Those in the know, please educate me on this thin, reflective "radiant barrier" insulation. I'm going to be looking at slowly insulating my shop this coming year. 28x30 metal building with 9' walls and 12' peak. Will this thin stuff really work? It rarely gets under 20*F during the winter here, but the summer is mainly what I am looking to insulate against.
I was lookin at somethin like this, but I don't know enough about WTF I'm lookin at. Any help or advice? Thanks.
Reflectix 48 in. x 100 ft. Double Reflective Insulation Roll-BP48100 - The Home Depot