An aluminum window wall head frames the top of the vision glass below a continuous pre-finished metal flashing. A foil-faced self-adhesive membrane and weather-resistive barrier protect the backup wall assembly behind hat channels with weep holes. A one-half-inch typical clearance is maintained at the flashing termination.
WEATHER-RESISTIVE BARRIER FOIL FACE SELF ADHESIVE MEMBRANE PRE-FINISHED METAL FLASHING ALUMINUM WINDOW WALL HEAD HAT CHANNEL WITH WEEP HOLES 1/2" TYP
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