Doing Greenhouse farming? Extend the life of greenhouse film by 25 % – TheAgrihub

Premature damage (Not related to UV Degradation) of Greenhouse film is a major issue among greenhouse farmers in India.   This premature damage happens due to degradation at the contact point with metal as follows:

  1. Metal used in greenhouse construction is Zinc coated.
  2. Zinc tends to migrate from the metal to the plastic at the contact point.
  3. Metal also gets heated due to adsorption of IR.
  4. Warm meatal transfers heat to the plastic in contact.
  5. The greenhouse film gets warm during the day and cool during night.
  6. Alternative heating and cooling tends to make plastic brittle and weaker at contact point…..

Source: Doing Greenhouse farming? Extend the life of greenhouse film by 25 % – TheAgrihub