21. Your first priority is to drill some holes in the wall for drainage; weep holes they are. 22. They are good, virtually airtight windows, but I am not sure they have the necessary weep holes . 23. Weep holes are located throughout the tunnel and are colonised by small bats, including the large-footed myotis.24. If there are no crimps or weep holes , call Harvey to see what the company can do. 25. A . The vinyl people say that the weep holes are sufficient for release of water vapor. 26. The storms do need weep holes . 27. When the storm windows were installed, the installer caulked the bottom sill of the storms, covering weep holes . 28. The weep holes are there to prevent the buildup of water that could freeze and tear the bricks apart. 29. The wing walls of the bridge are of RCC and are fixed with abutments and have no weep holes . 30. If the columns are hollow, you could drill weep holes in the mortar joints to allow water vapor to escape.
