Sunglaze 4mm Solar Control Grey Polycarbonate Roofing Sheet
Verandas and pergolas that cop the afternoon sun need a roof that takes the edge off the heat. The Sunglaze 4mm Solar Control Grey does that with a solid polycarbonate standing seam panel holding light transfer to 20%, using a grey tint to cut solar heat and glare. It is a practical pick for Australian verandas, pergolas and carports where full sun is the problem. Sheets are sold per metre and cut to length from 1.0m to 9.0m, with Australia-wide delivery or collection from our Truganina trade counter.
The standing seam system is what separates Sunglaze from a standard corrugated panel. Panels clamp into concealed aluminium joiners, so no screws pass through the sheet. The top surface stays clean, there are no exposed fastener heads to leak or corrode, and the roof reads as one smooth glazed plane. The twin surface UV2 coating blocks 99.99% of UV radiation on both sides of the panel.
For a covered outdoor room that is meant to stay comfortable in the middle of the day, the Solar Control Grey tint is a sensible trade. You still get a bright space, but the heat load and the harshness of direct light are both reduced, which means the area is usable for more of the year.
Key Features
- 4mm solid polycarbonate with a glass like surface on both faces
- 20% light transfer with a solar control grey tint
- Clean panel look: no fixing screws penetrate the sheeting
- Watertight clamp joining system with concealed joiners
- Twin surface UV2 protection blocks 99.99% of UV rays
- Reduced solar heat and glare for comfortable daytime use
- Cut to length from 1.0m to 9.0m
- Suitable for flat and curved roof profiles
Specifications
| Material | 4mm solid polycarbonate |
| Light transfer | 20% |
| Colour | Solar Control Grey |
| UV protection | Twin surface UV2, 99.99% UV blocking |
| Joining system | Concealed aluminium clamp (Sunglaze standing seam) |
| Length options | 1.0m to 9.0m |
| Sold by | Per metre, cut to length |
Applications
- Verandas and outdoor living areas
- Pergolas and gazebos
- Carports
- Pool and spa covers
- Patios facing afternoon sun
- Curved roofing on a supporting framework
What You Need To Complete The Job
Sunglaze is installed as a system. Alongside this sheet you need the Sunglaze 100mm aluminium rafter to carry the panels, the aluminium base, cap and cover joiners for the sheet-to-sheet joints, and Sunglaze infill foam to close off the eave line. The full set of matching parts is in the Sunglaze category, with the complete range under Polycarbonate Roofing.
Frequently Asked Questions
Why would I choose a solar control tint over clear?
Clear panels let in the most light but also the most heat and glare. The Solar Control Grey tint drops light transfer to 20%, which keeps the space bright while noticeably reducing the heat load and harshness under direct sun. It is the better option for west-facing verandas and patios that get afternoon sun.
What slope does a Sunglaze roof need?
The Sunglaze system is designed for both rafter and purlin construction, flat or curved, with a recommended minimum roof slope of 5 degrees. For lower slopes, the rafter design is recommended so water drains cleanly off wide panels.
Is the sheet fixed with screws through the top?
No. Panels clamp into the concealed aluminium joiners, so nothing penetrates the sheet surface. That keeps the roof watertight at the fixing line and gives the standing seam look you cannot get from a through-fixed sheet.
How long can the sheet be ordered?
Sheets are cut to length from 1.0m up to 9.0m and priced per metre. Pick the length from the variations on this page. For runs beyond 9.0m, talk to the store about supply.
Does the grey tint affect the UV protection?
No. The twin surface UV2 coating still blocks 99.99% of UV radiation regardless of the tint. The grey simply reduces visible light and solar heat; the protection against yellowing and weathering stays the same.






