on-site startup support via our logistics network or local technical affiliates, particularly when launching new ASA tile formats or co-extruded roofing systems.
Every shipment includes expert-backed follow-up and field reliability From palletized ASA roofing tile deliveries to custom-length plastic roof panel exports, all Duolong clients receive after-sales service structured for on-site execution. We work not only to deliver roofing materials, but to help complete projects with the confidence, consistency, and operational stability that global construction buyers expect.
Certification and Documentation Support for Government and Institutional Roofing Projects
Public project experience across Southeast Asia, the Middle East, and Africa At Duolong, we have years of experience supplying ASA synthetic resin roofing tiles, PVC co-extruded roof sheets, and corrugated plastic roofing panels to government housing projects, public school renovations, healthcare centers, and municipal infrastructure developments. We understand the documentation, compliance, and verification processes required in public-sector procurement frameworks and regulated tenders.
ISO-certified production and third-party verified performance All Duolong resin roof tiles are produced under an ISO 9001-certified manufacturing system, with batch-level testing for UV resistance, color stability, impact strength, and weathering durability. Independent validation is provided through SGS test reports and CE certifications, ensuring that our products meet the quality benchmarks required by national building authorities, construction ministries, and international funding agencies.
Comprehensive technical documentation tailored for public tenders We prepare a complete documentation package including commercial invoices, packing lists, HS code declarations, certificates of origin, and test reports for each roofing product supplied. For government bidding, NGO-led housing, and infrastructure programs, we also provide Declarations of Conformity, technical data sheets, EN/ISO references, and traceability records—all formatted to align with project submission checklists.
Specification coordination for tile design, installation, and appearance Each roofing tile profile—whether Spanish-style ASA tile or trapezoidal plastic sheet—is reviewed to ensure screw interface spacing, panel overlap compatibility, and color batch matching are aligned with the project specification manual. We work directly with project managers, procurement officers, and compliance reviewers to prevent mismatches during approval or site deployment.
Multilingual support and compliance file preparation For projects in Vietnam, Thailand, Indonesia, or Arabic-speaking countries, our export team provides documentation in localized languages, including bilingual product specs, labeling templates, and SGS summaries to reduce administrative rework. We also assist in coordinating pre-shipment inspections, SGS notarization, and factory audit files to meet state-level review requirements.
Track record of approved roofing materials in public infrastructure Duolong synthetic roofing tiles have been accepted in public projects including rural resettlement housing, village clinics, community centers, and school facility upgrades, where certified materials, long-term weather performance, and shade uniformity are mandatory for procurement eligibility.
When you partner with Duolong, you gain a manufacturer that not only delivers compliant roofing systems—but also supports every step of the government documentation process. From test certification to customs documents, we help ensure your public roofing project proceeds from bidding to installation without delay or documentation risk.
Proven Durability in Humid and High-Temperature Environments
Built for performance in tropical, coastal, and arid regions Duolong’s ASA synthetic resin roofing tiles and co-extruded plastic roofing sheets are specifically engineered to perform in the world’s most demanding environments. From humid lowland provinces to UV-intense desert interiors, our roofing systems have been field-tested across Southeast Asia, Africa, and the Middle East, where long-term resistance to climate stress is essential for public and industrial building applications.
ASA+PVC multilayer structure resists deformation, fading, and water ingress Each roofing tile features a multi-layer ASA+PVC co-extruded structure. The ASA top layer protects against solar radiation, acid rain, and discoloration, while the PVC structural base ensures dimensional stability and mechanical strength. This design prevents thermal warping, panel sagging, and moisture absorption, even under prolonged exposure to monsoons, heatwaves, and coastal humidity.
Internationally certified for real-world climate conditions Our resin tiles meet SGS-certified standards for impact resistance, color fastness, and water absorption below 0.1%. These benchmarks ensure that Duolong panels maintain function and appearance after daily sun/rain cycles, storm exposure, and long-term humidity saturation, making them suitable for low-cost housing, agricultural structures, coastal schools, and municipal warehouses.
Lightweight profile minimizes frame load and leakage risk In high-humidity zones such as coastal towns, mountain villages, or island projects, Duolong tiles resist mold formation, salt corrosion, and edge curling. Their lightweight design reduces structural load and limits risk of frame stress or installation failure under moisture infiltration or thermal expansion.
Detailed technical documentation for climate-adapted installation We supply product data on thermal expansion rates, fastener layout, roof pitch spacing, and heat-aging performance, helping installers ensure correct application in challenging environments. These materials are especially critical for government housing programs, NGO-funded construction, and industrial plant roofs in heat-intensive or wet regions.
With Duolong, you gain more than just weather-resistant synthetic roof panels—you gain a complete roofing solution designed for environmental stress, verified through laboratory data and field usage, and ready to protect your project under extreme heat, humidity, and seasonal change.
