The lid is directly affected is the style most rectangle. Some framed Some do not have a frame. Some has opened. Some don't have Windows handy to provide airflow.
This is a drill to cap greenhouse are mostly rectangular. Some of the frame Some of frameless Some houses have no windows open somewhere handy to have air circulation.
Is the drill before the rectangle frame is mainly. Some are some no frame, some of the doors are closed, open, somewhere. The window is useful to the circulation of air.