J-Weep is commonly used as a plaster stop at the top of doors and windows over traditional head flashings. J-Weep is nail, screw or staple-attached to the frame or sheathing, then foam insulation, cement board or metal lath can be installed over it. In any case, the protruding ridge of the metal must extend beyond the plane of overlaid materials to serve as a ground for the stucco or EIFS application. Installed in conjunction with 1" rigid insulation associated with one-coat plaster stucco systems, the 1-3/8" ground provides proper depth for plaster keying. Galvanized for corrosion protection, it also is available with weep holes.