However in the second area there is a gap that leaks air.
Sliding door gap at bottom.
The door sweep attached to the expander bar should barely brush the doorsill with the.
Weatherstripping and flashing are rubber insulators located on the bottom of the sliding door that secure the gap between the threshold and bottom of the door.
The first area the patio doors fit perfectly.
Most sliding doors have a mechanism called an adjusting screw located at the bottom of the door ends.
If the door becomes even harder to open turn the screw in the opposite direction.
If you ve noticed a large or small gap on the bottom.
Sliding doors slide best when a uniform gap is maintained along the edges and bottom of the door.
Turning this screw raises or lowers the roller.
Adjust the expander bar down to close the gap between the screen door and the doorsill.
Open your door approximately six inches and watch the gap between the door and frame turn the adjustment screws with your screwdriver until a uniform gap is achieved.
Give the screw a clockwise turn and test to see whether the door slides easier.
Close the screen door.
I had a contractor install sliding patio doors in 2 different areas in my house.