Fenestration unit with sash supported for gliding movement and lateral movement within a frame

A method of manufacturing a fenestration unit comprising:

• providing a frame that defines a first axis, a second axis, and a third axis, the third axis extending through the frame, and the third axis being perpendicular to the first axis;
• supporting a sash for movement within the frame between a first position and a second position, the sash being displaced along the first axis during movement between the first position and the second position, the sash having an intermediate position in which the sash is disposed in the frame between the first position and the second position;
• the sash including a panel peripheral area, a glide support member that projects a first fixed distance from the panel peripheral area along the second axis, and a projection that projects a second fixed distance from the panel peripheral area along the second axis;
• the frame including a frame member that is elongate and extends along the first axis, the frame member at least partly defining a panel seat that opposes the panel peripheral area when the sash is in the first position, a support track configured to engage and support the glide support member for gliding movement of the sash between the intermediate position and the second position, and a guide channel that receives the projection to guide gliding movement of the sash between the intermediate position and the second position, the frame member including a diverter channel extending between the panel seat and the guide channel and configured to receive the projection to guide movement of the sash between the first position and the intermediate position, the frame member including a recess providing clearance between the frame member and the glide support member as the sash moves between the first position and the intermediate position.

A fenestration unit comprising:

• a rectangular frame that defines a first axis, a second axis, and a third axis, the third axis extending through the frame, the third axis being straight and perpendicular to the first axis, the third axis being perpendicular to the second axis;
• a sash supported for movement within the frame between a closed position and an open position, the sash being displaced along the first axis during movement between the closed position and the open position, the sash having an intermediate position in which the sash is disposed in the frame between the closed position and the open position;
• the sash including a rectangular panel with a panel peripheral area that includes a first corner and a second corner that are separated along the first axis, the sash including a first glide support member and a first projection disposed proximate the first corner, the sash including a second glide support member and a second projection disposed proximate the second corner, the first glide support member, the first projection, the second glide support member, and the second projection projecting a respective fixed distance from the panel peripheral area along the second axis;
• the frame including a sill member that is elongate and extends along the first axis, the sill member at least partly defining a panel seat that opposes the panel peripheral area when the sash is in the closed position, a support track configured to engage and support the first glide support member and the second glide support member for gliding movement of the sash between the intermediate position and the open position, and a guide channel that receives the first projection and the second projection to guide gliding movement of the sash between the intermediate position and the open position;
• the sill member including a first diverter member with a first diverter channel that is elongate to extend substantially parallel to the third axis between the panel seat and the guide channel and configured to receive the first projection to guide movement of the sash between the closed position and the intermediate position, the first diverter member including a recess providing clearance between the frame member and the first glide support member as the sash moves between the closed position and the intermediate position;
• and
• the sill member including a second diverter member with a second diverter channel that is elongate to extend at a positive angle relative to the first axis between the panel seat and the guide channel and configured to receive the second projection to guide movement of the sash between the closed position and the intermediate position.