
Polycarbonate Roof Panels – 4mm Durable Twin Wall Sheets
High-performance polycarbonate solution for industrial and architectural projects. UV-coated, impact-resistant, and 10-year warranty guaranteed. Factory direct supply with complete specifications.
Product Overview
Technical Specifications
| material | 100% Virgin Polycarbonate (SABIC/Bayer) |
| thickness | 4mm |
| weight | 0.8kg/m², 0.85kg/m² or 0.9kg/m² |
| uv Protection | One layer (50μm, 60μm, 70μm) |
| width | 2100mm (Maximum) |
| length | Unlimited / 5800mm / 11800mm |
| colors | Clear, Bronze, Grey, White, Blue, Black, Green, Yellow, Orange, Red, Purple, Pink, Silver, Custom |
| layer Thickness | Top: 0.28mm±0.3mm, Bottom: 0.24mm±0.3mm |
| cavity Width | 6mm |
| min Radius | 700mm (Span 1500mm) |
| warranty | 10 Years |
Why Choose GOODLIFE?
Optical Performance & UV Level

Beautiful Design & Color Options

Optimized Cavity & Structural Design

Energy-Saving & Weight Comparison
See how 4mm Twin Wall Polycarbonate excels in soundproofing, heat insulation, and weight compared to traditional 4mm glass.
| Material | Weight | K-Value (Thermal Insulation) |
|---|---|---|
| 4mm Twin Wall PC Sheet | 0.9 kg/m² | 3.9 W/m²K |
| 4mm Traditional Glass | 10.0 kg/m² | 5.8 W/m²K |
Common Applications


Project Showcase
Professional Installation

Factory Production
4mm Polycarbonate twin-wall hollow Sheet Production Video

Client Feedback

“My experience with the 4mm polycarbonate sheets from GOODLIFE factory has been very positive. The sheets offer exceptional strength and are surprisingly lightweight, making installation a breeze. I've used them for various purposes, including greenhouse panels and roofing, and they have performed excellently under different weather conditions.”
Elizabeth Roberts
Account Executive
Frequently Asked Questions
Q. Can the dimensions of your double-wall panel 4mm be 4ft x 8ft?
Of course! We are aware that 4ft x 8ft is a popular size in many nations. But, as the fixed size on our OMIPA line is 6.89ft, cutting to 4ft leaves waste. We recommend 6.89ft, 3.445ft, or 2.29ft to offer the best pricing.
Q. Are there any length losses in the panels? Can the length be picked at will?
The items made by our manufacturing line are of an infinite length, so the length is able to be selected in any way without losing anything.
Q. What is the minimum purchase amount for hollow 4mm panels?
The minimum quantity is typically 2-3 tons (about 180 sheets of 2100mm x 5800mm). For regular colors, we can bundle your order with others. For specific custom shades, the minimum is 5 tons.


