GOODLIFE 4mm twin wall polycarbonate roof panels in red, green, and brown colors for patio and pergola roofing
GOODLIFE® Brand/ Polycarbonate Twin-Wall Sheets

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.

Factory Direct
10-Year Warranty
Global Shipping
24h Response

Product Overview

Durable and lightweight, our 4mm Twin Wall Polycarbonate Roof Panels offer excellent impact resistance, thermal insulation, and UV protection. Ideal for greenhouses, patios, pergolas, and more, these easy-to-install sheets provide long-lasting performance and energy efficiency. A smart choice for all-weather roofing needs.

Technical Specifications

material100% Virgin Polycarbonate (SABIC/Bayer)
thickness4mm
weight0.8kg/m², 0.85kg/m² or 0.9kg/m²
uv ProtectionOne layer (50μm, 60μm, 70μm)
width2100mm (Maximum)
lengthUnlimited / 5800mm / 11800mm
colorsClear, Bronze, Grey, White, Blue, Black, Green, Yellow, Orange, Red, Purple, Pink, Silver, Custom
layer ThicknessTop: 0.28mm±0.3mm, Bottom: 0.24mm±0.3mm
cavity Width6mm
min Radius700mm (Span 1500mm)
warranty10 Years

Why Choose GOODLIFE?

Optical Performance & UV Level

Transparent Goodlife sheets provide high light transmission (Clear 79%) and excellent longevity of gloss. 50mu to 70mu UV protection can be increased as required.
Optical performance testing of 50mu to 70mu UV protection layer on 4mm GOODLIFE polycarbonate twin-wall sheet

Beautiful Design & Color Options

Available in multiple colors including Transparent, Clear, Bronze, Grey, White, Blue, Black, Green, Yellow, Orange, Red, Purple, Pink, Silver, Opal, and Custom to meet customized shading needs.
Custom color options including blue, yellow, green, and transparent for 4mm twin-wall polycarbonate roof panels

Optimized Cavity & Structural Design

Produced on the OMIPA line. The 6mm cavity width and carefully calibrated top/bottom layer structures ensure maximum durability and flexibility.
Animation of OMIPA produced 4mm twin-wall polycarbonate sheet showing 6mm 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.

MaterialWeightK-Value (Thermal Insulation)
4mm Twin Wall PC Sheet0.9 kg/m²3.9 W/m²K
4mm Traditional Glass10.0 kg/m²5.8 W/m²K

Common Applications

Office & Stadium LightsSoundproof WallsParking LotsSafety ShieldsIndoor PartitionsGreenhouses
Commercial roofing application using lightweight 4mm twin-wall hollow polycarbonate sheets
Curved architectural roof demonstrating 700mm minimum bending radius of 4mm polycarbonate hollow sheets

Project Showcase

Location

Application

Total Area

Professional Installation

Prep Work: Ensure surface is clean, level, and smooth. Frame Installation: Fix aluminum, steel, or wood frame. Sheet Assembly: Align channels for drainage and ventilation. Fixing: Secure with bolts/screws fitted with rubber washers. Sealing: Use appropriate sealing agents.
Step-by-step installation guide for 4mm twin wall polycarbonate sheets on aluminum framing with rubber washers

Factory Production

4mm Polycarbonate twin-wall hollow Sheet Production Video

4mm Polycarbonate twin-wall hollow Sheet Production Video

Client Feedback

Elizabeth Roberts, Account Executive, reviewing GOODLIFE 4mm lightweight polycarbonate roofing panels
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?

A.

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?

A.

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?

A.

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.

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