Conformity
- European norm EN 13031-1 dated 01-11-2004
“Greenhouses: Design and construction”
One of the most important news of these rules is the greenhouse classification based on the following table:
Category | Useful project life | |||
15 years | 10 years | 5 years | ||
Class A |
Greenhouses covered by rigid materials which don’t bear big deformations under load |
A15 | A10 | – |
Class B |
Greenhouses covered by materials – as plastic films – which can bear big deformations under load |
B15 | B10 | B5 |
The useful project life is the period during which buildings, subject to the ordinary maintenance, must be used for the purpose they are destined to.