Your Trusted ASA Coated PVC Roof Tiles Manufacturers
ASA Coated PVC Roof Tiles Manufacturers
At Duolong Trade, we manufacture a wide range of ASA coated PVC roof tiles engineered for long-term performance in tropical, coastal, and high-temperature construction environments. Our factory supplies building material wholesalers, global trading firms, government project contractors, and cross-border importers with reliable, export-ready roofing solutions. Designed to balance durability, aesthetics, and cost efficiency, our ASA PVC tiles are ideal for industrial buildings, institutional housing, commercial warehouses, and infrastructure projects.
We offer multiple types of ASA coated PVC roofing tiles tailored to meet diverse application demands. These include corrugated ASA PVC roof sheets for factory and warehouse coverage, Roman-style ASA coated tiles for government buildings or residential projects requiring decorative finishes, trapezoidal ASA PVC sheets for streamlined water runoff, and multi-layer ASA panels with UV-blocking properties for high sun-exposure zones. Each tile is formulated with a co-extruded ASA resin surface for superior color retention, weather resistance, and impact performance, making them a preferred alternative to metal or clay roofing in humid and corrosive environments.
Duolong operates under ISO 9001:2015-certified manufacturing protocols, using high-precision extrusion lines and thermal lamination equipment to ensure consistent product thickness, gloss uniformity, and load-bearing capacity. All ASA coated PVC tiles are tested and verified with CE, SGS, and other regionally recognized certifications to meet international standards for UV aging, flame retardance, water tightness, and mechanical stress. We offer flexible size configurations in thickness, width, profile, and color tone to accommodate your project specifications or regional preferences.
To meet the logistical needs of B2B buyers, we support both full-container bulk orders and mixed-model shipments for distribution and phased construction supply. For tender-based government contracts, Duolong provides a complete export documentation package, including technical data sheets, compliance reports, and packing declarations. OEM and private label services are available on request, with support for brand-specific packaging, logo embossing, and product barcoding for inventory management.
Partnering with Duolong Trade means choosing a factory that understands the operational pressures of large-scale procurement, fast-moving inventory, and multi-market supply chains. We deliver proven quality with stable lead times, responsive engineering support, and manufacturer-direct pricing. Whether you’re sourcing ASA PVC roof tiles for national infrastructure projects, regional wholesale programs, or private label distribution, Duolong is committed to delivering consistency—at scale, on time, and to standard.
ASA Coated Corrugated PVC Roof Tiles
ASA Coated Roman Style PVC Roof Tiles
ASA Coated Trapezoidal PVC Roofing Sheets
ASA Coated Hollow PVC Roof Panels (Heat Insulated)
Why Choose Us
Complete In-House Production
Duolong Trade manages the entire ASA coated PVC roof tile production line—from raw PVC resin blending and ASA surface co-extrusion to profiling, trimming, and pallet assembly. All processes are performed in-house under ISO 9001:2015 protocols to ensure consistent thickness, structural integrity, and precise shaping for both bulk export and mixed model orders.
Climate-Resilient Performance
Our ASA coated PVC tiles are engineered for long-term durability in harsh climates with high UV, humidity, and salt exposure. With a high-gloss ASA outer layer and a reinforced PVC base, the tiles offer excellent color retention, impact resistance, and leak-proof performance. Proven in use from warehouse roofs in Indonesia to municipal housing in Kenya.
Custom Fit Options
We provide multiple roofing profiles to meet diverse project needs, including ASA corrugated tiles, Roman profile sheets, trapezoidal wave panels, and hollow heat-insulating formats. All tiles can be customized by length, thickness, wave pitch, and color tone. Our OEM service includes branding, packaging, and barcode palletization for importers and retail groups.
Export-Ready Delivery
Every shipment is packed with reinforced edge guards, stretch film, and moisture-block pallets. We support both FCL and LCL export orders and deliver pre-labeled cartons with proper HS codes for seamless customs clearance at ports like Manila, Mombasa, and Jebel Ali. Standard lead time is 10–14 working days.
Installation Made Easy
Each shipment includes detailed installation manuals covering overlap configuration, screw alignment, slope adjustment, and purlin setup. For distributors and contractors, we also offer digital guides and printed instruction sheets to reduce on-site labor time and ensure consistency during mass installation.
Global Certification Coverage
Our ASA PVC tiles comply with CE, SGS, and ISO standards and are supported by full documentation including technical data sheets, UV aging test reports, MSDS files, and fire resistance validation. These certifications meet the needs of public procurement and regulated import markets worldwide.
