Shutters Protection Hurricane
http://jasperlrcy883.unblog.fr/2019/08/22/the-most-influential-people-in-the-cheapest-roller-shutters-in-my-area-industry-and-their-celebrity-dopplegangers/
Or the louvered slats of ranch shutters can be fairly cleverly adjusted to make sure that also throughout the day, when you call for light to be allow right into the room, an observer's line of sight is cut off,