Wood, polyclad, and poly plantation shutters can all be lovely and practical additions to a home. If you're interested in buying plantation shutters near San Jose and would like to understand more about their benefits, then watch this video to learn how these window coverings can add energy efficiency to your home.Most interior shutters that are available offer energy efficiency, and they can provide more of it when the shutter panels are shut, and the louvers are in the closed position. Different shutter types can have R-values ranging from 2.18 to 6.1, with higher R-values correlating with better insulating ability.