Here is a fairly good article on the subjecct.
"Radiant barrier spray-on paint is essentially liquid foil. While not all radiant barrier paints are the same, basically they are made by grinding pure ... read more
I would work backwards and figure out what you can do abou the moistue. Do downspouts dump water right on the foundation or do they do what they are suppose to do which is move water downhill and at ... read more