Corrugated polycarbonate roofing sheets offer the strength and weather resistance of traditional corrugated metal, combined with the light transmission and impact resistance of polycarbonate. Lightweight, virtually unbreakable, and UV-protected, they’re one of the most popular roofing materials for Australian homes and commercial projects.
What Are Corrugated Polycarbonate Sheets?
Corrugated polycarbonate sheets are single-layer polycarbonate panels formed into a wave or corrugated profile — designed to match the profiles of standard corrugated metal sheets used in the Australian building industry. This makes them easy to integrate into existing structures or use as a direct replacement for metal roofing where natural light is desired.
Key Features
- Lightweight & rigid — easy to handle and install with standard carpentry tools
- Virtually unbreakable — high impact resistance; won’t shatter like fibreglass or glass
- UV protection — UV-inhibitor coating on one side prevents yellowing and degradation; 99.9% UV protection
- High light transmission — up to 90% for clear sheets; opal sheets provide ~42% for diffused light applications
- Fire retardant — rated B1 for fire safety
- Weather resistant — service temperature range from -50°C to +120°C
- Condensation control — built-in feature eliminates condensation drop formation
- 10-year warranty — long-term performance guarantee
Common Applications
- Greenhouses and growing structures
- Pergolas and covered patios
- Carports and awnings
- Skylights and roof glazing
- Covered walkways and shopping centre canopies
- Storage buildings and garages
- Sunrooms and alfresco areas
Corrugated Polycarbonate vs Corrugated Metal
| Corrugated Polycarbonate | Corrugated Metal (Colorbond) | |
|---|---|---|
| Light transmission | Up to 90% (clear) | None |
| Weight | Lightweight | Heavier |
| Impact resistance | High — won’t shatter | Can dent |
| UV protection | Built-in coating | N/A |
| Rain noise | Quieter | Louder |
| Profile compatibility | Matches standard metal profiles | Standard |
| Installation | Standard carpentry tools | Standard tools |
Technical Specifications
| Property | Value |
|---|---|
| Thickness | 0.8mm – 2mm |
| Specific gravity | 1.2 g/cm³ |
| Light transmittance (clear, 1mm) | 90.2% |
| Tensile strength | 60.3 MPa |
| Service temp (long term) | -50°C to +100°C |
| Service temp (short term) | -50°C to +120°C |
| UV protection layer | 50μm |
| Fire rating | B1 |
| Warranty | 10 years |
Flexible Greenhouse Panels
Need a bendable option for curved greenhouse structures? ExcelitePlas also stocks 1.2mm bendable corrugated polycarbonate panels — specifically designed for curved greenhouse applications where flexibility is required.
Installation Tips
- Always install with the UV-protected side facing up (marked on the sheet)
- Use purpose-made polycarbonate roofing screws with neoprene washers to prevent leaks
- Allow for thermal expansion — do not over-tighten fixings
- Overlap sheets by at least one corrugation at side joints
- Maintain a minimum roof pitch of 5° for adequate water runoff
Shop Corrugated Polycarbonate Sheets at ExcelitePlas
ExcelitePlas stocks corrugated polycarbonate roofing sheets in clear and opal finishes, available in standard lengths or cut to size. Fast delivery across Australia from our Dandenong South Warehouse, with same-day Melbourne pickup available.
Shop corrugated polycarbonate sheets or contact our team for expert advice and a quote.