Your Ideal Choice
- Proven in Harsh Climates
Duolong’s ASA coated PVC roof tiles are built to perform in extreme environments where intense sunlight, high humidity, and corrosive salt air are constant. With more than a decade of export experience, our products have been deployed on poultry farms in Indonesia, agricultural warehouses in Ghana, and housing initiatives in coastal Sri Lanka. The ASA coating ensures long-term color stability, UV resistance, and anti-crack performance even under prolonged tropical exposure. - Formats for Real-World Projects
We supply a full range of tile configurations for commercial and public sector use: ASA corrugated roof sheets for general roofing, Roman-style ASA PVC tiles for traditional architecture, trapezoidal ASA panels for modern industrial roofing, and hollow multilayer profiles for insulation-sensitive structures. All formats are designed to fit standard purlin systems used across Southeast Asia, Africa, and the Middle East—supporting schools, healthcare facilities, market stalls, and storage depots. - Flexible OEM Solutions
Our production lines support both standardized bulk orders and fully customized OEM programs. We provide Pantone color matching, custom length and rib profiles, logo embossing, and retail-ready packaging for regional distributors or public tender orders. Whether you're sourcing 3mm ASA trapezoidal panels for government clinics or lightweight Roman tiles for branded store chains, Duolong aligns output with local technical norms and branding needs.
- Certified and Sustainable
All tiles are produced in our ISO 9001:2015 facility and certified to CE and SGS standards for mechanical strength, UV aging, and chemical resistance. Manufactured from recyclable, non-toxic PVC with a low-VOC ASA surface, our roofing systems comply with government green procurement initiatives and environmental building guidelines common to infrastructure bids and urban development programs. - Built for Transport and Assembly
Duolong’s ASA PVC tiles are stackable, lightweight, and ship-ready. Every pallet is stabilized with edge guards, inner spacers, and wrapped to reduce friction damage in transit. The tile profiles are optimized for fast overlap alignment, screw point positioning, and quick field assembly—cutting labor costs in remote site construction and minimizing time spent per square meter installed. - Stable Supply with Flexible Delivery
With a rolling inventory of over 100,000 m² across product lines, we support urgent orders, split container loads, and long-term supply programs. From partial deliveries for phased developments to synchronized shipments across distributor networks, our logistics system helps you meet your delivery windows without overcommitting storage or risking material shortages.
FAQ Questions and Answers
We manufacture a complete range of ASA coated PVC roofing tiles, including corrugated ASA roof sheets, Roman profile ASA tiles, trapezoidal ASA PVC panels, and multi-layer hollow ASA-coated panels. These profiles are used extensively in warehouse facilities, agricultural buildings, school roofing projects, and infrastructure developments in Southeast Asia, Africa, and the Middle East. Standard widths include 840mm and 960mm, with thicknesses from 2.0mm to 3.5mm.
Yes. All ASA PVC roof tiles are produced in our ISO 9001:2015 facility and certified under CE, SGS, and region-specific programs like SONCAP, QCVN, and SIRIM. We provide full export documentation—including MSDS, Certificate of Origin, Inspection Reports, and fire/weather resistance data—supporting compliance for public procurement and national infrastructure projects.
Our ASA-coated tiles are engineered for long-term exposure in tropical, coastal, and high-UV regions. The ASA resin layer protects against solar degradation and color fading, while the PVC base provides impact resistance and dimensional stability. These tiles are used on poultry farms in Vietnam, warehouse roofs in Nigeria, and low-cost housing programs in Indonesia.
Yes. Duolong offers full OEM/ODM services for ASA PVC roofing panels. This includes customized tile colors, embossed logos, special length or thickness adjustments, and branded packaging. We support both government tender customization and private distributor programs—adapting product output to meet local specifications, brand identity, and logistics needs.
Lead time generally ranges from 10–20 working days, depending on the order volume and tile type. For high-demand formats like ASA corrugated tiles (840mm width) or Roman-style ASA tiles, we maintain inventory for faster release. Orders ship via Ningbo, Shanghai, or Qingdao, with reinforced packaging using PE wrap, edge protectors, and moisture-block pallets.
Absolutely. Our ASA PVC roofing systems are widely applied in school renovations, government housing schemes, market shelters, and community storage centers. We provide wind uplift test reports, fire retardant certifications, installation diagrams, and technical datasheets to help clients meet regional bidding and regulatory requirements.
