Your Trusted XPS Rigid Insulation Board Manufacturers
XPS Rigid Insulation Board Manufacturer
At Duolong Trade, we manufacture XPS rigid insulation boards engineered to meet the demands of building material wholesalers, regional construction suppliers, project contractors, and cross-border importers operating in tropical, humid, and high-temperature regions. Designed for superior thermal performance and moisture resistance, our extruded polystyrene (XPS) insulation boards provide durable, lightweight, and energy-efficient solutions for residential, commercial, and industrial applications across Southeast Asia, the Middle East, and Africa.
Our XPS rigid insulation boards are produced through advanced extrusion technology that creates a closed-cell structure, ensuring exceptional compressive strength, low water absorption, and long-term R-value stability. This makes them ideal for use in below-grade foundations, roof insulation systems, cavity walls, and under concrete slabs where high performance under load is critical. Popular product options include Type IV high-density XPS boards (25 psi), foil-faced XPS roof insulation boards, ship-lap edge XPS panels, and tongue-and-groove XPS boards optimized for seamless installation and thermal bridging prevention in large-scale construction projects.
Manufactured in ISO 9001:2015-certified facilities, each batch of XPS rigid boards undergoes rigorous SGS and CE-compliant testing to meet international standards for thermal insulation and structural performance in demanding climates. With a range of thicknesses (from 25mm to 100mm) and densities available, our insulation boards are designed to simplify transport and installation while ensuring consistent performance throughout large procurement orders.
From industrial cold storage warehouses and commercial high-rises to government infrastructure projects and residential housing developments, Duolong’s XPS rigid insulation board range supports OEM/ODM private labeling, custom packaging, and multilingual technical support for engineering and procurement teams. Our export expertise includes containerized shipping solutions that minimize transit damage and ensure timely delivery, while our team provides installation datasheets and guidance in English, Thai, and Vietnamese to support regional distributors and contractors.
When you partner with Duolong Trade, you gain a manufacturer that delivers not only high-performance XPS rigid insulation boards but also reliable supply chains, full export compliance documentation, and competitive factory-direct pricing. Let us help you deliver durable, energy-efficient, and climate-adapted insulation solutions trusted by distributors, builders, and government buyers across Southeast Asia and beyond.
ANTI CRACKING BOARD
BACKING BOARD
MOISTURE-PROOF BOARD
WATERPROOF FLOORDRAIN BASE PLATE
Why Choose Us
End-to-End Manufacturing of XPS Rigid Insulation Boards
At Duolong Trade, we produce XPS rigid insulation boards for wholesalers, contractors, and importers across Southeast Asia, the Middle East, and Africa. Our process includes extrusion, shaping, surface treatment, and strict quality checks to ensure stable thermal performance and compressive strength. These boards are ideal for residential, commercial, and industrial construction needs.
Built to Perform in Tropical and Humid Conditions
Our XPS insulation boards perform reliably in regions with high humidity, heavy rainfall, and intense heat. The closed-cell foam structure provides excellent moisture resistance, long-lasting R-values, and load-bearing strength. Applications include below-grade foundations, roof insulation, cavity walls, and under-slab installations.
OEM Solutions for Diverse Applications
We offer OEM services for foil-faced XPS boards, ship-lap panels, and tongue-and-groove boards. Options include custom thickness, density, and private-label branding to meet public tenders and retail market needs.
Factory-Direct Logistics and Optimized Packing
Our export operations deliver within 10 to 15 working days. Each shipment uses reinforced packaging to reduce transit damage and maximize container space, helping lower logistics costs for large-scale orders.
Certified Quality for International Standards
Manufactured in ISO 9001:2015-certified facilities, our XPS boards comply with SGS and CE standards. This ensures they meet global requirements for compressive strength, water resistance, and thermal efficiency in government and commercial projects.
Technical Support for Smooth Project Execution
We provide technical datasheets, installation manuals, and multilingual assistance in English, Thai, and Vietnamese. Our team supports contractors and importers through every stage—from tender submissions to on-site application—ensuring optimal insulation performance.
