Install all Plaster Parapet Caps using full ten-foot lengths wherever possible. Attach the Parapet Caps over the weather resistant barrier to the framing with nails, screws or other approved fastening methods. Attachment flanges where stucco will be applied must be covered with lath. Fastener heads and butt joints must be sealed with sealant to prevent water intrusion. In addition, the roofing membrane must be installed over the horizontal flange of the parapet cap to prevent water intrusion on the roof side of the installation prior to the sheet metal flashing installation. Flannery recommends a carbide tip blade with lubricant be used when cutting any extruded aluminum trims
