Growing in covered spaces means that you’re going to be dealing with a lot of heat and a lot of moisture. Successful high tunnel growing will require addressing both of these factors to meet the needs of your crops. Below are a list of links and resources for learning more and getting ideas about ventilation in your high tunnel!

University of Minnesota High Tunnels page has a really great overview of temperature and moisture management in high tunnels, including max/min and optimum temperature ranges for different crops. http://hightunnels.cfans.umn.edu/structures/ventilation/

Presentation on Ventilation and Air Flow in High Tunnels from the 2009 Minnesota Statewide High Tunnel/Season Extension Conference. http://www.slideshare.net/UMNfruit/ventilation-and-airflow-in-high-tunnels

Presentation on High Tunnel Environment Management from a 2013 agricultural conference in Colorado. http://www.colostate.edu/Depts/CoopExt/adams/cabas/pdf/B&S%202013%20High%20Tunnel%20Environmental%20Management1.pdf

UVM Intervale Community Farm PDF document on environmental management in high tunnels. Includes information on ventilation and heat management, but also winter management and heating options. http://www.uvm.edu/sustainableagriculture/Documents/HighTunnels_EnvironmentalManagement.pdf

Growing for Market Article on hoophouse ventilation from the September 2014 issue. Note you need to be an online subscriber, or purchase a back issue, or ask to borrow a friend’s copy to read this article!

Maine Organic Farmers and Gardeners Association (MOFGA) presentation on High Tunnel Environmental Management (You Tube video, part 1 of 2). https://www.youtube.com/watch?v=CMf_Og8xWXE