Your Ideal Choice
- Engineered for Thermal Performance in Tropical and Humid Climates
Each XPS rigid insulation board from Duolong is designed for superior energy efficiency and long-term performance in demanding environments. Whether in hot, humid zones or areas with heavy rainfall, our extruded polystyrene foam boards—with closed-cell structure and moisture-resistant surfaces—maintain insulation values and structural integrity over time. From housing projects in Thailand to commercial complexes in Vietnam, these boards have proven effective in reducing thermal transfer and cutting energy costs. - Versatile Solutions for Residential, Commercial, and Industrial Use
Duolong’s XPS rigid insulation boards support a wide range of applications, including cavity walls, roof systems, below-grade foundations, and under-slab installations. We offer high-density Type IV boards, foil-faced panels, ship-lap edges, and tongue-and-groove designs. Dimensions, densities, and edge profiles are optimized to meet regional standards and ensure fast installation with lasting durability. - Custom OEM Solutions for Distributors and Public Projects
Our factory provides tailored production for distributors, contractors, and government suppliers. Services include customized thickness, density adjustments, Pantone-matched colors, and private-label packaging. From national housing programs in the Philippines to exclusive branded lines for Southeast Asian importers, we align production to market needs and technical specifications.
- Certified for Export and Green Building Standards
Produced under ISO 9001:2015-certified processes and tested to SGS and CE standards, our XPS boards meet international export requirements and sustainable building initiatives. With low thermal conductivity and recyclable materials, these boards support energy-saving goals for public and private sector projects alike. - Optimized for Shipping, Inventory, and Installation
Each board is designed for compact stacking, protective packaging, and lightweight handling—enabling faster installation and efficient logistics. Contractors, wholesalers, and cross-border importers benefit from reduced shipping damage and simplified inventory control for multi-site projects and phased deliveries. - Reliable Supply Chain for Large Orders
Duolong maintains extensive warehouse capacity to ensure steady stock of popular XPS rigid insulation board types and sizes. We support advance scheduling, consistent batch production, and mixed-container shipping to meet large-scale and urgent procurement demands during peak seasons.
FAQ Questions and Answers
We produce a full range of XPS rigid insulation boards, including high-density Type IV XPS boards (25 psi), foil-faced XPS insulation panels for roofing applications, ship-lap edge XPS boards, and tongue-and-groove XPS boards for seamless installation. Standard board sizes include 1,200mm x 600mm and 2,400mm x 600mm, with thickness options from 25mm to 100mm. These boards are widely used in wall cavities, under-slab insulation, and roof systems across Southeast Asia.
Yes. All Duolong XPS rigid insulation boards are manufactured in ISO 9001:2015-certified facilities and tested by accredited third-party labs such as SGS and CE. We provide full compliance documentation, including Material Safety Data Sheets (MSDS), CE declarations, and market-specific certifications for export to Thailand, Vietnam, Indonesia, and Malaysia.
Our XPS rigid insulation boards are engineered for high moisture resistance, long-term R-value retention, and compressive strength stability. The closed-cell foam structure prevents water absorption and maintains insulation efficiency in hot, humid, and flood-prone environments, making them ideal for foundations, roofs, and wall applications in tropical regions.
Yes. We offer OEM and ODM services for XPS rigid insulation boards, including customized thicknesses, densities, edge profiles (square-edge, ship-lap, tongue-and-groove), and private-label packaging. These services are suitable for public infrastructure tenders, branded retail lines, and project-specific technical requirements.
Lead times typically range from 10 to 20 working days, depending on the order size and product specifications. For popular sizes and densities, we maintain stock to enable faster delivery. All shipments are packed with protective film, reinforced corner guards, and waterproof wrapping to ensure safe transport.
Yes. Duolong XPS rigid insulation boards are widely used in public sector projects such as government housing, hospitals, and municipal facilities. We provide technical drawings, compressive strength test reports, fire resistance certifications, and compliance documents to support tender submissions and construction audits.
We handle the entire export process, supplying commercial invoices, packing lists, certificates of origin, and bills of lading. Our logistics team manages FCL and LCL shipments with optimized container loading for cost efficiency. Third-party pre-shipment inspections and custom labeling services are available for multi-destination distribution.
Absolutely. Duolong’s production capacity exceeds 500,000 square meters of XPS rigid insulation boards per month, supported by large warehousing systems for phased deliveries. We ensure color and density consistency through strict batch controls, ideal for large-scale construction projects.
