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Help CenterAluminum Zinc Coated Steel Metal Exterior Wall Sandwich Panel 75mm Thickness for Thermal Insulation R-Value 30
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your trusted partner for high-performance building materials. Our Aluminum Zinc Coated Steel Metal Exterior Wall Sandwich Panel with a thickness of 75mm and an impressive R-Value of 30 is engineered to provide superior thermal insulation for exterior walls. Manufactured under strict ISO9001 quality management, this panel combines durability, energy efficiency, and ease of installation, making it an ideal choice for commercial, industrial, and residential projects worldwide.
With annual export values reaching US$50 million to US$100 million and a dedicated team of 51–100 professionals, we ensure that every panel meets the highest standards of performance. Our product is designed to reduce energy costs, enhance indoor comfort, and withstand harsh weather conditions, all while maintaining a sleek appearance. Whether you need a solution for cold storage, warehouses, office buildings, or prefabricated houses, this sandwich panel delivers exceptional value.
Key Features & Technical Specifications
- Material: Aluminum Zinc Coated Steel (Galvalume) – excellent corrosion resistance and long service life.
- Thickness: 75mm – optimal balance between insulation and structural strength.
- R-Value: 30 – high thermal resistance, significantly reducing heat transfer.
- Core Options: Polyurethane (PUR) or Rock Wool (optional) – choose based on fire rating and insulation needs.
- Surface Finish: Smooth or embossed, with customizable color options to match architectural designs.
- Panel Width: Standard 1000mm, other widths available upon request.
- Length: Up to 12 meters per panel, reducing joints and installation time.
- Weight: Approximately 12–15 kg/m², easy to handle and transport.
- Fire Performance: Depending on core material – consult our team for specific fire ratings.
- Environmental: 100% recyclable metal faces, contributing to green building certifications.
Technical Parameters (Typical Values)
| Parameter | Value |
|---|---|
| Panel Thickness | 75 mm |
| R-Value (Thermal Resistance) | 30 (ft²·°F·h/Btu) |
| Metal Face Thickness | 0.4–0.6 mm (customizable) |
| Core Density (PUR) | 40–50 kg/m³ |
| Core Density (Rock Wool) | 100–120 kg/m³ |
| Tensile Strength | ≥ 0.5 MPa (bond strength) |
| Water Absorption (PUR) | ≤ 2% by volume |
Benefits for Your Project
- Energy Savings: The high R-30 value minimizes heat loss in winter and heat gain in summer, reducing HVAC costs by up to 40%.
- Durability: Aluminum zinc coating provides exceptional resistance to rust, UV rays, and chemical exposure, ensuring a lifespan of over 25 years.
- Fast Installation: Lightweight panels with tongue-and-groove joints allow quick assembly, saving labor time and project deadlines.
- Versatility: Suitable for new construction and retrofitting; compatible with steel or concrete structures.
- Sound Insulation: Rock wool core option offers excellent acoustic performance (STC 30–35), ideal for noise-sensitive environments.
- Eco-Friendly: Metal faces are fully recyclable, and polyurethane core can be produced with low-GWP blowing agents.
At Hemaokang Steel, we pride ourselves on being a reliable supplier with a global footprint. Since our establishment in 2025, we have swiftly built a strong export network covering North America, South America, Europe, Africa, Oceania, the Middle East, and Asia. Our annual export value of US$50 million to US$100 million reflects the trust our customers place in our products. Backed by ISO9001 certification and a team of 51–100 experienced professionals, we ensure consistent quality, on-time delivery, and responsive after-sales support.
We invite you to experience the difference that a premium insulation panel can make. Contact us today for a quote, sample, or technical consultation. Let Hemaokang Steel be your partner in building energy-efficient, comfortable, and durable structures.
Frequently Asked Questions
- What does R-Value 30 mean? R-Value measures thermal resistance – the higher the value, the better the insulation. A 75mm panel with R-30 is equivalent to approximately 200mm of fiberglass insulation, providing excellent energy efficiency.
- Can I customize the panel thickness or length? Yes, we offer thicknesses from 50mm to 150mm and lengths up to 12 meters. Custom dimensions are available upon request.
- What core materials are available? We offer polyurethane (PUR) and rock wool (mineral wool) cores. PUR provides higher R-value per thickness, while rock wool offers better fire resistance and sound insulation.
- What is the fire rating of this panel? Fire performance depends on the core. Rock wool cores can achieve Class A (non-combustible) according to ASTM E84. PUR cores typically meet Class B or C. Please specify your requirement for detailed testing data.
- How do I install these panels? Panels are typically installed using concealed fasteners or visible screws, with overlapping joints to ensure weather tightness. Detailed installation manuals and technical support are provided with each order.
- What colors and surface finishes are available? Standard colors include white, grey, and beige. Custom colors can be matched to RAL or Pantone codes. Surface finishes can be smooth, stucco-embossed, or corrugated for aesthetic effect.
- What is the lead time for an order? For standard sizes and colors, lead time is 15–20 days after deposit. Custom orders may require 25–30 days. We ship via FOB, CIF, or DDP terms.
- Is the panel suitable for cold climates? Absolutely. With an R-30 value and sealed joints, this panel prevents condensation and thermal bridging, making it ideal for cold storage facilities, northern region buildings, and high-humidity areas.
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