We provide a complete export support package, including commercial invoice, packing list, bill of lading, CO (Certificate of Origin), and SGS inspection reports upon request. For cross-border buyers, we also offer assistance with FCL/LCL consolidation, custom pallet stacking, and container loading optimization to reduce shipping risk and improve efficiency.
Yes. Our monthly output exceeds 350,000 square meters, covering all standard and custom ASA PVC profiles. We maintain stock for phased delivery contracts and coordinate shipments for multi-site construction projects. All tiles are batch-controlled for uniformity in color, thickness, and rib design, ensuring quality continuity across repeated orders.
Compared to metal roofing, ASA PVC tiles are lighter, non-corrosive, and easier to install. Unlike clay tiles, they are impact-resistant and do not absorb moisture—making them ideal for fast-paced installations, remote locations, or high-humidity regions. ASA tiles also offer superior UV stability, color retention, and noise reduction on large-surface roofing projects.
Yes. We provide physical samples of ASA-coated PVC tiles, profile cutouts, and color swatches upon request. We also supply full technical data sheets, installation manuals, and performance test reports to assist with specification matching and tender submissions. Samples are dispatched via FedEx/DHL within 3–5 working days.
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 Coated PVC Roof Tiles Manufacturer
Table of Contents
Bulk Pricing Advantages for ASA Coated PVC Roofing Tile Buyers
Stable Pricing Structure for Long-Term Procurement Duolong offers a structured pricing system specifically tailored for ASA coated PVC roofing tile buyers managing large-scale distribution, container-level shipments, or phased project implementation. Our pricing remains insulated from short-term raw material swings, providing government contractors, infrastructure developers, and wholesale distributors with stable quotation terms. This supports budget preparation, public bidding accuracy, and long-term margin control.
Fixed Product Profiles for Streamlined Quotation We base all price quotations on a standardized range of ASA roofing tiles—including 840mm ASA corrugated sheets, 1050mm trapezoidal ASA-PVC panels, and dual-layer ASA synthetic resin roof tiles with fixed thickness grades from 2.5mm to 3.5mm. This allows procurement teams to receive fast, profile-specific quotes and eliminates ambiguity in reorder cycles, especially when supplying multi-site construction projects or repeat municipal tenders.
Forward Contract Options for Public Infrastructure Projects For institutional buyers managing budget-sensitive programs such as school roofing, social housing, or community warehouse upgrades, we provide forward contract pricing options. These agreements allow buyers to lock in square-meter costs for 3–6 months—ensuring stable pricing for project submissions, BOQ pre-approvals, and staged construction rollouts. It’s a reliable tool for developers working within fixed government fiscal windows.
Container Optimization to Reduce Landed Cost per m² Beyond unit pricing, Duolong helps reduce your true landed cost per square meter through efficient container loading. By standardizing stacking heights, bundling by color series, and optimizing pallet density, we increase cubic space utilization per 20ft/40ft container. This directly reduces per-unit freight cost and minimizes product shifting or edge damage in transit. We offer full coordination on FOB, CIF, or EXW terms with detailed documentation including packing lists, CE/SGS certificates, and HS code declarations.
Production Scheduling that Matches Project Phases Our production capacity is matched with planning tools that allow for advance batch reservation, color continuity, and site-split delivery support. This is critical for contractors managing multiple work zones or operating under tight seasonal build schedules. Whether shipping ASA tiles to a port in Manila, Dakar, or Colombo, we ensure delivery alignment across regional project nodes.
A Procurement Model Aligned with Execution Needs At Duolong, we price with your delivery success in mind—not just the sales order. Whether you’re delivering corrugated ASA panels to a logistics park or sourcing trapezoidal ASA roofing tiles for a regional housing mandate, our bulk pricing model comes with scalable production, batch consistency, and global export compliance. You get more than a number—you gain a reliable supply structure that’s field-ready and deadline-aware.
Consistent Product Specifications for ASA Coated PVC Roof Tile Orders
Standardized Extrusion Ensures Dimensional Accuracy on Every Site All ASA coated PVC roof tiles produced by Duolong are extruded using fixed-calibration tooling and temperature-controlled die systems. Whether it’s 840mm corrugated ASA sheets or 1050mm trapezoidal ASA-PVC panels, every tile maintains strict tolerances in thickness, rib pitch, wave height, and width. This level of consistency simplifies alignment during installation and reduces fitment error across wide-span roofs—critical in fast-moving public sector builds, warehouse expansions, and institutional renovation projects.
