Double Layer Polycarbonate Roofing Sheets For Greenhouse Roofing
What is the Polycarbonate Roofing Sheets ?
Polycarbonate Roofing Sheets is a new kind of engineering plastic
with excellent physical and chemical characteristics. Light weight
but with high impact resistance, good heat insulation, nice light
transmission etc. so it is widely used for construction and
decoration.
Polycarbonate Roofing Sheets Specification
(1) Width: 2.1m
(2) Thickness: 4-10mm
(3) Weight: 0.85-1.7kg/sqm
(4) Length: 5.8m, 5.95m, 11.8m
Polycarbonate Roofing Sheets Physical Data
soften temperature
| 148℃ |
suitable temperature
| -40 ~120℃ |
Anti-fire rating
| GB8624-1997, B1 level material |
elastle stress
| 2400MPa(1mm/rain.ISO 527) |
tensile stress
| 63MPa(at yeild 50mm/min.ISO 527) |
tensile strain
| 6%(at yeild 50mm/min.ISO 527) |
nominal tensile strain
| >50%(at break 50mm/min.ISO 527) |
Polycarbonate Roofing Sheets Light Transmission For Different
Colors
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 Sheet Installation Instruction
1. Expose only the face that has the UV protection if the sheets
include 1-side UV co-extrusion layer. Double-side UV can expose
either side face to sunlight.
2. Store sheets on flat surfaces. Use an opaque cover, tightly
secured, to protect from wind, rain and sun. Storage is always
preferable indoors.
3. Sheets should be install with the rib channels are sloping
downwards. That orientation will reduce accumulation of dirt inside
the sheet and ease gravity drainage of condensation moisture.
4. Allow enough or lengthwise and widthwise for expansion of
sheets.
5. Improved performance can be obtained by replacing the washers
with special plastic screw buttons, fitted with a suitable rubber
gasket, with or without a closing cap. They fit the thickness of
each type of sheet (6, 8, 10, 16mm, and possibly 25 mm), differing
by sleeve length.
6. Never walk on the sheets directly. Always use wooden boards
mounted in the same direction of the structural supports.
7. Self-cleaning by rain is usually sufficient. Using diluted mild
household detergents. Make sure the detergent contains no abrasives
or solvents. Pre-wash with warm water, then wash the stained area
with a soft sponge or brush, preferably with hot water, until the
stain disappears. Rinse with water and dry with a soft cloth.
8. Saw blades designed especially for plastic yield best results. A
circular saw (fixed or portable, with small teeth suited for
hardwood), rotating at high speed, band saw or a jigsaw (best for
short, complex cuts) can all be used, taking care to advance the
blade slowly. A hand and hacksaw may also be used for local
cutting.
What Can Polycarbonate Sheet Be Used For?
Polycarbonate sheets can be used in a wide range of applications
including airports, stadiums, and public spaces. Polycarbonate
sheets are also extremely suitable for private use, including in
greenhouse roofing or glazing.
