I have never owned a Greenhouse and have a limited amount of knowledge about their day to day, season to season operation. From what I have read it is not real hard to maintain a growing temperature during the winter months in the growing zone 8. It does appear that it is much harder to maintain a good growing temperature during the hottest summer months if the Greenhouse receives full sun all day long.
Years ago I had a friend / neighbor that had a 8 x 12 Greenhouse but during the summer months it was completely shaded from around noon until dark and if I recall correctly, he did not have an overheating problem. I do remember that he did grow several vegetables in pots through out the summer and quite a few flowers.
This leads me to my two questions: 1) is this an accurate assessment of the problem?, and 2) would an overhead removable “slide on a wire canopy” possible solve the problem?
Thank you for any help and information,
Thomas
