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Greenhouse Management Departments - Tech Solutions Photos courtesy of John W. Bartok Jr. Today, more than two-thirds of new greenhouse construction is covered with film plastic. Besides the obvious advantages of low-cost, low taxes, ease of covering, four year life and additives such as anti-drip and light diffusion, there are other properties that should be considered when purchasing the material. Manufactures have worked hard to provide a material that will give good service, high light transmission and properties that improve plant production. Most greenhouse polyethylene film is manufactured as a coextrusion of three or more layers with different polymers and additives. Each of these layers contributes to the quality of the film by adding tear and puncture resistance, high light transmission, IR retention, UV blocking, dust control and color pigments.

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