XPS rigid insulation boards offer superior compressive strength, lower water absorption, and higher long-term R-values than EPS. Unlike mineral wool, XPS boards are lightweight, easy to handle, and maintain their structural integrity in humid environments. These advantages make them preferred for under-slab insulation, foundation walls, and roofing systems in tropical climates.
Yes. We provide physical samples of XPS rigid insulation boards, including cut sections and color options, for evaluation. Technical datasheets, installation manuals, and third-party test reports are also available to support your procurement decisions. Samples can be shipped via DHL or FedEx within 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 XPS Rigid Insulation Board Manufacturer
Table of Contents
Bulk Pricing Advantages for XPS Rigid Insulation Board Buyers
Stable Pricing Structure Designed for Full-Container Procurement Duolong offers a pricing system tailored to the realities of high-volume XPS rigid insulation board supply. For buyers managing multi-container shipments or regional distribution networks, our bulk pricing is based on long-term procurement planning rather than short-term raw material fluctuations. We have supported clients across Southeast Asia with predictable pricing for XPS insulation panels, helping simplify tender submissions, warehouse planning, and budgeting for large-scale construction projects.
Fixed Insulation Board Specifications for Efficient Quotation and Repeat Orders We maintain a standardized range of XPS rigid insulation board products—including high-density Type IV boards, foil-faced roof insulation panels, and tongue-and-groove edge profiles. By quoting based on fixed thickness grades, densities, and dimensions, we help distributors and contractors secure quick price references, shorten negotiation cycles, and ensure product consistency across repeat orders. This system supports B2B buyers seeking cost stability and streamlined logistics for multi-phase building projects.
Forward Contract Pricing for Public-Sector Budget Control For contractors working on public tenders, government housing developments, or institutional insulation contracts, we offer forward contract pricing. These agreements lock in unit prices for XPS rigid foam boards over 3 to 6 months, enabling procurement teams to stabilize budgets and minimize risks from raw material price changes. This approach is ideal for projects with approved BOQs, extended tender periods, or phased delivery schedules.
Optimized Container Loading to Lower Landed Cost per Cubic Meter Duolong’s pricing advantage extends beyond production. Our container loading expertise reduces landed costs by maximizing space utilization for XPS rigid insulation boards. Each shipment is carefully packed with attention to board dimensions, stacking orientation, and edge protection to minimize damage and freight wastage. We manage the full export process under FOB, CIF, or EXW terms, providing detailed packing lists, HS codes, SGS/CE certifications, and certificates of origin for smooth customs clearance and delivery planning.
Planned Production for Seasonal or Multi-Site Delivery Our production scheduling aligns with real-world project timelines. For buyers working within seasonal construction windows or coordinating deliveries to multiple job sites, we offer advance production reservations and batch control. This ensures a steady supply of XPS rigid insulation boards for large housing developments, commercial complexes, and public infrastructure projects across Southeast Asia.
A Pricing Model Built for Project Execution, Not Just Purchase Our bulk pricing approach reflects the realities of on-site project execution. Whether supplying under-slab insulation for industrial parks, cavity wall panels for housing programs, or roof insulation for government schools, Duolong delivers more than just a price per cubic meter. We provide a scalable sourcing model backed by consistent manufacturing, export-ready documentation, and factory-direct expertise. Every shipment is designed to keep your project on schedule, within budget, and supported by the reliability of a trusted XPS rigid insulation board manufacturer.
Consistent Product Specifications for XPS Rigid Insulation Board Orders
Standardized Production Ensures Dimensional and Structural Accuracy At Duolong, every XPS rigid insulation board is produced through a unified extrusion process that ensures precise density, thickness, and edge finish. From extrusion calibration to surface smoothness and edge profile cutting, we maintain strict dimensional accuracy across all product lines. Whether it’s square-edge XPS boards, ship-lap panels, or tongue-and-groove designs, each board complies with tight tolerances to minimize onsite gaps, thermal bridging, and additional labor during installation.
Unified Mold Systems for Phased Procurement and Repeat Orders All insulation boards are manufactured using fixed die systems and standardized cutting modules. This allows contractors and cross-border importers to reorder across multiple phases without variation in thickness, compressive strength, or edge profiles. For multi-phase housing projects or long-term government insulation contracts, maintaining identical specifications over several months is critical—and this is exactly what Duolong delivers.
