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.
Retractable wall to wall (no posts) waterPROOF (not waterRESISTANT) patio and deck cover system. Visit the link below for complete information: http://www.retractableawnings.com/patio-cover-awnings/rimini.html More