Sandwhich Panels Panelen Metal Roof Wall 2025

Shanghe sandwhich panels are high-performance, factory-engineered building materials designed for fast installation and superior thermal performance. Built to meet the needs of modern construction in residential, commercial, industrial, and modular projects, they combine strength, insulation, and durability in a single product.

What are sandwhich panels

Sandwich panels are composite construction materials made up of two outer skins bonded to an insulating core. This layered structure delivers excellent structural strength with minimal weight, making them ideal for wall cladding, roofing, and partition systems. Unlike conventional walls, sandwich panels are manufactured to precise dimensions, ensuring consistent quality, reduced labor times, and long service life.

Core Components

Each Shanghe insulated sandwich panel includes:

• Outer Skins – High-strength coated steel or aluminum sheets for weather resistance and mechanical durability.
• Insulating Core – A lightweight yet high-performance thermal insulation material, bonded between the outer skins to provide stability and energy efficiency.

Common Materials Used

Outer skins:

• Galvanized steel (pre-painted or coated for corrosion resistance)
• Aluminum (lightweight and corrosion proof)

Core insulation options:

• PU (Polyurethane) – High thermal insulation efficiency
• PIR (Polyisocyanurate) – Enhanced fire resistance and thermal stability
• Rock Wool – Non-combustible, sound-absorbing, and fireproof
• EPS (Expanded Polystyrene) – Cost-effective and lightweight insulation

Why Choose Shanghe Sandwich Panels

Shanghe stands out among sandwich panel manufacturers for:

• Superior Insulation – Reduced energy costs and stable indoor climate.
• Tested Fire Safety – Options available with certified A1 and B1 fire ratings.
• High Strength with Low Weight – Easier handling and reduced structural load.
• Precision Engineering – Factory-cut panels ensure exact fit and clean finish.
• All-Weather Durability – Resistant to moisture, corrosion, and pests.
• Custom Options – Wide range of sizes, thicknesses, and color finishes.
• Sustainability – Use of eco-friendly materials and recyclable components.

Shanghe thermal insulation panels for buildings are the ideal solution for fast-track, energy-efficient construction — whether you need prefabricated wall panels for a commercial facility, fire resistant sandwich panels for safety-critical spaces, or lightweight construction panels for modular builds.

Key Features and Benefits of Sandwich Panels

Superior Thermal Insulation Performance

Shanghe sandwich panels are built for maximum energy efficiency. The insulated core significantly reduces heat transfer, helping buildings stay cooler in summer and warmer in winter. This means lower HVAC costs and better indoor comfort year-round. Common thermal conductivity values range from 0.018–0.045 W/m·K depending on the core material (PU, PIR, Rock Wool, EPS).

Fire Resistance and Safety Certifications

Safety is a top requirement in U.S. construction, and our fire-resistant sandwich panels meet strict standards like EN13501 and ASTM E84. Rock Wool cores achieve A1 non-combustible ratings, while PIR panels can meet B1 Class flame retardancy. These panels slow down fire spread, giving occupants more time to evacuate and reducing property damage risks.

Lightweight yet High Strength Design

Despite their solid structure, Shanghe panels are significantly lighter than concrete or brick walls, reducing structural load requirements. The high strength-to-weight ratio makes them ideal for both roof systems and wall cladding without compromising durability.

Quick and Easy Installation

Panels are factory-prepared in standard or custom sizes, with precise joint systems for fast, clean installation. This shortens build times for commercial, industrial, and modular projects, lowering labor costs.

Moisture and Corrosion Resistance

Metal skins are coated steel or aluminum with anti-corrosion finishes, making them ideal for humid or coastal climates. Closed-cell cores like PU, PIR, and EPS resist water absorption, protecting structural integrity over time.

Long Service Life and Low Maintenance

With proper installation, Shanghe prefabricated wall and roof sandwich panels can last 25–40+ years. Minimal maintenance is needed—just occasional cleaning and inspection. This makes them a solid investment for long-term facility use.

Environmentally Friendly and Sustainable

We use CFC-free foam cores and recyclable metal skins. The excellent insulation performance lowers energy consumption, reducing the building’s carbon footprint. Rock Wool and EPS options can be produced with recycled content, supporting green building certifications like LEED.

Types of Sandwich Panels by Shanghe

Shanghe offers a complete range of insulated sandwich panels to meet different building needs across residential, commercial, and industrial projects in the U.S. Each type is engineered with specific insulation properties, fire ratings, and load-bearing abilities—so you can choose the right panel for your application.