Controlled Density and R-Value Retention for Long-Term Performance We apply inline foam density monitoring and closed-cell structure verification to ensure consistent insulation properties throughout every batch. Popular specifications such as Type IV XPS rigid boards (25 psi compressive strength) and foil-faced roof insulation panels are tested for R-value stability and water absorption rates, making them ideal for projects in tropical and high-humidity regions.
Labeling, Palletization, and Documentation Aligned to B2B Workflows Every shipment of XPS rigid insulation boards includes full product traceability—batch numbers, thickness codes, and edge profile markings. Our pallet packaging is optimized for container loading efficiency, enabling fast identification at customs, bonded warehouses, and regional distribution hubs. For clients managing multiple SKUs or supplying various job sites, this packaging strategy reduces unloading errors and accelerates onsite deployment.
Strict Raw Material Control from Input to Output We use only virgin-grade polystyrene resins and eco-friendly blowing agents during production. Each batch is monitored with automated density detectors, edge scanners, and surface flatness controls, ensuring every board is free from deformation, voids, or thermal inconsistencies. This level of precision gives procurement teams confidence when supplying insulation for high-visibility government or commercial construction projects.
Certified Quality That Meets Institutional Standards All Duolong XPS rigid insulation boards are manufactured under ISO 9001:2015-certified systems and verified by third-party labs such as SGS and CE-authorized testing facilities. Our insulation products meet standards for compressive strength, thermal performance, and moisture resistance, allowing buyers to confidently submit specifications for tenders, public housing programs, and compliance inspections.
Reliable Specifications Mean Predictable Results With Duolong, your XPS rigid insulation board supply remains consistent from production to delivery. From board thickness and edge profile to container packing and site installation, every shipment matches the one before it. This reliability supports bulk procurement contracts, large-scale infrastructure developments, and multi-site distribution programs where material predictability is critical.
Long-Term Partnership Support for XPS Rigid Insulation Board Supply
Structured Supply Systems for Repeat Procurement and Regional Fulfillment At Duolong, we partner with clients who require more than one-time shipments. Our long-term supply model is designed for buyers managing recurring deliveries of XPS rigid insulation boards across multiple cities, provinces, or countries. Whether you are a building materials wholesaler, a project contractor, or a cross-border importer, our fixed-format production, inventory stability, and rolling container dispatch systems help you maintain a reliable supply cycle for residential, commercial, and public-sector insulation projects.
Reserved Capacity and Forward Pricing for Procurement Stability To protect your procurement budgets from raw material price fluctuations and seasonal construction demand peaks, Duolong offers forward contract pricing and production slot reservations. Whether sourcing high-density Type IV XPS insulation boards or foil-faced roof panels, your supply is secured at a locked rate with priority delivery during peak building seasons. This approach supports public housing tenders, large infrastructure programs, and multi-phase construction projects requiring fixed pricing and uninterrupted supply.
Dedicated Project Coordination from Forecast to Fulfillment Each long-term client is assigned a dedicated coordinator who manages demand forecasts, order windows, and logistics milestones. From container loading plans and export paperwork to delivery scheduling and port-side clearance, our team aligns every step of the process with your project timeline—ensuring your XPS rigid insulation boards arrive on-site, on time, and without delays that could disrupt construction progress.
Advance Production Planning for Volume-Based Project Pipelines For clients managing annual procurement contracts, multi-country supply networks, or tender-driven demand cycles, we provide advance production scheduling and raw material allocation. This ensures Duolong can prepare palletized shipments, standardized packaging, and export documentation ahead of schedule—even during resin supply shortages or global port congestion. As a result, your shipments of XPS rigid insulation panels are ready precisely when your projects need them.
Export Logistics Tailored to Multi-Region Inventory Management We assist distributors and importers in coordinating seamless deliveries to bonded warehouses, regional hubs, or third-party consolidators. Our logistics team optimizes board stacking, thickness separation, and color-coded labeling to ensure accuracy across your supply chain—from customs clearance to warehouse handling. Whether your customers are in Thailand, Vietnam, Indonesia, or the Middle East, we streamline the import process and support cross-border inventory management.
Early Material Access and Technical Support for New Projects Long-term partners gain early access to enhanced product lines—including moisture-resistant XPS rigid insulation boards, high-compressive strength panels, and eco-friendly closed-cell insulation solutions. We provide sample kits, thermal performance data, and technical specifications to support government tenders, architectural catalogs, and client design approvals. This competitive advantage helps you stay ahead in public-sector bidding and large-scale procurement initiatives.
