Masonry Magazine March 2011 Page. 35
End dams and corner boots can be purchased as injection molded boots. The benefit of the injected boots and end dams is that they do not leak and they are ready to install. Flashings that the contractor needs to fold and cut require additional trained labor to create a sealed secure corner or end dam. This process can be further complicated by the addition and application of a primer on the adhesive side off the substrate.
A contractor has many weep options from which to choose as the options range from open head joints, weep tubes, honeycomb inserts, polypropylene colored mesh, metal louvered inserts or cotton rope wicks. Weeps commonly are used in the first course of brick directly above the flashing membrane. However, the placement of a secondary weep system at the top of the cavity allows for air movement. The additional air movement allows faster evaporation of moisture during most months of the year. Weeps are placed at varied distances along the flashing. Flashings that the contractor needs to fold and cut require additional trained labor.
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