What is the difference between PIR, PU and Rockwool sandwich panels?

PU (polyurethane) panels offer high thermal efficiency at low weight. PIR (polyisocyanurate) panels deliver similar insulation with improved fire behaviour. Rockwool (mineral wool) panels are non-combustible and are typically chosen where fire resistance and acoustic performance are the priority.

Where does Paneltech manufacture its products?

All core products are manufactured at the Paneltech International LLC factory in Barka, Sultanate of Oman, where the company has operated since 2009.

Can Paneltech supply a complete building envelope package?

Yes. Paneltech produces sandwich panels, profile sheets, Z & C purlins, translucent sheets, matching flashings, roller shutter doors and accessories, allowing contractors to source the roof, wall and secondary steel package from one manufacturer.

What information is needed to request a technical proposal?

Share the project location, building use, roof and wall areas, required insulation type and thickness, profile preference, colour and coating, fire or thermal requirements and the delivery schedule. The technical team will recommend the most suitable panel system.

Fire Retardant B1 Grade Waterproof Sound Insulation PU Sandwich Wall Panel Decorative Metal Cladding Board Easy Install

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Fire Retardant B1 Grade Waterproof Sound Insulation PU Sandwich Wall Panel Decorative Metal Cladding Board Easy Install

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Product Description

Upgrade your building with insulated sandwich panels! Made of premium polyurethane sandwich panel, they combine lightweight design with superior insulation. Perfect for factories, warehouses, or homes, offering fireproofing, sound insulation, and fast installation for a smarter building.

Product Highlights

Metallic Decorative Finish PU sandwich wall panel is a metallic decorative wall panel made of PU foam and galvanized steel, combining a 0.23mm galvanized steel surface with a PU foam core for a metallic decorative finish, and it is formaldehyde free. This decorative wall panel is supplied by our factory.

Available Models Product models: PU sandwich-normal 16mm, PU sandwich-sand 16mm, PU sandwich-normal 20mm and PU sandwich-sand 20mm, covering both normal surface and sand surface options in these four models.

Hot-Selling Specifications Panel thickness of 16mm or 20mm; panel width of 383mm; panel length of 2900mm with customizable option; panel weight of 3.1kg or 3.3kg per square meter by model.

Surface Texture Series Surface texture series include Standard brick series, Three bricks series, Water ripple series, Wood grain series, Orange peel series, Stone wall brick series, Tablet series, Stacked stone series, Great Wall board series, Colorful stone series and 45cm indoor flat plate series.

Installation & Accessories Installed with nail and structural adhesive; matching accessories include nail, silicone adhesive and edging strip; the wall must be kept dry and clean before installation as required for this wall panel.

Packaging & Container Loading Woven bag packaging and cardboard box packaging; packing quantity is 10 panels per package. 20GP loads 1500 sqm and 40HQ loads 3600 sqm for normal surface panels; 20GP loads 1200 sqm and 40HQ loads 2880 sqm for sand surface panels.

Buyer Value: Lightweight panels of 3.1kg or 3.3kg per sqm, customizable panel length, metallic decorative surface and multiple texture series including indoor specific series give buyers flexible choices for wall decoration projects.

Our sandwich panels feature an actual width of 412-415mm, installation width 383-385mm, thickness 16mm/20mm, and lengths of 2900mm or 5800mm (customizable). Available in various colors and patterns, PU sandwich wall panel ensures excellent thermal insulation, metal sandwich panels offer superior structural strength, and we provide OEM/ODM one-stop services for efficient building solutions.

Product Specifications

Product Name	PU Sandwich Panel
Design Style	Solid color, brick grain, stone grain, wood grain or customized
Regular colors	As the client required
Thickness	10mm/16mm/20mm/25mm/30mm/50mm
Effective width	383mm
Length	As the client required
Fire-proof level	Grade B
Surface Material	Galvalume steel sheet
Back Material	Aluminium foil fibre cloth
Core material	Rigid Polyurethane Foam
Painted surface	High weather resistant polyester paint

Key Benefits

1. Energy Saving

Insulated polyurethane sandwich panels reduce heating and cooling costs effectively.

2. Fire Safety

Compliant with fire-resistant regulations for sandwich panels walls and roofs.

3. Customizable Sizes

Available in various thicknesses (20mm, 30mm, 50mm) to fit your construction needs.

4. Low Maintenance

Durable surface ensures long-term performance without frequent repairs.

5. Eco-Friendly

PU core and metal sheets are recyclable, contributing to sustainable construction.

Factory Scale 12,000 square meters Factory with 50 Advanced Production Lines.

Production Capacity Stable supply with 100 Containers Shipped Monthly to Europe, South America, and the Middle East.

Full Transparency We provide exclusive photos and videos from material preparation to loading for every order.

Rigorous Testing Self-owned detection center ensures every steel sandwich panel and aluminum sandwich panel meets the wall sandwich panel price value expectations.

