ExcelitePlas
Clear Flat Polycarbonate Roofing Sheet & Roll
Clear Flat Polycarbonate Roofing Sheet & Roll
2mm / 590mm / 1m
Dandenong South Warehouse
6 Stephen Road
Dandenong South VIC 3175
Australia
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Clear, glass-like solid polycarbonate roofing supplied in convenient roll form for easier handling and transport. Choose from multiple thicknesses, widths and continuous lengths up to 30m, with Australia-wide shipping available.
- Continuous lengths up to 30m
- Multiple widths and thicknesses
- Easy to transport and handle
- Australia-wide shipping
- Cut to suit your frame
Unlike traditional corrugated sheets, Excelite Clear flat roofing features more benefits:
- Thicker - While standard corrugated sheets just 0.8mm, Excelite Flat Roofing Sheets offer superior 2mm to 4mm thickness for enhanced durability."
- Glass like - A more attractive, modern appearance
- Custom Width – Adjust to match your rafter spacing
- Continuous Length – No joints along the length, reducing water leakage risk
- Versatile Use – Ideal for re-roofing (replacing old broken or aged corrugated sheets) or irregular rafter spacing
- Weather Protection – UV protected, Great for pergolas (blocks rain), greenhouses, and sunrooms, Pitched roof triangle cover.
- High impact resistant, Hailproof, 250 times stronger than glass
Available Sizes:
| Thickness | Typical applications | Handling |
|---|---|---|
| 2mm | Curved roofing, awnings and lightweight covers | Most flexible |
| 3mm | Pergola roofs, verandas and roof replacement | Balanced flexibility and strength |
| 4mm | More rigid pergola and patio roofing | Heavier and more rigid |
| 6mm | Flat panels and specialised applications | Flat Sheet, Can't be rolled up |
How to Measure Your Pergola Roof
Measure the distance between each rafter from centre to centre. Because the aluminium H-joiners are installed directly above the rafters, we generally deduct approximately 15mm from each measurement to allow space for the joiners and thermal expansion.
Measure every rafter bay individually, as the spacing may vary slightly.
For the sheet length, measure along the roof slope from the upper fixing point to the gutter. Allow approximately 50mm of additional length to overhang into the gutter.
Please send us your measurements and photos of the existing frame before ordering so we can help confirm the appropriate sheet sizes.
How Do I Join Two Polycarbonate Sheets Together?
Use a two-part aluminium H-joiner with rubber seals. Install the base profile directly above the rafter, with the rubber lips facing towards the sheets.
Position one polycarbonate sheet on each side, leaving approximately 3mm of expansion clearance per side. Clip the top cap over the base, then secure it according to the installation instructions.
When installed correctly, the H-joiner creates a strong, clean and weather-resistant connection without requiring screws through the sheets.
Applications:
- Old pergola renovation
- Pergola roofing replacement
- Gable roof pergola triangle enclosure
- Pergola side enclosures
- Sunroom
- Greenhouse
- Cover your pergola
- Veranda Cover
- Patio Cover
Frequently Questions:
- Is a slope necessary for my pergola?
Slope is generally needed for any roofing system. A minimum slope of 5 degrees is recommended for effective water drainage. The slope helps with water drainage, this prevents water from accumulating on pergola roofing surface, ensuring longevity and preventing issues such as leaks.
If your pergola is flat, it's advisable to add shims to create slope.
2, What is the maximum span for my rafters without Sagging?
The maximum span for polycarbonate roofing on your rafters depends on the specific type of polycarbonate sheet and its thickness. The best rafter distance for flat polycarbonate roofing sheet is 600mm-800mm.
It's essential to refer to the manufacturer's guidelines or consult with a structural engineer to determine the appropriate maximum span for your project.
Recommend to consultant with pergola roofing sheets supplier first before you put the rafters on.
3,Is it necessary to install gutters and flashing for my pergola?
Yes, it is advisable to include gutters and flashing in your pergola design to manage water drainage effectively.
4, Why Aluminium H Joiner is important ?
Aluminium H-Joiners are essential for pergola roofing because they create waterproof seams between polycarbonate sheets while allowing for thermal expansion. Their rigid yet flexible design prevents leaks, supports the roof structure, and gives a clean finished look—unlike exposed screws or overlapping panels. Paired with Excelite's 2mm-4mm thick sheets, they form a durable, weatherproof system that outperforms traditional corrugated roofing.
5, Why you should avoid drilling Holes in Polycarbonate Roofing Sheets
While drilling is possible, minimizing holes in polycarbonate roofing sheets is ideal for these reasons:
✔Risk of Cracks & Weak Spots
- Polycarbonate expands/contracts with temperature changes.
- Drilled holes create stress points that can lead to cracking over time
✔Water Leakage
- Even with sealant, screw holes degrade over time due to UV exposure and thermal movement.
- Water can seep through, causing rot or mold in underlying structures.
✔Better Alternatives Exist
- Aluminum H-Joiners: Provide a waterproof, strong connections.
When Drilling is Necessary:
If you must drill:
✔ Oversize the holes to allow expansion room, Use UV-resistant EPDM washers
✔ Keep holes at least 2x diameter from sheet edges (e.g., 6mm hole = 12mm from edge).
Related Articles you may interested in:
Can polycarbonate sheet be bent?
How to Clean polycarbonate sheet?
Difference between Acrylic sheet and Polycarbonate sheet
What Roofing System Is Best Suited for My Pergola?
How to join polycarbonate sheet? Installation Guide for Pergola Roofing sheets.
How to Cut polycarbonate sheet?
Complete Your Roofing System
These products are commonly used together with this roofing sheet:
- Aluminium H Joiner 58mm 2-Parts – Polycarbonate Glazing Bar – Join sheets cleanly and waterproof without drilling
- Polycarbonate H Joiners 10mm – 3m / 6m Clear – Lightweight clear joiner option for a seamless look
- Polycarbonate One-Shot Roofing Screws – 50mm & 65mm – Purpose-built screws with integrated sealing washer
- Solid Polycarbonate Roofing System – 4mm Locking Panels – Rigid panel alternative for larger spans
Explore More Roofing Options
- Corrugated Polycarbonate Roofing Sheet – Traditional profile for standard rafter spacing
- Browse All Pergola & Patio Roofing →