All venting skylights are pre-equipped with insect screens, but for the roof windows, we offer optional insect screens that allow you to open the roof window and get fresh air inside without letting the bugs in. Have all your meals with your family, without any uninvited guests, even with the windows open with a VELUX insect screen. And whenever the screen is not needed, simply roll it up in the aluminum casing. It can be combined with all types of VELUX blinds.