The sliding doors have small wheels on them that fit on a track in the unit.
Insulate sliding glass door track.
It should extend beyond the side of the window and either be wide enough to cover the entire door or stop where the door starts and just cover the non opening part of it.
The simplest and easiest way to keep your sliding glass door from leaking is by keeping the track and rollers clean.
Keep the door track clean and free of debris.
Step 2 caulk the sliding doors.
If your sliding glass doors run on a track keep the track clean.
Use a rag dipped in warm water to remove any dirt from the bottom of the wheels the window or the track.
Caulk around the edges of the sliding glass doors.
Remove the sliding doors from the tracks.
If rocks gravel and clumps of dirt have fallen into the threshold the door may not be set correctly on the track.
How to insulate sliding glass doors.
Weather stripping for doors 2 rolls 1 2 w x 1 4 t black foam seal tape for sliding door jamb front door frame windows insulation 26 ft length 2 x 13 ft each 4 6 out of 5 stars 686 11 98 11.
The panel should sit on the floor and extend above the top of the door frame.
Replace existing curtains with insulating thermal curtains.
Vacuum away any pebbles or larger debris.
Patio door insulation kit contains 2 sheets of 84in x 112in shrink plastic film and 2 rolls of 0 5in x 39ft double sided tape heavy duty and crystal clear for indoor patio doors and large windows 3 9 out of 5 stars 30.
This allows cold air in or air conditioned air out.