Sound Insulation Polycarbonate Roofing Sheets High Light Transmittance
Polycarbonate Roofing SheetsFeature
(1). Excellent impact resistance: 250~300 times that of same thickness glass, 30 times that of acrylic sheeting.
(2). Weather and UV resistant properties retained for years.: Temperature resistance range is -40째C ~ 120째C, with an ultraviolet coextruded film on the sheet surface. It can prevent the resin fatigue or yellowing caused by the ultraviolet.
(3). Light weight: only 1/12 of the weight of glass of the same thickness. It can be easily cold bent as well as thermal shaping.
(4). Flame resistance: High fire performance rating is class B1.
(5). Sound and heat insulation: Superb sound insulation for freeway barrier and super thermal insulation save energy.
Polycarbonate Roofing Sheets Specification
(1) Size : 6mm * 2.1m * 11.8m (thickness can also be 4mm, 5mm, 8mm and 10mm)
(2) Weight: 0.85kg/sqm - 1.7kg/sqm
(3) Length: 5.8m, 5.95m, 11.8m
Polycarbonate Roofing Sheets Properties
1. Mechanical Properties
* Impact strength: Polycarbonate twin-wall sheet has outstanding impact performance over a wide temperature, -40℃ — +120℃, and also after prolonged ourdoor exposure.
* Hail resistance: As a roofing glazing material, polycarbonate sheet is subject to extremes of weather, storms, hail-stones, wind, snowfalls and ice formation. Under these conditions, the product is virtually unbreakable and is able to withstand the subsequent temperature change to sunny conditions without breaking or bucking.
2. Physical Properties
* Light tramission:
| Thickness(mm) Color | 4 | 5 | 6 | 8 | 10 |
| Light transimission |
| Clear | 80% | 78% | 76% | 74% | 72% |
| Lake Blue | 56% | 54% | 51% | 49% | 48% |
| Green | 55% | 52% | 51% | 48% | 46% |
| Grass green | 54% | 52% | 50% | 46% | 44% |
| Brown | 34% | 32% | 30% | 26% | 23% |
| Blue | 33% | 31% | 28% | 25% | 20% |
| Opal | 27% | 25% | 22% | 18% | 15% |
| Advertising white | 16% | 14% | 12% | 9% | 8% |
Polycarbonate Roofing Sheets Storage
1. Polycarbonate sheet shoube be stored and protected against atmospheric influence like sun, rain, etc.
2. Same length of polycarbonate sheet should be stacked together horizontally or, if different lengths, graded with the longest sheet at the bottom of the stack in order to avoid unsupported overhangs.
3. The stacks should be supported om timber bearers and should not be placed where they can be walked on or driven into.
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