Baixinxin Metal Materials (Jinan) Co., Ltd.

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PU (Polyurethane) roof panels

PU (Polyurethane) roof panels are high-efficiency sandwich panels featuring a rigid polyurethane foam core injected between two outer protective metal sheets.

Classification :

Sandwich Panel

WhatsApp : +8615166558267

E-mail : abby@bxxsteel.com

PRODUCT DETAILS

PU (Polyurethane) roof panels are high-efficiency sandwich panels featuring a rigid polyurethane foam core injected between two outer protective metal sheets. They are the industry standard for commercial, industrial, and cold-storage roofing due to their unmatched thermal insulation, lightweight structure, and rapid installation speed.

Standard Specifications

Property	Typical Range / Industrial Standards
Panel Thickness	40mm, 50mm, 75mm, 100mm, 150mm, up to 200mm
Effective Width	1000mm standard (950mm to 1050mm)
Core Material Density	38 kg/m³ to 42 kg/m³
Exterior Metal Facing	0.4mm to 0.8mm pre-painted galvanized/galvalume steel
Interior Metal Facing	0.35mm to 0.6mm steel, or aluminum foil for budget/agricultural applications
Fire Classification	Class B1 (PIR variant) or Class B2/B3 (PUR variant)

PU roof systems are configured into specialized variants based on your building application:

1. Standard PU Sandwich Panels (PIR/PUR)

PUR (Polyurethane): Standard formulation providing exceptional thermal insulation and mechanical properties.
PIR (Polyisocyanurate): An advanced chemical variation of PU with significantly improved fire performance. PIR chars instead of melting when exposed to fire, drastically reducing smoke production and flame spread.

2. Corrugated Overlapping System

Features 3-rib or 5-rib high corrugated outer metal sheets. This structural shape maximizes rainwater drainage and allows panels to span large distances between purlins without sagging.

3. Joint & Locking Formats

Hidden Fastener Systems: Interlocking joints completely cover the installation screws. This prevents water leakage, eliminates thermal bridges, and creates a clean, seamless appearance.
Cam-lock Systems: Heavily utilized in walk-in coolers, freezers, and cleanroom roofs for an airtight, hermetically sealed connection.

Shipping

STOCK

Production Line

Application Diagram

Customer Feedback

Service Process

Proposal Drawing

Raw Material Testing

Unloading

Assembly

Submerged Arc Welding

Fabrication

Rectification

Welding

Polish

Assembly Inspection

Blasting

Application

Paint Thickness Measurement

Flaw Detection

Finished Product

Packing

Send Out Goods

Delivery

FAQ

What is a pre-engineered steel structure?

Pre-engineered steel structure means that the material is fabricated completely or partially in a factory, ready to be assembled on-site. There are many advantages to this building type and method. It is much faster than conventional building, as the fabrication takes place within a factory with the use of specialised equipment, and work is not dependant on the weather. On-site construction is also executed much faster, and it is less labour intensive.

Is your price competitive with other companies?

Our business objectives are to give the best price with same quality and best quality with the same price. We can try the best to cooperate with you to reduce your cost.

How do we cooperate on certain project?

Firstly, please send us your project details, your requirements and design proposal. Then we will make a quotation.Finally we make a deal.

Do you supply installation service?

Yes, we do. But you will pay for our professional installation cost in advance in accordance with the payment term confirmed by both of us, then we will send the engineers and construction workers to supervise it.

Can I have a visit to your factory before the order?

Why not? Welcome to visit our factory. You can fly to Shanghai Pudong Intentional Airport, Hangzhou Xiaoshan International Airport or Wenzhou Longwan International Airport, then come to Lishui railway station through high speed train about 3 hours, 1 hour and 0.5 hour respectively, then we will pick you up at the railway station, hotel booking service is available.

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