Patent ID: 8820013

Claim:
A waterproofing system comprising: a block wall comprising stackable blocks, wherein each block defines an open cell therein, wherein cells within blocks that are above and below one another are in fluid communication with each other; a plate that spans a space from a block wall to and including a drainage trench in a floor adjacent the block wall, the plate comprising a base and a wall extension, substantially perpendicular to one another, the base extends from a point proximate to the wall to the trench, wherein the base and the wall extension are spaced apart substantially in their entirety from the floor and the block wall, respectively; and a vent port including an elongated body having an open channel with a constant diameter extending longitudinally therethrough that joins two open ends, the vent port installed into at least one of the stackable blocks in the block wall such that one end of the open channel is open to an area outside the block wall and another end of the open channel is open to one of the open cells, wherein the vent port comprises: a screen spanning the open channel; a convex annular first lip extending from the end open to the area outside the block wall towards the end open to one of the open cells; and a convex annular second lip extending from the body located between the two open ends, the second lip having a first end with a first diameter and a second end with a second diameter that is less than the first diameter, the first end being arranged closer to the convex first lip than the second end, wherein the convex annular first lip and convex annular second lip are convex in opposite directions; wherein the open channel, open cells with vent ports installed thereto, and the drainage trench are in fluid communication with each other.