PU Sandwich Panels

• Core Material: Polyurethane (PU) rigid foam
• Best For: Projects requiring high thermal insulation and energy efficiency
• Key Benefits:
  • Low thermal conductivity – keeps heat in during winter and out during summer
  • Lightweight for easy handling and reduced structure load
  • Smooth finish for modern walls and roofs

PIR Sandwich Panels

• Core Material: Polyisocyanurate (PIR) rigid foam
• Best For: Applications needing enhanced fire resistance and thermal stability
• Key Benefits:
  • Higher fire resistance than PU, often B1 or higher rating
  • Maintains strength at higher temperatures
  • Ideal for industrial, commercial, and cold storage facilities

Rock Wool Sandwich Panels

• Core Material: High-density mineral wool
• Best For: Projects where fire safety and sound insulation are top priorities
• Key Benefits:
  • Non-combustible – meets A1 fire classification
  • Excellent acoustic insulation
  • Withstands high temperatures; suitable for fire-rated walls and partitions

EPS Sandwich Panels

• Core Material: Expanded Polystyrene (EPS) foam
• Best For: Cost-effective insulation in large-scale projects
• Key Benefits:
  • Lightweight and easy to install
  • Good thermal insulation performance for budget-conscious builds
  • Commonly used in modular housing, temporary structures, and agriculture facilities

Custom Sizes and Thickness Options

Shanghe provides a wide selection of dimensions to match local U.S. building codes and custom design requirements:

Custom finishes, colors, and joint profiles are available to match project aesthetics and performance needs. You can also specify core density for added thermal, acoustic, or structural performance.

Technical Specifications for Shanghe Sandwich Panels

Shanghe sandwich panels are built to meet U.S. construction standards with precise specifications to ensure performance, durability, and safety. Below are the key technical details.

Dimensions and Thickness Range

We offer a wide range of sizes to fit different building needs.

Custom sizes available upon request.

Thermal Conductivity

• PU / PIR cores: 0.020–0.024 W/m·K – great for energy-efficient walls and roofs.
• Rock Wool cores: 0.035–0.040 W/m·K – higher density for better fire and sound performance.
• EPS cores: 0.030–0.038 W/m·K – affordable and reliable insulation.

Fire Resistance Ratings

• Rock Wool Sandwich Panels: Class A1 non-combustible per EN standards.
• PIR Panels: Class B1/B-s2-d0 fire performance.
• PU and EPS Panels: Can be treated for improved fire resistance.

Sound Insulation Performance

• Rock Wool Panels: Up to 35–40 dB sound reduction – ideal for warehouses and noisy environments.
• PU / PIR Panels: Approx. 25–30 dB sound reduction.

Mechanical Properties

• Compressive Strength: ≥ 150 kPa (core material minimum).
• Flexural Strength: High stiffness for roof and wall applications, supports heavy snow loads when properly installed.

Surface Finishes and Color Options

• Outer Skins: Pre-painted galvanized steel, aluminum-zinc coated steel, or aluminum sheets.
• Finishes: Smooth, embossed, or lined patterns.
• Standard Colors: White, silver, gray, beige. Other RAL colors available for branding or design match.
• Coating Options: PVDF for UV resistance, PE for cost-effective use, or food-grade coatings for cold storage.

Applications of Sandwich Panels

Sandwich panels are a versatile building material widely used across multiple sectors in the United States for their insulation performance, fire resistance, and quick installation. Shanghe offers panel solutions that adapt to specific building needs, ensuring durability, energy efficiency, and compliance with industry standards.

Residential, Commercial, and Industrial Buildings

Shanghe insulated sandwich panels are ideal for walls and roofing in homes, offices, factories, and retail spaces. They help maintain indoor temperatures, reduce energy costs, and provide a clean, modern look without heavy structural requirements.

Benefits for these sectors:

• Lower heating and cooling expenses with superior insulation
• Lightweight yet structurally strong, minimizing the need for heavy framing
• Multiple surface finishes and colors for design flexibility

Cold Storage and Refrigeration Rooms

For temperature-sensitive storage, Shanghe PU and PIR panels offer excellent thermal performance, helping maintain stable internal conditions for food, beverages, and pharmaceuticals.

Key advantages:

• Thermal conductivity as low as 0.018–0.022 W/m·K
• Air-tight panel joints to prevent thermal bridging
• Moisture-resistant materials to avoid mold growth

Clean Rooms and Pharmaceutical Factories

Shanghe Rock Wool and PIR panels support environments with strict hygiene and contamination control requirements.

Features:

• Smooth, non-porous finishes for easy cleaning
• Fire-resistant ratings up to A1 (non-combustible) for high safety
• Compliance with FDA and GMP cleanroom standards

Warehouses and Logistics Centers

In logistics, prefabricated wall panels help control temperatures, reduce noise, and speed up project completion times.

Why use them here:

• Large-format panels for rapid installation
• Low maintenance and high impact resistance
• Suitable for both new builds and retrofits

Agricultural Buildings and Livestock Housing

Moisture-proof and corrosion-resistant sandwich panels protect farming operations from varying weather conditions while keeping livestock comfortable.