A Manufacturing Partner Focused on End-to-End Supply Resilience Working with Duolong means securing more than just a product—it means gaining a dependable supply framework built for repeatability, regional scalability, and procurement certainty. With consistent board thicknesses, stable R-value performance, SGS/CE-certified XPS rigid insulation boards, and containerized export processes, we help B2B buyers minimize supply risks, control costs, and deliver superior results in every insulation project.
How XPS Rigid Insulation Boards Help Reduce Construction Costs
Lightweight Panels Reduce Structural Load and Framing Requirements Duolong’s XPS rigid insulation boards are significantly lighter than traditional concrete-based insulation systems. This reduced weight lowers structural demand on foundations, steel framing, and subfloor systems, allowing engineers and contractors to design more economical support structures. In residential housing, commercial complexes, and government infrastructure projects, the lightweight nature of XPS boards simplifies installation and reduces transportation costs—helping cut construction expenses from the ground up.
Moisture-Resistant and Durable for Lower Maintenance Costs Our XPS rigid insulation panels feature a closed-cell structure that resists water absorption, mold growth, and thermal degradation. Unlike mineral wool or expanded polystyrene (EPS) that deteriorate in high humidity, Duolong’s XPS boards maintain their R-value and structural integrity over time. This reduces the need for early-stage replacement or remedial waterproofing, making them ideal for tropical climates in Southeast Asia and cost-sensitive public-sector projects where maintenance budgets are limited.
Quick-Cut Profiles Increase Speed and Reduce Labor Costs Each XPS rigid insulation board is manufactured to standardized dimensions with clean-cut edges for precise alignment. Installers can cover large wall and roof areas faster without excessive trimming or reworking. This efficiency is critical for housing developers, commercial contractors, and government construction teams working under tight seasonal deadlines—reducing workforce hours, scaffolding time, and site overhead.
Export-Ready Packaging Minimizes Product Loss in Transit Traditional rigid insulation products are prone to breakage or edge deformation during long-haul shipping. Duolong’s XPS rigid insulation boards are packed using reinforced pallets, protective film wrapping, and edge guards to resist transit damage. This minimizes on-site material loss, costly reorders, and project delays for importers and distributors managing multi-container shipments.
Thermal and Energy Efficiency for Long-Term Operational Savings XPS rigid insulation boards deliver superior thermal resistance, reducing energy transfer and helping maintain cooler interiors in hot climates. For community buildings, schools, and commercial facilities, this translates to lower air conditioning loads and long-term energy savings. These indirect cost benefits make XPS insulation a preferred choice for sustainable construction and green building certifications.
Cost Efficiency That Extends Across the Full Supply Chain Choosing Duolong’s XPS rigid insulation boards is more than selecting a material—it’s an investment in supply chain efficiency. From reduced structural demands and faster site installation to robust export packaging and lifecycle durability, our insulation panels create measurable value at every stage of your project. That’s why contractors, importers, and institutional developers across the region trust Duolong to protect not only their buildings—but also their budgets.
Ensuring Smooth Customs Clearance and Compliance in Global Trade
Export-Ready Shipments for Construction Material Buyers At Duolong, we understand that supplying XPS rigid insulation boards to international markets requires more than just manufacturing. Our export operations are designed to support building materials wholesalers, government contractors, and regional importers who depend on seamless customs clearance and accurate documentation. Whether your project involves phased container shipments or direct-to-site deliveries, we ensure every load complies with the destination country’s import standards.
Country-Specific Export Files Prepared with Precision Each shipment of XPS rigid insulation boards—whether square-edge, ship-lap, or tongue-and-groove panels—includes a complete set of export documents tailored to local regulations. Our export team prepares commercial invoices, HS code declarations, certificates of origin, packing lists, and factory audit records—all formatted for clearance at ports in Bangkok, Ho Chi Minh City, Manila, or Dubai. For public-sector contractors and bonded warehouse importers, this documentation minimizes delays and aligns with regional compliance frameworks.
Third-Party Certification Backing Every Shipment All Duolong XPS rigid insulation boards are supported by SGS laboratory test reports, CE certifications, and in-house quality control records verifying compressive strength, moisture resistance, and thermal performance. These certifications simplify customs inspections, infrastructure funding audits, and material registration for public tenders. Our compliance archive enables procurement teams to provide verifiable proof during logistics or government approval stages.
