They do work but radiant heat is a problem in the sun. They get very hot inside during the summer heat. You can build a roof over them to provide shade and use AC to keep things cool. I hope you installed a regular door so you don't need to open and close the big door at the end that would suck if you are trying to hide the inside. You could divide up the inside into 2 or 3 rooms so you have veg/clone/mothers area and flower rooms so you can cycle grow to suit your needs.