Benefits for agriculture:

• Resistant to ammonia and organic vapors
• Insulation keeps barns warm in winter, cool in summer
• Lightweight structure suitable for rural installation sites

Modular and Prefabricated Buildings

Shanghe panels fit perfectly into modular construction systems for quick-assembly housing, offices, or pop-up facilities.

Advantages:

• Pre-cut sizes for exact fit, reducing waste
• Minimal skilled labor required for assembly
• Compatible with portable and temporary structures

Installation and Maintenance of Sandwich Panels

Installing sandwich panels the right way ensures maximum performance and a longer service life. Whether you’re putting up PU, PIR, Rock Wool, or EPS panels for walls or roofing, following the right process can save time, labor, and costly mistakes.

Step by Step Installation Guide

1. Prepare the surface – The base or steel structure must be level, clean, and free of debris.
2. Measure and align – Mark alignment lines to ensure panels are straight and flush.
3. Place starter panel – Begin from one corner or edge and set the first panel precisely, as it will guide all others.
4. Seal joints – Use approved sealants or gasket strips between panels for optimal insulation and weather-proofing.
5. Fix panels securely – Use self-drilling screws with washers, placed at recommended intervals to avoid warping.
6. Check gaps – Minimize and seal any gaps to maintain thermal and sound insulation.
7. Install trims and flashings – Add finishing trims for a neat look and to protect against moisture intrusion.

For roof panels, follow the same procedure but ensure an overlap of at least one corrugation and use additional sealing where needed. You can explore roof-specific panels like the sandwich panel roof sheet for more details.

Recommended Installation Tools and Techniques

• Cordless drill/screwdriver with adjustable torque
• Tape measure and chalk line for accurate alignment
• Sealant gun for continuous sealing
• Safety gloves and eye protection
• Lifting equipment for large or heavy panels
• Always fasten from the ridge toward the overlap to ensure tight sealing

Pro tip: Work in teams of at least two people for faster installation and better handling of panels.

Maintenance Tips for Durability and Efficiency

• Inspect annually for loose fasteners or damaged sealants.
• Clean panels with mild detergent and water – avoid abrasive cleaners.
• Clear debris from roofs and gutters to prevent water buildup.
• Reapply sealants if hardening or cracking is visible.
• Avoid harsh impacts that may dent or compromise the panel skin.

Proper care will help maintain thermal insulation, prevent corrosion, and extend service life beyond the standard expectancy.

Warranty and After Sale Support

Shanghe offers a manufacturer warranty covering defects in materials and workmanship. Warranty terms vary by panel type but typically include:

• Coverage for thermal insulation and structural integrity
• Fire resistance performance as per product spec
• Replacement or support if panels fail under normal use conditions

Our team also offers technical support, helping you with installation tips, custom fit solutions, and fast turnaround on replacement needs.

For wall-specific options, check products like our foam sandwich wall panels designed for quick assembly and long-lasting insulation performance.

Compliance and Certifications for Sandwich Panels

Shanghe sandwich panels are manufactured to meet strict international quality and safety standards, ensuring they are suitable for a wide range of U.S. building projects. Every panel goes through rigorous testing so it can be trusted for both performance and safety.

International Standards Compliance

Our panels comply with widely recognized manufacturing and performance standards, including:

• ISO 9001 – Quality management systems for consistent production and reliability.
• ASTM standards – Covering thermal performance, mechanical strength, and weather resistance for U.S. building codes.
• EN standards – Ensuring product safety and durability for global compatibility.

Fire Safety and Building Code Certifications

Shanghe offers fire resistant sandwich panels tested and classified according to global and U.S. requirements. This includes:

• A1 / B1 fire ratings for superior fire protection depending on the core material.
• NFPA compliance for U.S. fire safety codes.
• Certification for use in both commercial and residential projects, meeting state and national building regulations.

Environmental and Health Safety Approvals

We make sure our panels are safe for people and the environment:

• Low-VOC materials to support indoor air quality.
• Asbestos-free and non-toxic cores and coatings.
• Compliance with RoHS and related environmental guidelines to reduce harmful substances.
• Energy-saving thermal properties that contribute toward LEED certification for sustainable building projects.

Customization Options for Sandwich Panels

At Shanghe, we understand that U.S. construction projects have different design, insulation, and size needs. That’s why our sandwich panels can be tailored to fit exact specifications—whether it’s for walls, roofing, or specialized applications like cold storage or clean rooms.

Tailor Made Dimensions, Core Materials, and Finishes

• Custom panel sizes: Choose the exact length, width, and thickness to match your project’s framing and load requirements.
• Core material options: PU, PIR, Rock Wool, or EPS cores based on insulation, fire resistance, and budget needs.
• Surface finishes: Smooth, ribbed, embossed, or micro-rib profiles, available in various corrosion-resistant coatings.