Locked-in Profile Molds Support Reorder Precision We maintain a defined catalog of fixed die profiles for ASA composite corrugated roof tiles, including standard pitches and crest dimensions. This ensures repeat orders remain identical—even months apart or across different project phases. For distributors supplying public housing initiatives or contractors operating across regional job sites, this eliminates the risk of mismatched panels or field modifications between shipments.
Controlled Color Matching for Visual Consistency on Multi-Structure Projects Each ASA roof tile color batch is formulated to locked pigment ratios, using Duolong’s automated color blending and ASA surface co-extrusion systems. Popular regional colors like terracotta red, charcoal grey, and marine blue are produced with minimal variation—even across different containers or production months. This prevents shade inconsistency in phased construction and ensures aesthetic alignment for government buildings, multi-unit developments, and retail franchise roofs.
Palletized Shipments with Full Traceability for Bulk Buyers All ASA PVC roof tile shipments are prepared with traceable packaging—each pallet includes batch numbers, thickness specs, profile IDs, and color codes. This improves warehouse organization, simplifies customs inspection, and supports site unloading for decentralized distribution or bonded zone storage. It also enhances SKU management for buyers handling multi-color, multi-format regional supply programs.
Material Quality Maintained from Resin to Final Tile Every tile is produced from virgin PVC resin blended with ASA surface granules and enhanced with anti-UV, anti-aging, and fire-retardant additives. The extrusion process includes in-line thickness scanners, pitch sensors, and cooling channel regulation—ensuring zero warping, no edge distortion, and stable bonding under long-term outdoor exposure. This level of material control is vital for public contractors who operate under performance guarantees or national building inspection regimes.
Internationally Certified and Government-Approved Production Process Duolong’s ASA PVC roof tile production is certified to ISO 9001:2015, with every product line tested by third-party agencies including SGS and CE-accredited labs. Our tiles meet specifications for mechanical strength, weather endurance, thermal expansion tolerance, and chemical exposure resistance. These credentials allow direct submission in infrastructure tenders, school renovation bids, and municipal housing contract proposals.
Repeatable Output for High-Efficiency Onsite Installation Whether you are supplying corrugated ASA tiles for a community roofing scheme or installing trapezoidal ASA panels on industrial facilities, Duolong ensures each batch mirrors the last. No recalibration, no field rechecking—just install and proceed. For B2B clients handling multi-location rollouts, framework procurement, or annual tenders, our product uniformity translates directly to time savings and reduced site error.
Long-Term Partnership Support for ASA Coated PVC Roof Tile Supply
Structured Supply for High-Frequency Orders and Cross-Border Distribution At Duolong, we support clients whose operations require more than one-time delivery. Our structured long-term supply framework is tailored for distributors, public contractors, and regional importers managing scheduled or recurring shipments of ASA coated PVC roofing tiles. Whether supplying corrugated ASA sheets to inland warehouses or fulfilling phase-based shipments of trapezoidal ASA-PVC panels, we coordinate production and delivery to match the pace of your procurement calendar.
Reserved Capacity and Price Stability for Core Roofing Profiles To reduce exposure to raw material volatility and seasonal supply chain pressure, we offer reserved production slots and forward contract pricing for frequently ordered profiles. This includes 840mm ASA corrugated roof tiles, 1050mm trapezoidal ASA-PVC panels, and custom-length composite sheets with ASA outer layers. Our locked-rate agreements help stabilize budgeting for public housing projects, regional infrastructure builds, and school renovation programs.
One-on-One Coordination from Quotation to Container Loading Each long-term partnership is supported by a dedicated export coordinator who manages demand forecasting, lead time alignment, and full documentation flow. From pallet optimization and label accuracy to customs-ready declarations and multi-port loading schedules, our team ensures your material arrives in sync with jobsite schedules—whether destined for direct site delivery or bonded zone storage in multi-country operations.
Production Planning Aligned with Institutional Procurement Cycles We work with government suppliers and contractors to plan manufacturing output in line with annual budget release schedules and tender-based procurement programs. Our systems enable advance resin allocation, batch-controlled extrusion, and pre-labeled inventory storage, ensuring your ASA composite roofing panels are available when your sites move into execution.
