See further detail related to it here. Keeping this in view, why is my sliding door leaking?
Poor framing. A sliding glass door is no better than the frame into which it is placed. If a frame is crooked, water can leak into the gaps between door and frame. The best solution: have a reputable sliding door contractor remove the door if it has not been damaged, build a new frame, and reinstall the door.
Furthermore, how do I stop water from sliding under my door? Even though well-maintained sliding glass doors usually don't have water intrusion problems, consider installing weatherstripping to prevent the leaks caused by driving rain. When installing weatherstripping, be sure to seal the entire door jamb with one continuous strip.
Considering this, do all sliding glass doors have weep holes?
RE: The windows and sliding glass door weep holes The weep holes can be seen on the outside. They are not actually holes but 1/2 inch long slits at the bottom of the track. One on each side of the track. The water would have to make a 90 degree turn to exit.
How do you seal a sliding glass door track?
Position the tip of the caulk tube against the top corner of the sliding glass door frame. Apply pressure to the caulking gun trigger to apply an even bead of caulk down the edge of the frame. Apply the caulk along the top of the frame and then down the remaining side.