When you caulk over the hole.
Weep holes in shower door frame.
Locate the drain holes along the bottom inside edge of the frame and use a small screwdriver wire coat hanger or other similar device to clean the holes.
It is actually a very effective way of keeping the floors on the outside dry.
It is also important to make sure the weep holes built into the shower base are left open as an escape route for trapped moisture.
In a quick 1 minute video bill explains why shower pan weep holes exist and why you should never caulk over the holes above your shower pan so that water doesn t damage the wall.
Yes those are what we call weep holes they are necessary as you guessed to allow the water to drain out of the frame and into the shower.
The weep holes are generally found at the right and left front corners of the shower walls.
They are to let any water that splashes onto the door to run down the door and back into the tub.
Step 3 wipe the aluminum frame with a cloth to remove any dirt or residue.
People do not know what they are they just see a hole and caulk over them.
Everyone has likely seen the unsightly blackening of caulk around this connection.
Shower door leaks under the door in a framed shower door if the leak is originating near the bottom of the door it is likely caused by clogged drain holes.
Scrub small areas and the tracks with an old toothbrush.
I would suggest spraying a bleach solution into the holes from time to time to try to inhibit the mold growth in the framework.
As a rule the sill is caulked on the outside only or the inside is only partially caulked.
The l shape of the bottom sill allows the water to run off back into the shower.
The holes at the bottom of your shower door are known as weep holes.