Pre-Export Inspection and Verified Packing for Customs Accuracy Before each container is sealed, Duolong performs a pre-shipment inspection to match product content with declared export documents. Boards are thickness-labeled, color-coded for quick identification, and shrink-wrapped for secure transit. Pallets are barcode-tagged and mapped to container configurations, ensuring smooth destination port inspection and reducing the risk of detainment, repacking, or penalties.
Supporting Government Project Procurement with Full Declarations For shipments tied to public housing insulation programs, government school construction, or cold storage tenders, we provide additional documentation such as environmental compliance statements, material safety data sheets, and detailed technical specifications. Available in English, Vietnamese, Arabic, and other requested languages, these files help buyers pass approval reviews, regulatory checks, and grant-backed procurement audits with confidence.
Trusted Freight Coordination and Port Handling Expertise Duolong works with licensed freight forwarders and customs brokers experienced in handling construction-grade insulation materials. We coordinate FCL and LCL shipments under FOB, CIF, or EXW terms through major Chinese ports like Qingdao, Ningbo, and Shanghai. From container slot booking to unloading assistance, our logistics team aligns shipping timelines with your warehouse intake schedules and project deployment plans.
Real-Time Tracking and Transparent Document Flow From factory sealing to final customs clearance, Duolong provides real-time shipment tracking and transparent document sharing. Clients receive status updates for container departures, customs milestones, and delivery schedules, along with organized digital document handovers. This clarity helps importers and project managers synchronize site readiness and reduce downtime.
A Fully Prepared Export Solution—Beyond Just Insulation Boards Each shipment of XPS rigid insulation boards from Duolong is part of a comprehensive export-ready solution. Backed by certifications, precise documentation, and experienced freight coordination, we help our partners avoid delays, clear customs smoothly, and deliver insulation materials confidently across Southeast Asia, the Middle East, and Africa.
Flexible Order Quantities to Support Every Stage of Your Business
Low MOQ Support for Importers, Contractors, and Pilot Buyers At Duolong, we understand that not every roofing project begins at full-container scale. Whether you’re introducing stone coated roofing sheets into a new market, preparing material samples for a public-sector tender, or purchasing for a phased construction rollout, we offer low minimum order quantities across all standard profiles. This flexibility helps importers, project contractors, and regional distributors manage warehouse space, funding cycles, and market testing with confidence.
Mixed Model Shipments for Efficient Market Response Clients can combine multiple product profiles—such as shingle-style stone coated panels, tile-shaped steel roofing sheets, and shake-style designs—into a single LCL or trial shipment. This option reduces overstock risk for distributors, enables contractors to meet diverse specification sheets, and allows buyers to evaluate demand across product lines. All panels are palletized with reinforced stacking, optimized load planning, and full customs compliance for smooth delivery.
Strict Quality Control Regardless of Order Size Every stone coated metal roofing sheet is produced under the same ISO 9001:2015-certified processes, whether for a small batch or a full 40HQ container. We apply dimensional tolerance checks, coating adhesion tests, and UV-resistance validation to all orders. Each unit is wrapped, barcoded, and labeled in line with CE and SGS certifications, ensuring consistent quality and export readiness—no matter the quantity.
Scalable Supply Without Changing Vendors As your projects grow, Duolong’s production systems scale with you. From early-stage trials of stone coated roofing sheets to high-volume rollouts for large infrastructure contracts, we maintain batch consistency, color uniformity, and tooling precision. This reliability allows you to increase procurement without risking material mismatches or supply disruptions common with vendor changes mid-cycle.
Ideal for Market Testing, Tender Submission, and Phased Construction Our flexible MOQ model supports clients preparing validation sets for new markets, architectural kits for tender bids, or materials for initial construction phases. Buyers can assess structural fit, installation efficiency, and packaging durability before committing to large-scale inventory—reducing financial exposure and aligning with dynamic project timelines.
Export Services for Small and Phased Shipments Even for partial container or LCL shipments, Duolong provides full export services: including commercial invoices, certificates of origin, HS code filing, and CE/SGS documentation. Our logistics team works with freight partners to manage port declarations, mixed-load container planning, and schedule coordination, ensuring smaller orders are delivered with the same precision as bulk shipments.
