The problem I have is that I don't have that problem. We here in the deep south (USA) have more humidity than we know what to do with.
All my hundreds of tropical plants are under oak and cedar trees for the spring and summer months. I simply know what the benefits of growing plants under large trees entails. Not only do they afford shade for my plants, but because of their transpiration, humidity and coolness is always present as well.
I am sure all these ideas can/will work. I simply don't have that need and thus have no experience in using those methods.
