Window with automatic screen

A window ad self-screening system comprising an outer supporting frame, at least one window slidably retained within said frame and movable from one end of said frame toward the opposite end thereof between a first closed position and a second open position, a window screen mounted on means for retaining said screen in a wound condition and for allowing said screen to be unwound therefrom and taken up thereby, said screen being positioned on said system adjacent the end corresponding to the first closed position of said window said screen having a first end attached to said window so that said first end will move together with said window and a second end attached to said retaining means, said screen further including top and bottom side edges, said retaining means including first sealing means for sealing about said screen as said screen moves with said window, and second sealing means secured along said side edges, said frame further including means defining elongated channels for supporting said at least one window and for slidably receiving said second sealing means so that as said window moves between said first and second positions the screen will follow that movement and simultaneously establish a seal about the marginal edges of said screen.