Applications of flashing at cast-in-place penetrations (such as pipes or vents) are similar for both vertical and horizontal waterproofing applications.
In situations where the parapet wall extends above the maximum 12-inch flashing height and wall waterproofing is required, there are several options. In the case of concrete or masonry walls: waterproofing can be provided by installation of a membrane covering, a metal covering or a waterproofing coating.
The waterproofing substrate must be properly prepared prior to the application of the plaza drain flashing material. Any openings and/or defects in the substrate must be properly repaired.
In an inverted membrane system, the conventional membrane arrangement is inverted or turned upside down. Inverted roof membrane assembly (IRMA) systems are used in applications where the membrane requires protection from site-specific hazards.
Waterproofing of the under-slab can be as critical to the success of weatherproofing a building as waterproofing below-grade walls. This often-overlooked component has led to a tremendous amount of damage through moisture entry in both liquid and vapor form. Moisture enters the concrete slab at all of the usual suspected areas, such as openings, joints, penetrations and cracks that form over time.
Detail courtesy of Alvaro Mejia, IRT Inc. This detail provides proper application method of sheet or reinforced membrane waterproofing systems. The vertical footing wall/slab intersection is a vulnerable location and
Vertical Corner Flashing DetailThis detail provides proper application method of sheet or reinforced membrane waterproofing systems. The corner of a wall is a vulnerable location and it requires additional protection
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