Hi drdawg
Thanks for the information, do you think that a correctly built and installed awning / canopy of a proper size would be sufficient to cool down a Greenhouse for summer use? The biggest advantage to me, would be that the canopy would be placed a couple of feet higher than the top of the Greenhouse thus allowing for cooling airflow between the two. Then during the fall and winter the cover could be either moved back out of the way or completely removed. The search that I have done so far shows that most of these covers are designed to be removed easily for cleaning and storage.
By the way, you sure have a lot of nice looking plants
Thank you again,