Double Glaze Roofing System
Coxwell’s cutting-edge polycarbonate facade systems offer lightweight strength, energy efficiency, and striking aesthetics—for spaces that inspire.
Designed for Superior
Thermal Insulation
The Double Glaze Roofing System features a dual-layer polycarbonate setup with an air gap at its core — a sandwich construction engineered for superior thermal performance, reduced energy costs, and noise reduction. Ideal for projects where insulation is non-negotiable.
Delivers
lower U-values
for energy savings
Acts as an
acoustic buffer
in sound-sensitive environments
Features
twin-side aluminium connectors
for long-term structural integrity
Where It Fits Best
Commercial complexes in hot climates
Greenhouses, museums & heritage buildings
Residential rooftops using solar energy systems
Any site prioritizing thermal comfort and noise control
Why ?
- To reduce HVAC loads in heat-intensive regions
- To replace single-sheet roofing with a high-insulation alternative
When ?
- When energy efficiency is a project requirement
- For projects demanding high-performance insulation
Key Features & Benefits
Technical Specifications
Panel Thickness
10–30 mm (each sheet) + 50 mm air gap
Max Purlin Gap / Span
800 mm – 1000 mm
U-Value
Lower values based on air gap & color
Fire Rating
Fire-retardant
Light Transmission
Varies by color
Material
Polycarbonate + Aluminium
Weight
6 – 21 kg/m²
UV Protection
45–50 microns (top) / 25–30 microns (bottom)
Max Length / Width
Customizable Length / 900 mm Width
Structure Compatibility
Single-side slope, hut, dome, ramp structures
Installation Guidelines
Purlin spacing: 800–1000 mm
Minimum slope ratio: 5°–7°
Purlins must be tied at both ends
All edges must be sealed using the supplied U-profile system
Frequently Asked Questions
Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts. Separated they live in Bookmarksgrove right at the coast
Yes, it can fully replace single-sheet roofing where insulation is important.
Yes, it can fully replace single-sheet roofing where insulation is important.