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At 45º-55º latitude, during the 5 critical months between November and March, the sun shines most of the day at a 15º-25º angle with the horizon.SUNTUF Plus refracts light at low angles of incidence, reduces reflection, and facilitates more light penetration into the greenhouse than any other material.
40° 30° 20° 10°
90.0%
67.5%
45.0%
22.5%
0.0%
87.7%85.9%83.9%
82.5%81.0%78.9%
72.1%70.1%67.3%
43.0%
64.3%
57.8%
Angular light transmittance
Angle of incidence
SUNTUF Omega 0.8mm Clear
4mm Clear glass
SUNTUF Omega 0.8mm Clear Embosed
45°-55°
SUNTUF® Plus brings more lightinto greenhouses than any other material.
The chart data is based on test reports from Wageningen UR horticulture optical lab.
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Optimized corrugation allows longer daylight time and stronger light penetration.
Light transmission in Corrugated Sheets vs. Flat Sheets:
SUNTUF Plus UV resistanceSUNTUF Plus maintains its high optical properties over time. A protective layer prevents UV related degradation of the material and makes SUNTUF Plus an ideal greenhouse cover.
90.5%
100 hours of QUV machine are equivalent to 1 year exposure to UV radiation in areas of 160-180 kl.ls, such as the Mediterranean coast, Mexico & Central America, Central & south Africa, Australia & southeast Asia.
100.0%
75.0%
50.0%
25.0%
0.0%0 500 1000 1500 2000
89.6% 89.2% 88.9% 88.9%
QUV Machine hours
The test is being according to ASTM G-154, 313 nm lamps, 0.75 W/m2/nm-47 OC, 20 hours radiation + 4 hours condensation (dark).
LT%
Weathering resistance of clear SUNTUF Plus 0.8 sheet
Corrugated SheetNoon Low Sun Angle
High Light Transmission
Flat SheetNoon Low Sun Angle
Low Light Transmission