A reasonable drainage slope can not only prevent water accumulation, but also ensure the rapid discharge of rainwater and avoid damage to the structure. So how to find a good slope of polyethylene film greenhouse gutter drainage?

Multi span film greenhouse is a kind of large greenhouse, its individual area can reach several hectares, so many people will pay attention to the temperature problem in the greenhouse, and how to design the greenhouse ventilation. So today I want to share with you the design reference factors for large multi-span film greenhouse ventilation systems.