Logistics Configured for Regional Rotation and Volume Efficiency For buyers handling container shipments to multiple countries or coordinating staggered deliveries, Duolong offers stacking optimization, mixed-SKU labeling, and model-based container separation. This improves last-mile efficiency for resellers, bonded storage managers, and large-scale buyers serving multi-region retail channels or government frameworks.
Priority Access to Technical Support and Upgraded Roofing Options Our long-term clients benefit from early access to product updates and new ASA-PVC roofing tile models—including enhanced UV-protected ASA layers, heat-deflective surfaces, and high-thickness industrial-grade panels. We provide detailed installation guides, performance test reports, and sample kits to support your product presentations, technical submittals, and architectural approval workflows.
Partnership-Based Manufacturing with Certified Export Reliability Working with Duolong means more than placing orders—it means aligning with a manufacturer focused on continuity. We guarantee product consistency, batch traceability, and international certification compliance (ISO 9001:2015, SGS, CE) across all orders. For organizations managing multi-region procurement, framework agreements, or government development contracts, we provide supply stability that lets you build with confidence—from bid to rooftop.
How ASA Coated PVC Roofing Helps Reduce Construction Costs
Lightweight Panels Lower Structural Load and Steel Consumption Compared to ceramic tiles or galvanized roofing sheets, ASA coated PVC roof tiles are significantly lighter in weight. This enables engineers to reduce the volume of structural steel and concrete needed for support—particularly in low-rise warehouses, community housing units, or light industrial developments. Many of our partners report up to 20% savings in subframe material cost when switching from traditional roofing to ASA corrugated roof panels.
Weatherproof Material Reduces Long-Term Maintenance Expenses Each Duolong tile features a durable ASA surface layer fused to a PVC base, forming a co-extruded composite that resists UV damage, corrosion, salt spray, and acid rain. Unlike metal that rusts or tiles that crack under thermal stress, our roofing products require no repainting, waterproof recoating, or early replacement—making them ideal for public schools, agricultural sheds, or storage buildings in high-humidity environments.
Standardized Roofing Profiles Cut Installation Time Duolong’s ASA roofing sheets—including 840mm corrugated formats and 1050mm trapezoidal profiles—are manufactured with fixed rib spacing, smooth edges, and uniform pitch. These features allow for precise overlap and alignment, reducing on-site adjustment. For projects working under compressed schedules or with limited labor, this translates into faster installation, shorter scaffold use, and fewer man-hours per square meter.
Impact-Resistant Packing Minimizes Site Breakage and Reordering Costs Each shipment of ASA composite roof panels is protected with PE film, edge boards, and moisture-controlled palletization. Unlike brittle ceramic or heavy concrete tiles, our flexible PVC-based sheets absorb vibration during container loading and inland transport. This reduces the risk of cracked tiles and on-site loss, which is especially critical for overseas buyers, multi-country shipments, or remote project deliveries.
Thermal and Acoustic Benefits Reduce Ongoing Energy Spend Duolong’s ASA-PVC roof panels offer basic insulation and sound dampening—helping to regulate indoor temperature and reduce external noise. In settings such as classrooms, retail structures, or livestock shelters, this lowers air conditioning load and improves occupant comfort without needing additional insulation layers. Over the life of the building, clients observe lower operational energy bills and improved end-user satisfaction.
End-to-End Savings from Procurement Through Project Completion From the moment tiles leave our production line to the moment they are installed on-site, every feature of Duolong’s ASA coated PVC roof tiles is engineered to deliver value. Lighter loads reduce foundation requirements, faster installs lower labor spend, and long-term durability slashes maintenance costs. Combined with efficient shipping and standardized reordering, our roofing systems help contractors and procurement managers deliver high-performance roofs—on budget, on schedule, and without costly surprises.
Ensuring Smooth Customs Clearance and Compliance in Global Trade
Export-Ready Shipments for ASA Coated Roofing Tile Buyers At Duolong, we support global construction supply chains with fully compliant exports of ASA coated PVC roofing tiles. Whether supplying corrugated ASA roof sheets to bonded warehouses or delivering trapezoidal ASA-PVC panels to government-funded sites, we ensure every shipment is properly packed, documented, and aligned with the customs standards of your destination country. From Southeast Asia to Africa, our export team helps buyers minimize clearance delays and meet internal compliance requirements.
Accurate Documentation for Country-Specific Customs Standards Each shipment includes a full export file tailored to the requirements of local customs authorities. We provide commercial invoices, HS code declarations, packing lists, certificates of origin, and material data sheets covering PVC and ASA composition. Documents are issued in formats accepted at key entry ports such as Port Klang, Jebel Ali, Dar es Salaam, and Ho Chi Minh City—helping ensure frictionless import processes and clear audit trails for both public and private-sector procurement.
