Ventalation is perhaps the single most important component to a greenhouse and it serves two main purposes.
It provides fresh air, mainly in the form of carbon dioxide to plants, and it provides cooling for the greenhouse.
Because of this, great care must be given to ensure that proper supplies are purchased to achieve optimal ventilation.
Installing an evaporative system like a misting system, fogger, or evaporative cooler can provide additional essential cooling which is especially important on a hot summer day.
An exhaust fan ventalation system often consists of a fan designed to blow hot, stale air out of the greenhouse and pull cool fresh air in.
This can be accomplished by supplying your greenhouse with intake shutters mounted on the opposite end of the building. Many systems are able to make a complete change of air in one to three minutes.
You can use roof and side vents to supply cool air to your greenhouse. These are especially effective during cold winter months.
This is because fresh air is supplied more gradually than with an exhaust fan system, which helps reduce temperature shock to the plants growing inside.
Circulation fans are also highly recommended while using roof or side vents because they move air throughout the structure eliminating both hot and cold spots which is useful when heating or venting.
Thermostatic controls and solar powered autovents can be used to automate your ventalataion system. This is crucial because forgetting to ventalate even once can overheat everything inside.
There are many options to consider when deciding which ventalation supplies are necessary to have in your greenhouse.
Know the climate of your area and understand the changes that can take place and how to eliminate possible problems.
Good ventilation will always provide you a better environment for your plant growth.