POLYCARBONATE Skylight Roof Sheet
Lightweight, durable polycarbonate skylight roof sheets that deliver exceptional natural light transmission for industrial and commercial buildings — reducing artificial lighting costs and enhancing indoor environments.
Product 01
Embossed Translucent Sheet
2mm Standard · UV Resistant · Embossed
Product 02
Multiwall Polycarbonate Sheet
6mm · 8mm · 10mm ·
Heat Blocking
Product 03
Skylight SunInside System
500mm Duct · 3M India ·
750–1200 sq ft
0
%+
Min. Light Transmission SunInside Dome
0
%
Mirror Film Luminous Reflectivity
0
Max Coverage Area Sq Ft (SunInside)
0
Product Types 2mm · 6–10mm · Tubular
50
India Technical Collaboration Partner
Polycarbonate Embossed Translucent Skylight Sheets
Transparent polycarbonate skylight profile sheets are an effective way to allow natural light into aluminium roofs. Embossed sheets offer controlled light transmission, contributing to energy efficiency by minimizing the need for artificial lighting during daylight hours — leading to significant savings on energy costs.
Transparent polycarbonate profile sheets are available in a standard thickness of 2mm with embossing, making them compatible with standard metal roofing profiles for seamless integration.
Its maintenance-free design eliminates clogging and ensures a long lifecycle with consistent performance — making it an ideal choice wherever lasting, reliable roof ventilation is required.
Multiwall Polycarbonate Roofing Sheets
Multiwall polycarbonate sheets are engineered to block heat while permitting light wavelengths to penetrate — making them an excellent energy-efficient solution.
Particularly ideal in 6mm and 8mm thicknesses for applications such as wiregrass in north light sheds.
6 mm
8 mm
10 mm
Continuous Natural Airflow
Delivers uninterrupted high-volume airflow at all times. Five metres of Hat Top Airflow Ridgevent equals the performance of two standard whirlybirds.
Zero Power Consumption
No electricity, no moving parts, no noise. The Hat Top Ridge Vent harnesses natural wind and thermal convection for completely passive operation.
Universal Roof Compatibility
Compatible with all roofing profiles — corrugated, tiled, colorbond, and more — making it a truly versatile solution for any structure.
Maintenance-Free Design
The clog-resistant design eliminates the need for any ongoing maintenance, providing a reliable long-lifecycle performance from day one.
Mould Prevention
Actively prevents mould build-up within ceiling cavities by maintaining consistent airflow, promoting healthier indoor living and working conditions.
Attractive Roofline
Strategically placed at the roof's peak with closed underneath louvers. Virtually invisible from ground level — a seamless, aesthetic roofline finish.
Reduces Internal Pressure
Effectively decreases internal structural pressure, contributing to a more stable and comfortable indoor environment year-round.
Weather-Resistant Materials
Manufactured from colour-coated galvanised steel or Galvalume — engineered for long-term durability against harsh weather and UV exposure.
Easy Installation
Quick and straightforward installation on both new and retrofit roofing systems, with maximum utilisation of existing structural arrangements.
Exceptional shading properties with superior heat reflection compared to competing materials — keeps interiors cooler without sacrificing natural light.
An aesthetically pleasing finish — multiwall construction provides a clean, professional appearance suitable for modern architectural applications.
Eco-friendly composition — engineered to reduce energy consumption by maximizing natural light intake and minimizing solar heat gain simultaneously.
Available in 6mm, 8mm, and 10mm thicknesses to suit varying structural, thermal, and light transmission requirements across different project types.
Ideal for north light sheds — particularly in 6mm and 8mm configurations for wiregrass applications, delivering consistent diffused light without glare.
Serving India's Most Critical Industries
Skylight SunInside Daylighting System
The Skylight SunInside is a tubular daylighting system developed through technical collaboration with 3M India Ltd. It channels sunlight indoors, illuminating spaces that traditional windows or skylights cannot reach.
Collection System
A UV-resistant, clear polycarbonate dome with a flange captures sunlight entering the system.
| Light Transmission | Minimum 80% |
|---|---|
| Refractive Index | 1.58 |
| Service Temperature | -10°C to 80°C |
| Thickness at Flange | 2mm |
Guidance System
Aluminium sheet coated with a high-reflectivity mirror film guides sunlight through the duct.
| Al Sheet Thickness | 0.4mm |
|---|---|
| Luminous Reflectivity | 99% |
| Bandwidth Reflectivity | Over 90% |
| Wavelength Range | 400–775 nm |
| Angle Range | 0–80 degrees |
Diffuser
A lens diffuser crafted from UV-stabilized polycarbonate film ensures uniform light dispersion into the space below.
| Diffuser Type | Lens |
|---|---|
| Material | UV-stabilized polycarbonate film |
| Function | Uniform light dispersion |
Roof Mounting System
Airtight mounting prevents dust infiltration and insulates the tube from heat transfer. Installed at a variable-angle elbow to match roof slope.
| Mounting Angle | Variable — matches roof slope |
|---|---|
| Base Profile | FRP — matches roof sheet |
| Max Hole Diameter | Up to 675mm |
| Dust Protection | Airtight setup |
SunInside Technical Data
| Collection System — Dome Specifications | |
|---|---|
| Transmission | Minimum 80% |
| Refractive Index | 1.58 |
| Service Temperature | -10°C to 80°C |
| Flange Thickness | 2mm |
| UV Resistance | Yes — UV-resistant polycarbonate |
| Guidance System — Mirror Film Specifications | |
|---|---|
| Al Sheet Thickness | 0.4mm |
| Luminous Reflectivity | 99% |
| Bandwidth Reflectivity | Over 90% |
| Wavelength Range | 400–775 nm |
| Angle of Incidence | 0–80 degrees |
| Protection | Plastic cover until installation |
500mm
Duct Diameter (4 ft long duct)
Typical Coverage Area: 750 sq ft to 1,200 sq ft, depending on Lux requirement and height of installation.