CE and SGS Certifications for Public-Sector Approval All ASA-PVC roofing panels from Duolong are backed by CE certificates, SGS test reports, and ISO 9001:2015 production records. These files verify mechanical durability, UV protection, and temperature resistance—essential for customs inspection, public tender participation, and construction material registration under government or infrastructure development programs.
Pre-Shipment Quality and Label Control Before sealing containers, we conduct a full pre-shipment verification. Every pallet of ASA corrugated tiles or trapezoidal roofing panels is checked against the packing list for item count, color tone, size, and thickness. Each unit is stacked on reinforced pallets, stretch-wrapped, and barcoded for accurate destination inspection. This ensures your declared specs match your delivered goods, reducing the risk of customs holds or repacking penalties at port.
Compliance Documents for Government or Donor Projects For public procurement, we supply additional declarations such as fire-retardant test results, low-VOC statements, recyclable material certification, and material safety data sheets (MSDS). These are available in English, Vietnamese, or Arabic, helping buyers prepare technical files for school roofing bids, NGO shelter projects, and municipal housing initiatives.
Certified Freight Channels and Coordinated Loading Duolong manages FCL and LCL exports under FOB, CIF, or EXW terms via Shanghai, Qingdao, and Ningbo ports. Our logistics team works with bonded freight agents and customs brokers experienced in moving construction-grade ASA-PVC roofing sheets. From container planning to overseas handover, we synchronize every step with your intake schedule to keep your supply chain on time.
Real-Time Updates and Transparent Documentation Access Clients receive real-time shipping updates, including ETD/ETA tracking, customs clearance status, and proof of dispatch. We maintain a shared digital folder with scanned invoices, declarations, and packing slips, helping your team coordinate distribution and reduce documentation-related delays across customs, finance, and warehouse departments.
Not Just a Manufacturer—Your Full Export Compliance Partner Sourcing ASA coated PVC roofing tiles from Duolong means more than receiving product—it means receiving a shipment that arrives certified, labeled, documented, and ready for use. Our compliance system is why contractors, importers, and public procurement buyers across emerging markets choose Duolong for dependable, regulation-aligned delivery from factory to final destination.
Flexible Order Quantities to Support Every Stage of Your Business
Low MOQ Options for Distributors, Contractors, and Regional Buyers At Duolong, we recognize that not every client begins with container-scale purchasing. Whether you’re launching ASA coated PVC roof tiles in a new territory, preparing product samples for a government school roofing bid, or supplying limited-phase housing development, we support low minimum order quantities across standard profiles like ASA corrugated sheets, trapezoidal ASA panels, and dual-layer ASA roofing tiles.
Mixed Model Shipments for SKU Testing and Project Variety Clients may consolidate different formats—such as 840mm ASA corrugated panels, 1050mm trapezoidal ASA-PVC tiles, or translucent ASA daylight roof sheets—into a single shipment. This enables distributors to test demand, contractors to meet diverse tender specs, and project developers to validate product fit before scaling. Palletized by profile and stacked for secure LCL handling, our mixed orders are optimized for safe arrival and fast sorting.
Same Factory Standards, No Matter the Volume Whether you purchase two pallets or twenty containers, all ASA PVC roofing tiles are manufactured using ISO 9001:2015-certified extrusion systems. Every batch is checked for rib alignment, ASA adhesion, thickness tolerance, and UV aging resistance. Export documents including CE certification, SGS test reports, and material sheets are prepared for every load—ensuring compliance even in low-volume or trial-phase deliveries.
Seamless Transition from Pilot Orders to Large-Scale Projects We support your growth across procurement stages. Clients who start with sample-based orders for trapezoidal ASA panels or ASA-coated twin-wall roofing tiles can scale confidently—knowing that every subsequent shipment will match the geometry, finish, and ASA surface tone of the original batch. This avoids inconsistencies that disrupt multi-phase infrastructure projects or public-sector supply contracts.
MOQ Flexibility for Field Validation and Early Bidding Our flexible quantity system is ideal for test installations, mock-up buildings, or pilot documentation packages. Smaller orders allow you to assess site handling, installability, and overall project integration before committing to high-volume procurement. This supports agile bidding and responsive adaptation to evolving project scopes.
