We changed our floors last year and notice that there was dampness on the subfloor in the two corners of the sliding door. We called a handyman and he applied caulk on the corners and the tracks!.
After this and in the last one year i notice that whenever it rains, a lot of water gets collected on the sliding door track. Water comes on both the fixed and the sliding door sides, i see that it is the same track, so if water comes on one side of the pane will collect on the same track. I checked for the weep holes on the track and could not locate them. I do see the weep holes on the outside on both the corners and i cleaned them, also did not see any blockage on the outside of the weep hole. Need experts help with
1. finding the weep hole on the track
2. Has more water started coming into the tracks or less water goes out the weeping hole due to caulking on the track and corners.
Attaching pictures to the post. Picture number 0 has text added to explain the situation.














Thanks,
MK

 

Based on photo 6 I see 3 doors, a sliding glass door, sliding glass door, and sliding screen door on both ends of the opening going from the room to the deck. When it rains there are multiple possible positions the doors can be in so maybe you could expand on that. If the 3 channel threshold is not tiered , room to deck, high to low, collected water could go anywhere. The flat head screws in the bottom of the channels is one source of leakage to the wood threshold. Suggest covering the screw heads with a sealant. If the 3 channel threshold is tiered and solid (no tunnels when viewed from end) it should be possible to drill some weep holes in the upper channels so water can get to the lowest channel.

 

Hard to tell anything in 3d when all the photos are straight down, but often times the track channel that the sliding door rides on is a seperate removable piece (at least it is when it hasn't caulked it in), and the weep holes in the interior frame are below that. Cut the caulk on the ends and wiggle it out with a pliers or vise grips. It will be difficult to remove since the edges get caked in with dirt. Clean the entire bottom of the aluminum frame (which will probably be the first time anyone has done that in 40 years) to ensure it can drain.

Sometimes someone puts caulk where its not supposed to be, which blocks drainage. Other times it's just mud and bugs.

But you may find that the bottom track is not removable if you can't slip a thin knife down either side of it.

You could also pop off the threshold cap that blocks the fixed panel from sliding. Once it is off you can look for those interior weep holes and clean out under it for the first time ever.