Trimdek Polycarbonate Roofing Sheets (5-Rib polycarbonate)

Trimdek Polycarbonate Roofing Sheets

5-Rib Polycarbonate (Monoclad) – Durable, Lightweight & High-Performance

Looking for a strong, durable, and affordable roofing solution? Trimdek polycarbonate sheets are the professional's choice. With a 5-rib profile, they deliver exceptional rigidity, superior drainage, and better spanning capability than traditional corrugated polycarbonate roofing or Greca polycarbonate.

Whether you're building a carport, shed, veranda, pergola, or skylight, our Trimdek sheets ensure 30–90% light transmission with built-in UV protection and weather resistance — available in Clear, Grey, and Opal.

Why Choose Trimdek Polycarbonate Roofing?

✔ Low Minimum Pitch – Just 2° – Unlike corrugated sheets that require 5°, Trimdek suits near-flat roof designs.
✔ Excellent Load Spanning Capacity – Wide rib spacing lets Trimdek span up to 20% further than corrugated, reducing support requirements.
✔ Effective Water Drainage – Deep, wide channels direct rainwater efficiently, keeping your structure dry.
✔ Superior Light Transmission – Clear sheets allow up to 90% natural light with 86% solar transmittance, cutting artificial lighting costs.
✔ Impact & Weather Resistant – Virtually unbreakable polycarbonate, built to withstand UV, high winds, and heavy rain.
✔ Lightweight & Easy to Install – Far lighter than metal or glass roofing, cutting installation time and labour costs.

Applications

✅ Residential – Carports, verandas, awnings, patios, and skylights
✅ Commercial & Industrial – Warehouse skylights, factories, and storage areas
✅ Agricultural – Greenhouses, barns, and animal shelters
✅ Entertainment Areas – Pergolas, outdoor seating, and sunrooms
✅ DIY Projects – Shed roofs, walkways, and custom builds

Also consider our Greca polycarbonate roofing sheets for a traditional profile, or our corrugated polycarbonate sheets for classic wave-profile applications.

Trimdek vs. Corrugated Roofing – Which is Better?

Available Sizes & Colours

📏 Lengths: 1.8m, 2.4m, 3m, 3.6m, 4.2m, 4.8m, 5.4m, 6m, 8.1m
🎨 Colours: Clear, Opal, Grey
📐 Profile: 5-rib (Trimdek / Monoclad) — 760mm cover width

Need a different profile? Browse our full polycarbonate roofing range.

Installation Tips

🔹 Use Anti-Noise Purlin Tape – Prevents friction noise from thermal expansion between sheet and purlin.

🔹 Allow for Thermal Expansion – Use Excelite One-Shot Roof Screws or drill clearance holes (10mm for sheets under 4.2m, 12mm for sheets over 4.2m).

🔹 Use the Right Screws & Seals – One-shot roof screw 65mm × 14g with 26mm seal washer.
🔹 Seal Open Ends – Use polycarbonate sealing tape at ridge and eave ends to prevent dust and insect ingress.
🔹 Correct Overlap & Orientation – Overlap 1 rib and face away from prevailing wind.
🔹 Refer to Standards – For structural requirements, refer to Standards Australia guidelines for roofing installations.

Why Buy from ExcelitePlas?

✅ 99% UV-Protected – Impact-resistant and long-lasting Australian conditions
✅ Cut-to-Size Service – Custom lengths available on request
✅ Same-Day Melbourne Delivery – Orders placed before 12:00pm, or pick up from our Dandenong South Warehouse
✅ Factory-Direct Pricing – Competitive rates with no middleman
✅ Expert Advice – Contact our team for project-specific recommendations

Customers outside Victoria: We recommend our Embossed Corrugated Polycarbonate Sheet in Roll for interstate delivery.

Frequently Asked Questions

1. What is the minimum roof pitch for Trimdek polycarbonate sheets?
Just 2 degrees — ideal for low-pitch roofs where corrugated sheets (requiring 5°) won't work.

2. Are Trimdek polycarbonate sheets UV resistant?
Yes. All Excelite Trimdek sheets carry 99% UV protection, preventing yellowing and degradation from sun exposure.

3. Can Trimdek polycarbonate sheets be cut to size?
Yes. We offer a cut-to-size service for custom lengths — contact our sales team for details.

4. How much light do Trimdek polycarbonate sheets transmit?
Clear sheets allow up to 90% natural light with 86% solar transmittance. Opal and Grey reduce light and glare for comfort.

5. What screws should I use?
Excelite One-Shot Roof Screws (65mm × 14g) with a 26mm seal washer. Drill 10mm clearance holes for sheets under 4.2m, 12mm for longer sheets.

6. How do I prevent noise from Trimdek roofing?
Fit anti-noise purlin tape between the sheet and purlin to eliminate friction noise from thermal movement.

7. Do you offer same-day delivery?
Yes — same-day delivery within Melbourne Metro for orders placed before 12:00pm. Pickup available from Dandenong South Warehouse.

8. What is the difference between Trimdek and Greca polycarbonate?
Trimdek has a 5-rib flat-pan profile suited to low-pitch modern roofs. Greca polycarbonate has a traditional trapezoidal profile and is commonly used to match existing Greca steel roofing. Learn more about roofing profiles on Wikipedia.