Polycarbonate
In recent years the use of polycarbonate coverage is increased in modern greenhouses .it is suggested to use polycarbonate sheets in greenhouse walls. Using it in the roof needs more money to invest at the beginning but it has 15 years useful life time so in this order it is justifiable. One layer corrugated polycarbonate is used in hot climates and double layers with the thickness of 8 mm are used in cold climates.
The advantages of polycarbonate sheets:
- Polycarbonate sheet resistance against organic and mineral acids.
- Impact resistance.
- resistance against stretching and bending (flexibility).
- Heating insulation and saving energy.
- Non-flammable and self-extinguishing.
- Resistance against U.V.
- More than 15 years useful lifetime.
