Screen assembly for outwardly projecting window

A deformable screen for a window assembly including a sash movably coupled to a frame. The sash is moveable in a substantially horizontal direction relative to the frame. The deformable screen is coupled to the sash and includes at least one engagement portion slidably engaged against the frame. A spring member is coupled to the engagement portion and applies a restoring force to the engagement portion to seal it against the frame. In one option, the spring member includes a foam membrane. A method for making a screen assembly includes providing a frame and a sash disposed within the frame. A spring member is coupled around the sash and at least one engagement portion is coupled to the spring member. The engagement portion extends between the spring member and the window frame, in one option. In another option, the at least one engagement portion is slidably engaged against the frame.