[villagetinker]

If you have screens, they should be removeable as noted above, look for small metal "pulls" along the base of the screens, these typically pull UP against a spring at the top of the opening and allowing the screen to be removed. As for the sliders, I would use a suitable glass cleaner, and then a mild hose spray to rinse, I would NOT use a pressure washer or any other high pressure source as this will force water past the normal channels in the floor area into the interior room, been there done that...