Steel Stud Parapet “New Pups.”— Large backer rod supporting a bunch of extra membrane that lets things move when they have to move. The “Zen” approach to membrane movement. Use a more dimensionally stable membrane and then let things move when they have to. Again, notice the continuity of the control layers.
Figure 4: Parapet Water Management—Keep rainwater from getting into the top of them. Slope the top of them inward so they don’t stain the building façade. Make sure there is a waterproof membrane under the coping. And always have drip edges—front and back—so they don’t stain the building façade.