Abstract: A dual layer insect screen assembly for fenestration units has a first screening layer for blocking passage of insects through the fenestration unit. A second screening layer is moveable over the first screening layer to provide additional shading, light reflection, and other variable optical effects, while still allowing ventilation through the fenestration unit.

Abstract: A vented glass door includes a rectangular frame having a glass window fitted in the center thereof. At least one air passageway is provided commencing at the rear surface of the frame members, and passing through the frame members themselves and outwardly through an outlet opening at the edges of the frame members.

Abstract: A glazing seal is used in combination with a rectangular door frame and a rectangular window frame. The door frame includes a window opening and the window frame is fitted within the window opening. The window frame surrounds a sheet of glass having a perimetric edge. The sealing member has a first portion extending around the perimetric edge of the glass and sealingly engaging the edge of the glass and the window frame. The sealing member also has a second portion thereof fitted between the window frame and the door frame to provide a substantially airtight seal there between.