Something is missing from this thread. I have three sliding glass doors that were installed by the builder. There are no weep holes, but water that collects in the outside part of the track can drain out on the sides of the track. When the doors are closed they are sealed on the top, sides, and bottom with weatherstripping. I have never had water enter the inside part of the track during a rain storm. So, I never have any water on the interior side of my house. I don't know what type of sliders the OP has, but, it seems to me that, if they are designed to collect water in the inside part of the track, that would be a problem. The water would be a souce for humidity and a water source for insects or other animals that enter the house. Perhaps someone could provide a more technical description (model number) of a door with weep holes that allows water to enter the house as a design feature.
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