A Supply System Designed to Grow With You From your first trial batch of stone coated roofing sheets to full-scale procurement for regional housing projects, Duolong offers a scalable and standards-compliant supply chain. This approach allows you to respond quickly to bids, market opportunities, and project awards—without compromising on product quality, delivery accuracy, or customer confidence.
Dedicated After-Sales Support for Reliable Project Execution
Installation Support That Extends Beyond Delivery At Duolong, delivery is not the end of our job—it’s where our real support begins. Every shipment of XPS rigid insulation boards comes with structured technical assistance to ensure proper installation and long-term thermal performance. Whether the boards are used in school construction, commercial buildings, or public housing projects, we provide application-specific installation guides, direct service communication, and region-based technical recommendations to help your team install with confidence and precision.
Adapted Guidance for Structural Requirements and Climate Zones We understand that wall assemblies, roof systems, and local climate zones directly affect insulation performance. That’s why we offer tailored installation advice for each project’s structural framework and site conditions. From board alignment and adhesive application to vapor barrier integration and thermal bridging prevention, our team helps optimize the use of XPS rigid insulation panels for tropical humidity, coastal environments, or high-temperature inland regions—ensuring durability across all applications.
Product-Specific Documentation for On-Site Clarity Each shipment includes technical documentation linked to its specific board type—whether high-density Type IV panels, foil-faced roof insulation boards, or tongue-and-groove edge designs. These documents provide clear diagrams for board placement, fastening details, expansion allowances, and moisture control measures in both print and PDF formats. Such tools reduce errors during installation and are especially valuable for multi-layer systems, prefabricated steel buildings, and modular construction setups.
Real Project Feedback Translated into Field Solutions When unexpected challenges arise—such as substrate adjustments, vapor barrier overlaps, or edge alignment issues—our technical team provides practical solutions based on real-world case experience. Drawing insights from completed projects across Southeast Asia, Africa, and the Middle East, we help troubleshoot installation inconsistencies and prevent thermal performance loss, keeping your project on schedule and ensuring long-term energy efficiency.
Technical Continuity for Multi-Phase and Repeat Projects For clients managing multi-stage developments across schools, industrial zones, or public facilities, we maintain site-specific installation notes, color logs, and board alignment recommendations to ensure consistency in thermal insulation and appearance across phases. This continuity reduces the need for retraining contractors and prevents costly adjustments between project stages.
Training Materials for New Markets and First-Time Contractors For new buyers or market launches of XPS rigid insulation boards, Duolong provides comprehensive training resources. These include step-by-step installation videos, user manuals, and remote consultations to help contractors quickly adapt to material handling and fixing techniques. In select regions, we also coordinate on-site orientation sessions with local partners during initial deliveries—building installer confidence and minimizing startup risks.
Every Delivery Backed by Practical On-Site Execution Support Whether it’s a trial shipment of XPS rigid insulation panels or a full-container load for a government housing project, Duolong backs every order with responsive technical service. Our after-sales support ensures your team installs correctly the first time—helping you reduce delays, optimize material usage, and deliver energy-efficient insulation solutions for infrastructure, commercial, and public-sector clients.
Certification and Documentation Support for Government and Institutional Insulation Projects
Proven Experience Serving Government Construction Across Regions At Duolong, we have years of experience supporting government-funded and donor-backed construction projects across Southeast Asia, the Middle East, and Africa. Our XPS rigid insulation boards have been supplied for public housing developments, school retrofitting programs, hospital insulation systems, and municipal cold storage facilities. From community housing projects in Vietnam to public health centers in Kenya and government warehouses in Saudi Arabia, our export and compliance teams are fully equipped to prepare technical files and procurement documentation required for institutional tenders.
ISO-Certified Manufacturing with Verified Performance Testing All Duolong XPS rigid insulation boards are produced under ISO 9001:2015-certified systems, with continuous validation for compressive strength, thermal resistance, water absorption, and long-term dimensional stability. Third-party certifications from SGS and CE conformity documents provide institutional buyers confidence during audits, donor evaluations, and construction material inspections—ensuring our insulation boards meet the strict performance standards of public-sector contracts.
