Sliding Door Gap At Bottom

Check the weatherstripping or flashing.
Sliding door gap at bottom. Close the screen door. 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 door sweep attached to the expander bar should barely brush the doorsill with the. Give the screw a clockwise turn and test to see whether the door slides easier.
Turning this screw raises or lowers the roller. If the door becomes even harder to open turn the screw in the opposite direction. Adjust the expander bar down to close the gap between the screen door and the doorsill. The first area the patio doors fit perfectly.
If you ve noticed a large or small gap on the bottom. I had a contractor install sliding patio doors in 2 different areas in my house. 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. Most sliding doors have a mechanism called an adjusting screw located at the bottom of the door ends.
Replace damaged weatherstripping or flashing by removing the old and attaching new weatherstripping with screws or adhesive.