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FLASHING... Tying the loose ends |
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Installation Over Wall Openings |
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If not properly flashed, all masonry wall openings possess a potential moisture problem. In brick veneer systems there are two distinct methods for properly installing the flashing membrane, as shown in Figures 1 & 2. In Figure 1 the flashing membrane* is turned up at the ends and placed inside the head joint, forming a dam. This acts as a directional aid, guiding water through the weep holes to the exterior surface of the wall. In Figure 2 a self adhesive preformed end dam is placed under the flashing membrane. (shown on top of flashing in the drawing for clarity). |
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Figures 3 & 4 show the complex detail required to properly flash a brick veneer bay window. Preformed end dams are used in a stair-step fashion, culminating with a flashing tray and weep hole to direct collected water out of harms way. |
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Figure3: |
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Figure 4: |
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Preformed self-adhesive corners are also available for baseflashing as shown in Figure 5. |
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Figure 5: |
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