Full Export Documentation for LCL and Trial Loads Even our smallest shipments come complete with all necessary export files: commercial invoice, packing list, HS code declaration, certificate of origin, and SGS/CE documentation. We ship under FOB, CIF, or EXW terms from Qingdao, Shanghai, or Ningbo, and coordinate with bonded forwarders to ensure small-volume orders clear customs as efficiently as container loads.
A Roofing Supply System That Grows with You From your first trial shipment of ASA coated roofing tiles to full-scale regional supply of corrugated ASA roof sheets, Duolong offers a scalable, structured supply model. We provide consistency in profile, packaging, documentation, and coordination—so your business can expand with confidence, knowing each order will meet the same high standard of export readiness and field reliability.
Dedicated After-Sales Support for Reliable Project Execution
Installation Guidance That Continues Beyond Delivery At Duolong, supplying ASA coated PVC roofing tiles is only the first step. Every batch—whether corrugated ASA roof panels, trapezoidal ASA-PVC tiles, or twin-wall ASA insulated sheets—comes with complete technical support to ensure installation efficiency. From municipal depot construction to rural housing initiatives, we provide layout diagrams, fixing instructions, and remote advisory for contractors, importers, and public project managers.
Project-Specific Fixing Advice for Structural and Climate Factors Roof slope, purlin spacing, and local weather patterns all affect final roof performance. That’s why our team delivers profile-specific guidance, such as recommended support spacing for 840mm ASA corrugated sheets, screw types for high-humidity zones, and thermal expansion allowances for sun-exposed installations. These recommendations help prevent long-term failure and ensure field teams install with precision and confidence.
Clear Documentation Bundled with Each Roofing Profile Each order includes dedicated installation manuals based on tile profile and project type. Whether using 960mm trapezoidal ASA panels or custom-length corrugated roof tiles, clients receive printed and digital versions of fixing guides, overlap schemes, wind-load anchoring charts, and torque recommendations. These documents reduce misalignment and time loss at job sites—especially valuable for institutional construction and standardized modular rollouts.
Real-Time Support for On-Site Installation Issues If issues arise on-site—such as tile curvature, frame misfit, or alignment gaps—our support team offers field-proven solutions based on regional project experience. We’ve assisted roofing crews in Malaysia, Ghana, the UAE, and other markets in correcting common mistakes before they compromise material lifespan or construction timelines. Our practical input helps minimize rework and protect your delivery schedule.
Consistent Setup for Multi-Site and Multi-Phase Projects For buyers managing multi-location rollouts or phased public-sector construction, we maintain records of installation direction, fastening system preferences, and panel orientation data. This continuity ensures visual and technical consistency across campuses, public housing clusters, or utility facilities—without requiring repeated contractor retraining between phases.
Training Tools for Market Entry and First-Time Users For clients new to ASA coated PVC roofing systems, we offer video tutorials, step-by-step manuals, and live technical orientation. Whether you’re preparing installation for a tender mock-up or training distributor-side teams for resale, our materials shorten the learning curve and raise installation quality. We also coordinate technical walk-throughs during initial deliveries in select regions.
Hands-On Support for Every Order, Large or Small From sample shipments to full-container orders, Duolong supports every client with the same commitment to installation success. With the right tools, clear documentation, and responsive service, we help your teams install ASA corrugated roofing sheets or trapezoidal ASA panels with speed, accuracy, and reduced waste—making your projects more reliable from the first screw to the final ridge cap.
Certification and Documentation Support for Government and Institutional Roofing Projects
Proven Experience with Certified Public Sector Roofing Supply Duolong has supported government and institutional construction across Southeast Asia, the Middle East, and Africa with ASA coated PVC roofing tiles, including corrugated ASA sheets and trapezoidal ASA-PVC roof panels. Our projects span public school rehabilitation, social housing, healthcare shelters, and post-disaster resettlement programs. We understand the approval pathways, document formats, and technical requirements of public procurement, ensuring that each order moves from prequalification to final acceptance with full documentation alignment.
ISO-Certified Production and Third-Party Testing for Each Batch All ASA-PVC roofing panels are produced under ISO 9001:2015 management systems. Every lot is verified for thickness tolerance, rib consistency, ASA surface bonding, and UV/weather resistance. We provide SGS reports, CE conformity certificates, and traceable factory testing records—enabling you to meet engineering audits, national procurement protocols, and donor-funded infrastructure standards.