Complete Compliance Documentation for Tender Submission Every shipment includes a comprehensive set of export and compliance paperwork: commercial invoices, certificates of origin, HS code declarations, packing lists, and SGS test reports. For public tenders and institutional procurement, we also prepare Declarations of Conformity, technical data sheets referencing ISO/EN standards, and traceability records for density and thermal conductivity. These documents are formatted to meet government submission requirements, minimizing the risk of resubmission and expediting tender approvals.
Technical Alignment with Project Specification Manuals We cross-check our XPS rigid insulation boards against engineering specification manuals to ensure compliance with required board thickness, compressive strength, R-value ratings, and edge profile designs. This process helps contractors and procurement teams pass material acceptance inspections, avoid rejection during design approvals, and eliminate costly last-minute material substitutions due to spec mismatches.
Bilingual File Support and Region-Specific Certifications Our documentation team provides bilingual support in English–Vietnamese, English–Thai, and English–Arabic to meet the needs of regional public authorities and eliminate translation errors. We assist clients with CE/SGS formatting, factory audit scheduling, and compliance audit preparation—ensuring every shipment of XPS rigid insulation boards meets customs, project supervision, and institutional requirements without delays.
Approved Insulation Products in Completed Public Projects Duolong’s XPS rigid insulation panels have been installed in government housing estates, municipal education facilities, and public sector cold storage buildings—where certification-backed quality and consistent thermal performance were essential. Our proven track record includes collaborations with public works departments, international NGOs, and donor-backed infrastructure programs, all requiring complete and verifiable documentation.
More Than a Manufacturer—A Document-Ready Institutional Partner When you partner with Duolong, you gain more than a supplier—you secure a documentation-ready partner who provides certification, compliance support, and tender-aligned paperwork. This partnership reduces risk, speeds up project approvals, and ensures your public or institutional insulation project progresses smoothly from bid submission to on-site installation.
Proven Durability in Humid and High-Temperature Environments
Engineered for Harsh Tropical, Coastal, and High-UV Regions Duolong’s XPS rigid insulation boards are designed for climate zones where ordinary insulation materials fail. From Southeast Asian equatorial cities to coastal cold storage facilities in West Africa and sun-exposed commercial buildings in the Middle East, our boards are built to resist water absorption, thermal degradation, and structural distortion caused by constant heat, humidity, and ultraviolet exposure. Whether installed in public housing, healthcare facilities, or large-scale warehouses, their performance remains stable across real-world weather cycles.
Closed-Cell Structure for Long-Term Thermal and Dimensional Stability Each Duolong XPS rigid insulation board features a dense closed-cell foam structure engineered to prevent moisture penetration, resist compression, and retain R-value under prolonged environmental stress. This design ensures long-term shape retention and insulation performance, even after years of exposure to tropical rainfall, thermal cycling, and saline coastal air. The robust composition also supports load-bearing applications without compromising structural integrity over time.
Certified Performance Under Climate-Specific Stress Testing Duolong’s XPS rigid insulation boards are certified by SGS and independent laboratories for low water absorption (<0.1%), high compressive strength (up to 250 kPa), and long-term thermal resistance after accelerated aging tests. These certifications confirm the boards’ ability to maintain insulation efficiency, mechanical stability, and dimensional accuracy in high-humidity building envelopes, under-slab installations, and government-backed infrastructure projects.
Lightweight Format Reduces Structural Stress and Installation Time In humid and heat-intensive climates, insulation must deliver high performance without adding unnecessary structural load. Duolong boards are lightweight yet strong, reducing the stress on walls, roofs, and subfloor systems. Their low moisture retention prevents swelling, mold development, or delamination, making them ideal for prefabricated modular buildings, rural housing, and large-span commercial structures.
Installation Guidelines Tailored to Environmental Variables We provide technical support aligned with regional climate conditions. Each shipment includes recommendations on adhesive application, joint sealing methods, and board layout for heat-intense, moisture-heavy, or saline-prone environments. These resources help contractors avoid installation errors and optimize insulation effectiveness for government housing schemes, cold storage warehouses, and community development programs.
Built for Regions Where Climate Challenges Are Non-Negotiable With Duolong, you receive more than an insulation product—you secure a material engineered for the climate realities of tropical, coastal, and arid inland regions. From monsoon-impacted public buildings to energy-efficient roofing systems in high-UV zones, our XPS rigid insulation boards are proven to perform where insulation failure is not an option.
