IF we ever get spring-like weather, I think I may take the two roof covers off, which also covers two sides on the free-standing GH and one side of the lean-to GH. Those will come off easily from my two greenhouses. That would leave two end panels, including the doors. Those solar blanket panels are all screwed in and would be more time-consuming to remove. I then would have to put the "shade-cloth" back on the two greenhouses, and those two cover exactly what I would remove with the solar blanket material. During the summer months I leave the doors open and the vents all open. The heat escapes through those doors/vents, so the solar material left on the end panels shouldn't make any difference and will actually give me a little bit of diffusion of the sunlight. I run four fans in the "Orchid GH" and three in the "Everything Else GH", so that certainly gives some cooling effect as well.
You are right, my solar blanket material has had the ultimate test, at least for my part of the country. I think it greatly aided my GH's in trapping heat inside and keeping some of the cold outside. That is only my observation and I really don't know how I can ever prove it, one way or the other. I still want to figure out a way to cover all my exposed marine vinyl panels, those that cover the screening of my porch. If I can figure out a way to do that, and I want to be able to roll the two large solar blanket panels up during nice weather, I think it would really make a difference in keeping the temperature warmer on my porch during the cold months.
