Patent ID: 6964136

Claim:
A cavity wall construction comprising: a support member; an inner wall extending upwardly from the support member and including an outer face; a vapor barrier substantially covering the outer face of the inner wall to inhibit moisture from penetrating into the inner wall; an outer wall extending upwardly from the support member, having an inner face confronting the outer face of the inner wall and being generally parallel to and spaced from the inner wall, the inner and outer walls defining a cavity there between; wherein the outer wall is comprised of courses of masonry components held together with mortar; a flashing located proximate an interruption in the cavity wall construction and having a first portion covering a lowermost portion of the inner wall and a second portion extending along the support member to span the cavity and underlay the outer wall, the first and second portions being generally perpendicular to each other; and a plurality of weep channels each spaced from one another, each of the weep channels extending along at least part of the first portion and at least part of the second portion of the flashing toward a terminal edge thereof; wherein each of the weep channels is positioned in the mortar between adjacent masonry components in a lowermost course of the outer wall; wherein water between the inner and outer walls escapes to the exterior of the cavity wall construction via the weep channels.