The system is installed at a variable-angle elbow to match the roof's slope, keeping the daylight tube parallel to the ground.
Assembly is placed on an FRP base profile matching the roof sheet, with a hole of up to 675mm in diameter cut into the roof for installation.
This innovative daylighting system channels sunlight indoors, illuminating spaces that traditional windows or skylights cannot reach.
Why Choose Polycarbonate Skylight Roofing?
Polycarbonate skylight roof sheets deliver measurable energy savings, worker safety improvements, and superior natural light distribution compared to conventional alternatives.
Natural Light & Energy Savings
Minimizes the need for artificial lighting during daylight hours, leading to significant savings on energy costs across large industrial and commercial floor areas.
Heat Blocking with Light Transmission
Multiwall sheets block solar heat gain while permitting visible light wavelengths to penetrate — maintaining a comfortable indoor temperature without sacrificing daylighting.
Eco-Friendly & Sustainable
Eco-friendly composition reduces dependence on artificial light and air conditioning, contributing to sustainable building operations and lower carbon footprint.
Lightweight & Durable
Polycarbonate sheets deliver lightweight protection with excellent weather resistance — easy to install and designed for long-term performance in demanding environments.
UV Protection
UV-resistant polycarbonate material protects both the sheet's performance and the building interior from harmful UV radiation over a long service life.
Aesthetically Pleasing Finish
Multiwall and embossed profiles deliver a clean, attractive appearance on the roof surface while allowing maximum natural light to fill the interior space below.
Skylight Integration — Key Benefits Over FRP or Polycarbonate Sheets
Enhanced Worker Safety
Skylight SunInside integration offers enhanced safety for workers on the roof compared to FRP or conventional polycarbonate skylight sheets.
Prevention of Water Leakage
The SunInside mounting system prevents water leakage during installation — a critical advantage over traditional skylight sheet installations.
Why Leading Industries Trust Geometric Steels
20 Years of Innovation & Excellence
Feature
Product Range
Flashing Length
Manufacturing
Technical Support
Customization
Quality Certifications
Experience
Geographic Reach
Thermal Innovation
Sustainability
Geometric Steels
64 products – Complete solution
5 meters (industry-first)
In-house, ISO certified
Complete BOQ & site supervision
Made-to-order, 1–12m lengths
ISO, CE, IAF certified
20+ years, 62+ sugar factories
India + exports to 7 countries
METAhybrid® Best R Value
Absolutely
Industry Standard
Limited range
2.5 meters
Often outsourced
Limited support
Standard sizes only
Variable
Varies
Limited
Standard options
Variable
Frequently Asked Questions
Everything you need to know about polycarbonate skylight roof sheets, multiwall panels, and the SunInside tubular daylighting system.
A polycarbonate skylight roof sheet is a translucent roofing panel that allows natural light into buildings while providing weather protection. Geometric Steels offers embossed 2mm translucent sheets, multiwall sheets in 6mm to 10mm thicknesses, and the Skylight SunInside tubular daylighting system.
Transparent polycarbonate profile sheets are available in a standard thickness of 2mm with embossing. They provide controlled light transmission and are an effective solution for allowing natural light into aluminium roofs.
Multiwall polycarbonate sheets are available in 6mm, 8mm, and 10mm thicknesses. They are engineered to block heat while permitting light wavelengths to penetrate — particularly ideal in 6mm and 8mm for wiregrass applications in north light sheds.
The Skylight SunInside is a tubular daylighting system developed through technical collaboration with 3M India Ltd. It uses a UV-resistant polycarbonate dome (minimum 80% transmission), a 99%-reflectivity mirror-coated aluminium guidance tube, a lens diffuser, and a variable-angle roof mounting system to channel natural sunlight into indoor spaces. It covers 750 to 1,200 sq ft per unit.
The mirror film on the guidance system provides 99% luminous reflectivity and over 90% bandwidth reflectivity for light wavelengths between 400 and 775 nm at angles of 0 to 80 degrees. The aluminium sheet used is 0.4mm thick.
Polycarbonate skylight integration with the SunInside system offers two key advantages: enhanced safety for workers on the roof, and prevention of water leakage during installation — both compared to conventional FRP or standard polycarbonate skylight sheets.
Related Products & Systems
METAhybrid® Insulated Roofing Sheets
Single & double skin thermal insulated panels — works directly with ridge vents for a complete thermal and ventilation envelope.
Structural Purlins
Z, C, Sigma, Hat & L section purlins — the secondary roof structure that supports the ventilation system above.
