The Most Advanced Multiwall Polycarbonate Panel System
Sunpal Multiwall Polycarbonate incorporates standing seam joints, a timeless style profile featuring classic long and elegant vertical lines that suit both modern and traditional architecture. Sunpal Multi is an advanced multiwall polycarbonate panel system that is characterized by distinct self-fastening, double-lock standing seam joints.
The Sunpal Multi polycarbonate panel system offers architects and builders a wide range of flexible roofing and structural design options.
Contact Us with your requirements to place an order for this product or visit your local ROC Store and we will take care of the rest.
Product Performance

STANDARD COLOURS
Colour | Light Transmission | Shading Coefficient | Solar Heat Gain |
---|---|---|---|
Clear | 65% | 0.72 | 0.63 |
Bronze | 25% | 0.46 | 0.40 |
Solar Grey | 30% | 0.52 | 0.45 |
White Opal | 26% | 0.43 | 0.37 |
SOLAR CONTROL COLOURS
Colour | Light Transmission | Shading Coefficient | Solar Heat Gain |
---|---|---|---|
Solar Control | 20% | 0.34
| 0.30 |
Solar Ice | 20% | 0.32 | 0.28 |

Shading Coefficient & Solar Heat Gain
Shading coefficient (SC) is a measure of thermal performance of a product. The lower the rating, the less solar heat is transmitted through the product, and the greater its shading ability.
Solar Heat Gain includes energy transmitted directly through the product and energy absorbed by the product and then re-radiated into the area below your roof space. The lower the figure, the cooler your area will be.
STANDARD COLOURS
Colour | Light Transmission | Shading Coefficient | Solar Heat Gain |
---|---|---|---|
Clear | 50% | 0.62 | 0.54 |
Solar Grey | 30% | 0.51 | 0.44 |
SOLAR CONTROL COLOURS
Colour | Light Transmission | Shading Coefficient | Solar Heat Gain |
---|---|---|---|
Solar Control | 25% | 0.41 | 0.36 |
DIFFUSER PLUS COLOURS
Colour | Light Transmission | Shading Coefficient | Solar Heat Gain |
---|---|---|---|
Solar Ice | 15% | 0.35 | 0.30 |
Clear | 49% | 0.61 | 0.54 |
White Opal | 20% | 0.38 | 0.33 |