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Robinson Polytunnels Limited Pasture Barn East, Pasture Lane, Barrowford, Lancashire,
SunMaster Diffused films also have an additive which reflects part of the infra red thermal spectrum. This reflection will not only make the greenhouse up to 10% cooler than a clear film in high sunlight conditions, but also gives a much more pleasant working environment. More importantly when there is a lot of IR A/B (700-3000 nms.) it lowers leaf temperatures, reducing tip burning and reducing moisture stress on the leaf and plant.
SunMaster Diffusion overall light levels are ~89% but in fact winter light levels under SunMaster diffused are considerably higher than under glass or clear polythene films. This is because the light is deflected into the structure by the diffuser, rather than being reflected off again.
SunMaster diffused can give up to 2 deg C frost protection.