Example Custom Size Range:

Color Matching and Branding

• Wide color palette in RAL standards for precise color matching to your corporate or architectural design.
• Logo printing and branding available for projects that require recognizable company identity in panel design.
• Gloss, matte, or textured surface finishes to suit different building styles.

Packaging and Logistics Solutions

• Protective packaging: Panels are wrapped or palletized to prevent scratches and moisture damage during transport.
• Delivery ready for installation: Panels arrive cut-to-size, labeled, and packed in delivery sequence for faster on-site installation.
• Flexible shipping options: LTL, full truckload, or container shipping with inland and port delivery across the U.S.

Customer Testimonials and Case Studies for Shanghe Sandwich Panels

Real Project Examples

Shanghe sandwich panels have been installed across a wide range of U.S. projects, delivering consistent results for residential, commercial, and industrial applications. Some examples include:

• Cold Storage Facility in Texas – Used PU sandwich panels for superior thermal insulation, keeping energy costs down and meeting FDA food safety requirements.
• Distribution Center in Illinois – Specified Rock Wool panels for fire safety compliance with local building codes while providing excellent noise reduction for a busy warehouse environment.
• Modular Classrooms in California – Lightweight EPS panels allowed quick installation, minimal disruption, and a cost-effective solution for temporary learning spaces.
• Pharmaceutical Clean Room in New Jersey – PIR panels offered strict temperature control, easy-to-clean surfaces, and long-term structural stability.

Client Feedback on Performance and Service

Customer feedback consistently highlights performance, reliability, and ease of use as key strengths of Shanghe sandwich panels:

• Outstanding Insulation – Many clients report significant energy savings after switching to Shanghe insulated sandwich panels.
• Fire Safety Confidence – Contractors value the panels’ certified fire ratings when bidding on projects with strict safety codes.
• Fast Installation – Builders appreciate the lightweight design and user-friendly panel connections, reducing labor hours.
• Durability in Harsh Conditions – Panels show excellent resistance to moisture, corrosion, and extreme weather, even in coastal and industrial locations.
• Responsive Support – The Shanghe team is noted for quick responses on technical questions and providing clear installation guidance.

Typical Feedback Themes:

Request a Quote or Contact the Shanghe Sales Team

If you’re ready to explore how Shanghe insulated sandwich panels can fit your project, our sales team is here to help.

• Fast response to all inquiries
• Custom recommendations based on your building type, climate zone, and project budget
• Accurate pricing with a clear cost breakdown per square meter or per panel

You can call us directly, send an email with your project details, or fill out our online request form for a quick quote.

---

Download the Technical Datasheet

Get full access to the technical specifications of our PU, PIR, Rock Wool, and EPS sandwich panels in one place. The downloadable datasheet includes:

• Dimensions and thickness range for wall and roof panels
• Thermal conductivity values and R-value ratings
• Fire resistance classifications (A1, B1)
• Sound insulation data
• Detailed mechanical strength metrics
  This is a must-have for contractors, architects, and builders who need verified product data before installation.

---

Locate a Distributor or Showroom

We work with trusted distributors and stocking partners across the United States.

Access installation guidance and after-sales support through local partners

Find a local showroom to see panel samples and finishes in person

Connect with a regional distributor for faster delivery and better freight rates

• High thermal performance for both hot and cold climates
• Professional packaging preventing onsite damage
• Flexible customization of dimensions and finishes
• Reliable lead times and delivery schedules

These real-life results show why Shanghe sandwich panels are trusted by contractors, builders, and facility owners across the U.S. for both new construction and retrofit projects.

FAQs on Sandwich Panels

Below are some of the most common questions we get from customers in the U.S. about sandwich panels. Whether you are planning a new build, upgrading insulation, or evaluating costs, these FAQs cover the key info you need before making a decision.

What is the thermal performance of sandwich panels

Our insulated sandwich panels deliver low thermal conductivity thanks to high-performance cores like PU, PIR, Rock Wool, or EPS.

• PU/PIR panels: Approx. 0.018–0.024 W/m·K thermal conductivity.
• Rock Wool panels: Around 0.035–0.040 W/m·K but with the best fire resistance.
• EPS panels: About 0.030–0.040 W/m·K, an economical insulation option.
  These values help meet or exceed most U.S. energy efficiency requirements for residential, commercial, and industrial buildings.

How long does installation take

Installation speed depends on the project size and complexity. Since our prefabricated wall and roof sandwich panels are lightweight and easy to handle, they can be installed much faster than conventional wall systems:

• Small projects (garages, sheds): 1–2 days
• Medium projects (stores, offices): 3–5 days
• Large industrial buildings: 1–2 weeks
  With the right crew and tools, you can cover large wall or roof areas quickly, reducing overall labor costs.