Double-hung windows are designed to allow both sashes to raise, lower and tilt in for cleaning the outside surfaces of both the upper and lower sash.
To Tilt The Lower Sash, Follow These Steps:
Unlock the window.
Raise the lower sash a minimum of 3″
Pull both tilt latch buttons (located on the top rail of the sash) towards the center of the sash to disengage them from the mainframe jambs.
With both hands, carefully pull the top of the lower sash in toward you slightly beyond a 90 position. Support the sash while cleaning the exterior.
To Tilt The Upper Sash, Follow These Steps:
Lower the upper sash to at least 2″ above the sash stops (located in the lower outside track).
Pull both tilt latch buttons toward the center of the sash to disengage them from the mainframe jambs.
With both hands, carefully pull the top of the upper sash in toward you slightly beyond a 90 position and rest it on top of the supported lower sash. (The upper sash cannot be tilted in without the lower sash being tilted in).
To replace the sashes to the operating positions, hold the top rail of the sash with both hands and push it all the way into the main frame tracks. Make certain that the tilt latch buttons click in to lock the sash in the mainframe. If the tilt latches are not reengaged in the mainframe, the sash may fall inward unexpectedly.
To tilt both sashes in, tilt the lower sash in first, then tilt in the upper sash. To reengage the sashes, reposition the upper sash first, then the lower sash.