binfordw said:I need to add that info, I keep forgetting
I'm in Indiana, zone 6A.
I do have a well sized ventilation fan/vents setup that's thermostatically controlled I'll be installing in the HH to keep the temps in check during the summer.
I know people in my area that grow in green houses and high tunnels. The summer heat here is too much for growing anything without some way of cooling. One grower had raspberries they grew in a high tunnel, but I'm not sure how they cooled it, because I just met them and didn't have time to ask a lot of questions.
The tomatoes in my friends' unheated/uncooled high tunnel matured only 2 weeks earlier than the ones that were started in the greenhouse and then grown outside. The high tunnel tomatoes fried in the heat early, while the outside tomatoes continued to bear for another month or so. The unheated high tunnel proved useful for growing winter crops. Spinach and Kale overwinter in zone 6a, but yield more in the high tunnel. My friends grow in ground with organic chicken manure compost in their high tunnels. Outside they use slightly raised beds with the same chicken manure added.
The plants in the high tunnels and greenhouse have escaped deer and rabbit predation, but mice got in the green house and wiped out the pepper seedlings.
Another useful feature is that of blocking excessive rainfall that can cause mold.
