Therma-Tru offers a glass that includes a screen component. The glass can move up and down to allow a fresh breeze in on a nice spring day. In order to clean the glass though, the screen must be removed.
The removal of the screen on Therma-Tru vented door is as follows:
Pull the window up to its highest position.
Stand on the outside of the door unit.
At the two corner edges of the screen, pinch the screen.
Shift the screen to the left or the right.
At the opposite corner that you shifted, pull the screen towards you.
You may need to use your fingernail, a flat head screw driver, or a plastic putty knife.
The screen should pull out towards you.