Before you make another move I would fully review this thread as heat and cold is always the issue in colder zones
https://growingfruit.org/t/greenhouse-putting-it-all-together/81737/20
Before you make another move I would fully review this thread as heat and cold is always the issue in colder zones
https://growingfruit.org/t/greenhouse-putting-it-all-together/81737/20