Production Display

Packaging & Global Logistics Standard Export Packing: Protective film + palletizing for safe transport of sandwich panels walls.
Fast Delivery: Near Linyi Logistics center for competitive shipping rates and fast turnaround.

Applications & Usages

• Industrial Plants: Using metal sandwich panels and insulated sandwich wall panels for large-scale warehouses.

• Residential Housing: Lightweight sandwich panels house construction with pu insulated sandwich panel.

• Commercial Buildings: Paneles sandwich pared exterior for modern office facades.

• Roofing Systems: Roof sandwich panel and sandwich panels roof for high-load capacity.

About The Supplier

Tangshan Haofa International Trade Co., Ltd. is a leading building materials trading enterprise with 25 years of expertise in the decoration and construction industry, offering a comprehensive range of premium products including WPC wall panels, PVC wall panels, SPC wall panels, light steel keels, gypsum boards, and indoor & outdoor flooring solutions. We specialize in one-stop procurement services that cover all material needs for building and renovation projects, backed by a seasoned professional team and a well-established global supplier network. Committed to delivering top-tier quality, competitive pricing, and stable supply chain support, we serve diverse clients worldwide, from contractors and developers to interior design firms, as their reliable partner for all construction material requirements.

Company Overview

Competitive Advantages

Frequently Asked Questions

Which core material should I choose — PU, PIR, EPS, or Rock Wool?

The right choice depends on your project type and insulation needs.

• PU (Polyurethane): Offers the best thermal insulation, making it the top choice for cold rooms, freezer warehouses, and cold chain logistics. It is lightweight and works well for both structural panels and exterior wall cladding.

• PIR (Polyisocyanurate): The upgraded version of PU with improved fire resistance and lower smoke emission. Choose this if your project has stricter fire safety requirements.

• EPS (Expanded Polystyrene): The most cost-effective option — ideal for temporary buildings, budget prefab houses, and exterior insulation cladding where fire rating requirements are moderate.

• Rock Wool: Non-combustible and offers excellent sound absorption. It is preferred for steel structure factories, fire-rated partition walls, and high-rise building exteriors.

For exterior wall insulation cladding panels, the typical thickness range is 10mm to 30mm, with 16mm being the most common specification in international trade. Tell us your application, climate zone, and fire rating requirement — we'll recommend the best match.

How do I determine the right panel thickness?

Panel thickness directly affects thermal insulation performance and structural strength:

• Chilled cold room (0–5°C): 75–100mm in PU or PIR.

• Freezer room (−18 to −25°C): 100–150mm in PU or PIR.

• Deep-freeze (−40°C or below): 150–200mm in PU or PIR.

• Exterior wall of industrial buildings: 50–100mm in Rock Wool or PU.

• Roof panel: 50–75mm in Rock Wool, PU, or EPS.

• Interior partition or clean room: 50mm in Rock Wool or PU.

For exterior wall cladding panels used on existing facades, the most common export specification is 16mm (available from 10mm to 30mm). Share your target U-value or climate zone, and our team will provide a tailored thickness recommendation.

What about fire safety performance?

Fire performance depends on your chosen core material:

• Rock Wool: Non-combustible (made from basalt). Does not burn or emit toxic smoke. Ideal for projects with strict fire regulations.

• PIR (Polyisocyanurate): Higher fire resistance than standard PU, chars upon flame contact, and is self-extinguishing with low smoke emission.

• PU (Polyurethane): Formulated with flame retardant additives, making it self-extinguishing for standard warehouse and cold storage applications.

• EPS (Expanded Polystyrene): Delivers basic fire performance with fire-retardant additives for moderate requirements.

Does your company support OEM services?

Yes, we offer comprehensive one-stop OEM customization. Our independent R&D center provides end-to-end solutions for products including wall panels and decorative trims, handling custom design, material selection, surface finishes, and scalable mass production.

What is your MOQ, lead time, and sample policy?

• MOQ: Standard panels start from 100–300 sqm depending on specification. Mixed specifications in one container are welcome; we recommend consolidating 300–500 sqm for optimized sea freight.

• Lead Time: Standard specifications ship within 2–4 weeks (regular orders deliver within 5–15 days after advance payment). Large or heavily customized orders take 4–6 weeks.

• Samples: Evaluation samples in 300×300mm or 600×600mm are ready in 3–7 working days. Sample cost is refundable against your bulk order.

How do you protect customers' rights after payment?

We use the Alibaba Trade Assurance platform, which guarantees quality inspection, on-time delivery, and fund security with full process traceability, ensuring comprehensive protection of customer rights from order placement to shipment arrival.

Fire Retardant B1 Grade Waterproof Sound Insulation PU Sandwich Wall Panel Decorative Metal Cladding Board Easy Install

Product Description

1. Energy Saving

2. Fire Safety

3. Customizable Sizes

4. Low Maintenance

5. Eco-Friendly

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