I'm building a woodworking enclosure inside the middle of a 3 car enclosed garage. The walls will be 2x4 16" centers. I want window openings to permit visibility and light. Single hung vinyl window and screen runs about $125 at Lowes for 4'x4'. Is anyone aware of a "window" with a screen and a clear vinyl panel that would both retract into cassettes built into the frame?
If you go to a glass shop with a drawing of what you are trying to do they can probably supply you with the right materials to build it. I've never seen anything like that, so it would probably have to be custom built.