Patent ID: 8850767

Claim:
A channel screed for use within a surface of a structure, the channel screed comprising: a first member comprising an internal channel defined by opposed walls extending from a base, a bottom slot, and a pair of opposing side slots, wherein the base is attachable to an underlying element of the structure, and wherein a building material, used to form the surface of the structure, extends along outside surfaces of the opposed walls; a second member that is connected with the first member to at least partially cover the internal channel; wherein the second member comprises an internal channel that fits inside the internal channel of the first member; wherein the second member comprises opposed walls that fit within the opposed walls of the first member, and wherein the second member includes a flange extending outwardly from a top edge of each wall, the flanges extending over respective top edge surfaces of the first member walls; wherein the flanges are capable of breaking at a predetermined distance from the first member at a breakpoint, wherein the breakpoint is a microgroove at the juncture between the flanges and side walls of the second member.