Explore our export-certified, high-performance exterior and interior panel systems engineered for longevity
Modern architecture demands envelopes that combine uncompromising durability, structural efficiency, and elevated fire safety. Exterior Calcium Silicate Boards represent a premier technical solution for high-density, multi-layer cladding applications. Formulated from high-grade siliceous materials, calcium oxide, and reinforcing organic fibers, these boards undergo an advanced hydrothermal process in high-pressure steam autoclaves. This results in a stable crystalline matrix (tobermorite structure) that exhibits exceptional dimensional stability, resistance to environmental stress, and superior mechanical performance compared to traditional plasterboards or standard fiber-cement alternatives.
As a leading supplier and exporter, Tangshan Haofa International Trade Co., Ltd. integrates global sourcing protocols with industry-leading quality assurance. Our exterior boards are engineered specifically to resist extreme structural loads, seismic activity, thermal cycling, and high atmospheric humidity. These properties make them the preferred material for complex facade projects, modular prefabricated systems, and extreme weather envelopes.
Integrating the world's best building materials and design resources to deliver one-stop, all-round trade solutions.
The name “Haofa” represents a wide world with great potential. Established as a comprehensive commercial and industrial building materials provider, Haofa has been deeply embedded in the decoration and construction materials sector for over 25 years. We operate at the intersection of large-scale wholesale supply and custom architectural fabrication, covering three key building components: wall systems, ceiling systems, and flooring solutions.
Our strategic catalog encompasses high-strength calcium silicate boards, light steel keels, soundproofing gypsum panels, high-density mineral wool, WPC panels, and custom interior hardware.
We collaborate with hundreds of premium manufacturers across 20+ Chinese cities, ensuring robust supply chain redundancies, rapid production scalability, and cost efficiency.
Led by founder Ms. Zhang Xuedong, our export operations division averages over 10 years of international trade experience, optimizing compliance, logistics, and document management.
At Haofa, our culture centers on quality, innovation, and dedicated service. We believe in taking complete ownership of client projects, striving to make every client a lifelong partner. Our teams span multiple key departments, including Operations, Procurement, Human Resources, and Sales, working in unison to manage complex bulk shipments.
We operate with the strict motto: "once a deal, lifelong friends." This drives us to continuously optimize our product specifications and offer comprehensive after-sales technical support to our global partners.
Understand the physical properties that distinguish high-quality exterior calcium silicate boards from traditional gypsum and wood panels
The primary raw materials used in our autoclaved calcium silicate production lines include crystalline silica powder, high-calcium lime, portland cement, and clean plant fibers for reinforcement. Under high temperature (typically around 180°C) and pressure (10-12 bar), the silica and calcium oxide undergo a chemical synthesis that generates a crystalline tobermorite matrix. This compound provides unique structural advantages: it does not rot, swell, warp, or support mold growth when exposed to continuous humidity or temperature fluctuations.
| Physical Properties | Standard Metric Values | Test Standards Complied |
|---|---|---|
| Dry Density | 1.20 - 1.45 g/cm³ (Medium-High Density) | ASTM C1185 / EN 12467 |
| Flexural Strength (Wet Condition) | ≥ 10 MPa (Longitudinal) / ≥ 13 MPa (Transverse) | ASTM C1185 |
| Thermal Conductivity | ≤ 0.24 W/(m·K) | ASTM C177 |
| Combustibility / Fire Behavior | Class A1 Non-combustible (up to 4 hours fire wall rating) | EN 13501-1 / ASTM E136 |
| Moisture Movement (Wet to Dry) | ≤ 0.19% | EN 12467 |
| Water Absorption Rate | ≤ 30% | ASTM C1185 |
| Asbestos Content | 100% Asbestos-Free | EPA 600/R-93/116 |
Why international contractors choose Tangshan Haofa for bulk materials supply chains
Our exterior cladding products hold certifications including CE, ASTM, RoHS, and EN standards. We guarantee that all structural components meet the strict fire, wind load, and seismic requirements of EU and US building codes.
We offer customizable dimensions, custom edge configurations (tapered, square, or ship-lap), and tailored neutral or branded packaging. This supports seamless distribution and direct site delivery for our clients.
We support multiple trade terms, including FOB, CIF, EXW, and DDP. Our experienced logistics teams manage customs clearances, shipping documentation, and port handling to ensure reliable project delivery.
Our structural materials meet national and international environmental certifications, fireproof ratings, and moisture-proof standards.
Combining our high-performance boards with compatible framing systems to meet demanding structural performance requirements
Designed for high-risk zones, structural columns, and multi-occupancy fire separation walls. Our panels act as thermal barriers that prevent flame propagation and smoke infiltration.
Developed to control sound transmission loss and interior reverberation. Ideal for commercial theaters, performance halls, and high-end residential partition systems.
Specially engineered for damp climates, sub-grade basements, coastal projects, and high-humidity interior zones. Prevents water damage and structural decay.
Optimized for modular, assembly-line construction methods, drastically reducing field labor requirements and waste generation.
Engineered for heavy-duty industrial walls and storage partitions, providing high impact resistance against heavy equipment.
Combines structural durability with versatile surface finishes, providing architects with flexible options for high-end decorative designs.
Our cladding systems are engineered for diverse architectural installations worldwide
Key drivers shaping the global exterior wall panel market
Following significant global structural fires, regulatory bodies in the European Union, the Middle East, and North America have banned combustible cladding. Autoclaved exterior calcium silicate boards achieve a Class A1 non-combustible rating, making them a safe and reliable option for high-rise buildings and public infrastructure.
Rising field labor costs and accelerated project timelines are driving the adoption of pre-fabricated volumetric modular units. High-strength calcium silicate boards are ideal for factory-based assembly, providing high structural rigidity and impact resistance during transport and crane installation.
Environmental rating systems like LEED and BREEAM reward building envelopes that utilize eco-friendly, non-hazardous materials. Modern calcium silicate boards contain zero VOC emissions, no formaldehyde, and are completely asbestos-free, supporting green building targets and indoor air quality.
Technical guidance and sourcing information from our engineering department
Exterior calcium silicate boards are manufactured with a higher density (typically above 1.25 g/cm³) and are autoclaved under higher pressures to resist freeze-thaw cycles, solar radiation, and continuous moisture. Interior boards are generally lighter, optimizing thermal insulation and ease of cutting for ceiling and partition applications.
Our boards are classified as Class A1 non-combustible (certified to EN 13501-1 and ASTM E136). In a standard wall assembly, they provide up to 4 hours of fire resistance, preventing flame spread and structural failure without emitting toxic smoke.
Yes, we provide full OEM support. We can apply custom branding, part numbers, and logos directly to the boards, or ship them in neutral packaging with edge protectors and moisture-proof plastic wrapping on solid wooden pallets.
Tangshan Haofa provides flexible trade terms including FOB, CIF, EXW, and DDP. Our logistics team handles customs declarations, container loading, and ocean freight logistics to major global ports.
All our calcium silicate and building products are 100% asbestos-free, complying with environmental safety regulations in Europe, North America, and Australia.
Our boards have a low wet-dry expansion rate (≤0.19%), which prevents warping and buckling at the joints when sealed with polyurethane joint sealants.
We supply contractors and distributors across 30+ countries, including:
US, CA, HT, BR, CL, CO, PE, GB, FR, ES, NL, DE, CD, GH, TZ, CI, MY, SA, OM, AE, IN, PK, SG, PH, JP, VN, ID, AU, NZ
Complete your design with our high-grade flooring, acoustic ceilings, and structural frame elements
Haofa