Four Waves Roof Sandwich Panel
Thermal insulation: The material has excellent thermal insulation performance.
Lightness: It helps reduce the load on the building structure and lower construction costs.
Durability: It has high compressive strength and can withstand wind and snow loads.
Corrosion resistance: The steel plates are galvanized or coated with other chemical protective coatings to prevent algae growth.
Aesthetics: The corrugated roof steel plates have a unique appearance and a wide range of color options, which can enhance the beauty of the building.
Product Introduction
Four-wave roof sandwich panel is a kind of panel commonly used in building roofs. It consists of two layers of metal panels and insulation materials in the middle to form a "sandwich" structure. The surface is in four waves. It is widely used in various types of buildings due to its advantages such as insulation, high strength, lightness and waterproofness.
The panel is usually galvanized steel plate, aluminum plate or stainless steel plate, which is corrosion-resistant. It is widely used in the roofs and walls of large-span buildings such as industrial plants, warehouses, gymnasiums, etc.
Product Specifications
Lengths of panels | costmized(≤11.8m due to transport |
Width of panels | 500mm-1120mm |
Thickness of panels | 30/35/40/50/60/70/75/80/90/100mm |
Exterior steel thickness | 0.4-0.8mm |
Interior steel thickness | 0.4-0.6mm |
Recommend coating | PE/HDP/SMP/PVDF |
Surface finish | Emboss/Small Wave/Big Rib/Flat |
Density | 40-45 kg/m³ |
Water absorption for 24 hours | ≤1 |
Thermal conductivity | ≤0.023w/m-k |
Compressive strength | 2200kpa |
Fire proof rate | B1/B2/B3 |
Features
Wave design
There are four waves on the surface, which enhance the structural strength and drainage performance.
The wave design can also improve the load-bearing capacity of the board, which is suitable for large-span buildings.
Sandwich structure
It consists of two layers of metal panels and intermediate insulation materials.
The panels are usually galvanized steel plates, aluminum plates or stainless steel plates, and the core materials are usually polyurethane (PU), polystyrene (EPS) or rock wool.
Thermal insulation
The core material has good thermal insulation performance, effectively isolates heat and improves building energy efficiency.
Lightweight and high strength
Light weight, easy to transport and install.
The wave design enhances the strength and wind and earthquake resistance of the board.
The Four Waves Roof Sandwich Panel is a high-performance insulated roofing solution engineered for industrial, commercial, and agricultural buildings. Designed with a unique four-rib trapezoidal profile, this panel ensures exceptional load-bearing capacity, weather resistance, and thermal insulation.
Whether you're building a factory, warehouse, or livestock facility, our four-wave roofing panel offers a cost-effective, easy-to-install, and durable solution that performs in harsh climates and demanding environments.
Key Features & Benefits
✅ Excellent Thermal Insulation
Filled with Polyurethane (PU), Polyisocyanurate (PIR), or Expanded Polystyrene (EPS), the core ensures optimal energy efficiency and indoor comfort.✅ High Strength & Load-Bearing
The four-wave design enhances structural strength, supporting snow, wind, and mechanical load with minimal deflection.✅ Fire-Resistant Options
Available in fire-rated materials (such as PIR or Rock Wool) meeting EN 13501-1 and GB8624-2012 standards.✅ Waterproof & Leak-Proof
Overlapping joint design and precision locking system prevent water infiltration, ensuring long-term weather protection.✅ Fast Installation
Lightweight and easy to handle, reducing labor time and costs significantly.✅ Aesthetic Appeal
Clean lines and modern profiles suitable for visible roof applications.
Technical Specifications
| Specification | Details |
|---|---|
| Panel Profile | Four-wave / trapezoidal corrugated |
| Core Materials | PU, PIR, Rock Wool, or EPS |
| Core Density | PU: 40–42 kg/m³, EPS: ≥16 kg/m³ |
| Panel Thickness | 50mm / 75mm / 100mm / 150mm / custom |
| Metal Sheet Thickness | 0.4–0.7mm (top & bottom), galvanized or pre-painted steel |
| Panel Width | Effective width: 1000mm |
| Length | Customized, up to 12m or per container size |
| Thermal Conductivity | PU/PIR: 0.022 W/(m·K), EPS: 0.038 W/(m·K) |
| Fire Rating | PU/PIR: B1/B2, Rock Wool: A1 |
| Color Options | RAL customized colors available |
| Fastening Method | Overlap joint with self-tapping screws |
Applications
The Four Waves Roof Sandwich Panel is ideal for:
🏭 Industrial Workshops
📦 Warehouses & Logistics Centers
🚜 Agricultural Buildings (e.g., poultry farms, barns)
🏠 Prefabricated Houses
🏢 Commercial Facilities
❄️ Cold Storage Rooms (with PU/PIR core)
Its superior insulation and mechanical strength make it especially suitable for projects requiring energy efficiency and cost savings over time.
Why Choose Our Four Waves Roof Panel?
🔒 Certified Performance
Products comply with ISO 9001, CE, and SGS testing standards for insulation, fire resistance, and waterproofing.🧰 Custom Manufacturing
Tailored sizes, colors, and core materials to fit your specific project.👷 Proven Track Record
Trusted by over 2,000 global clients, with successful applications in the Middle East, Southeast Asia, and Latin America.🛠️ One-Stop Roofing Solution
We provide accessories, ridge caps, flashing, and installation guidance.
Customer Testimonials
🔹 “We installed Four Waves PU panels on our 10,000 m² logistics center in Saudi Arabia. Despite the extreme temperatures, the building remains cool and well-protected. Highly recommend!”
— Mohammed Al Rahim, Project Manager, Riyadh
🔹 “What impressed us most was the speed of delivery and the precision of the panels. Everything aligned perfectly. Great value for money.”
— Carlos Esteban, General Contractor, Chile
FAQs (Frequently Asked Questions)
Q1: What makes the Four Waves profile better than traditional panels?
A: The four-wave profile enhances structural strength and drainage performance. It’s ideal for heavy snow or wind zones.
Q2: Can I choose the core material based on my insulation needs?
A: Absolutely. PU/PIR is ideal for high thermal insulation, while Rock Wool provides both fire resistance and soundproofing.
Q3: How long is the product lifespan?
A: With proper installation and maintenance, the panels can last over 25–30 years.
Q4: Is it compatible with solar panel systems?
A: Yes. Our roofing panels can be adapted with solar panel mounting brackets.
Q5: What is the lead time for bulk orders?
A: Generally 7–15 working days, depending on order size and customization.