Complete Documentation Set for Tender and Export Approval Each shipment comes with a full export documentation package, including commercial invoice, HS code declaration, packing list, certificate of origin, and CE/SGS validation. For institutional bids and public tenders, we also prepare Declaration of Conformity, ISO-based technical datasheets, ASA-PVC material composition files, and spec compliance charts matched to standard government tender forms—streamlining the evaluation process and reducing submission revisions.
Specifications Matched to Government Engineering Requirements We ensure that our 840mm ASA corrugated roof tiles and 960mm trapezoidal ASA panels align with bill of quantities (BOQs) and government engineering manuals. From overlap width and purlin spacing to panel thickness and anchoring points, our profiles are calibrated to help contractors avoid spec rejection or on-site rework—especially in educational buildings, rural housing, and logistics roof builds under government supervision.
Bilingual and Regional Compliance Support Across Markets To support localization, our compliance team delivers bilingual documentation packages in English–Vietnamese, English–Arabic, or English–Thai, and adapts reports to regional formats. We assist with CE to local certificate conversion, SGS report integration, factory license filings, and raw material declarations to match country-specific public procurement templates and audit requirements.
Installation Record in Government and Donor-Led Roofing Projects Duolong ASA PVC roof tiles have been approved and installed in school roofing programs, municipal warehouse developments, and NGO-funded housing schemes where certified material, traceability, and format-ready documentation were non-negotiable. We’ve worked directly with government buyers, national engineering bureaus, and UN-partnered contractors, ensuring our materials passed inspection checkpoints and met funding agency submission expectations.
A Manufacturer Built for Public Procurement and Institutional Delivery Choosing Duolong means choosing a compliance-ready roofing tile partner. With CE-certified ASA PVC roofing panels, verified SGS test results, ISO-backed production, and region-specific tender documentation, we support smooth submission, fast material release, and technical acceptance across public bids, donor-funded infrastructure, and institutional construction projects—delivered with consistency, accountability, and full document traceability.
Proven Durability in Humid and High-Temperature Environments
Built for Tropical, Coastal, and Heat-Intensive Construction Conditions Duolong’s ASA coated PVC roofing tiles are designed for real-world durability in climates where conventional materials fail. From Southeast Asia’s monsoon zones to West African salt-air industrial sites, our corrugated ASA roof panels and trapezoidal ASA-PVC roofing sheets maintain strength, shape, and color stability under persistent UV radiation, high humidity, and elevated roof surface temperatures.
Co-Extruded ASA Surface for Long-Term Weather Resistance Each tile features a dual-layer co-extrusion: a high-strength PVC base for rigidity and load bearing, combined with an ASA outer layer enriched with UV stabilizers and anti-aging agents. This structure prevents surface chalking, color fading, and embrittlement—common failure points in high-sunlight and moisture-heavy zones. Whether applied to school roofs, health centers, or agricultural warehouses, Duolong’s ASA-PVC tiles provide lasting coverage in harsh outdoor exposure.
Tested Under Accelerated Climate Simulations for Reliability Our ASA coated tiles are independently tested under accelerated weathering conditions that simulate years of tropical exposure. Performance validation includes: low water absorption (<0.1%), color gloss retention after 1,000+ hours UV, and impact resistance under both dry heat and damp cycles. These figures back up real-world results seen in installations from Bangladesh to Nigeria.
Lightweight Panels That Reduce Frame Stress and Condensation Risk Unlike metal or ceramic options, Duolong’s ASA corrugated roofing tiles are both lightweight and non-porous, minimizing stress on lightweight frames and reducing trapped moisture that leads to mold or corrosion. This makes them ideal for steel-truss prefabricated structures, timber-framed buildings, and low-cost public shelters where frame protection and longevity are critical.
Installation Guidance Tailored to Humid Climate Performance Each shipment includes installation instructions calibrated for high-humidity and high-heat construction. Guidance includes purlin spacing for panel support, screw alignment under thermal load, and expansion gaps to prevent buckling. These measures help contractors achieve structural consistency—even in environments with sudden downpours, high UV, and wind uplift pressure.
A Proven Roofing Material for Demanding Environmental Conditions Working with Duolong means choosing roofing that has been proven on-site—not just promised in catalogs. Our ASA coated PVC roofing systems continue to protect public buildings, warehouse facilities, and utility infrastructure across humid, hot, and coastal markets—delivering the color stability, installation reliability, and long-term performance that institutional buyers and contractors demand.
