Self-adhering bead device

A casing joint, the casing joint comprising:

• a first base panel that, with the casing joint mounted at a vertical wall structure, is disposed along a first portion of the vertical wall structure;
• a second base panel that, with the casing joint mounted at the vertical wall structure, is disposed along a second portion of the vertical wall structure adjacent the first portion;
• a first stop bead wall extending from an edge region of the first base panel, wherein the first stop bead wall comprises a first side facing the first base panel, a second side opposite the first side, and a flange extending from the first side of the first stop bead wall and at least partially over the first base panel;
• a second stop bead wall extending from an edge region of the second base panel, wherein the second stop bead wall comprises a first side facing the second base panel, a second side opposite the first side and a flange extending from the first side of the second stop bead wall and at least partially over the second base panel;
• a flexible spacing element disposed between the second side of the first stop bead wall and the second side of the second stop bead wall, wherein the first stop bead wall and the second stop bead wall are spaced from one another by the flexible spacing element;
• wherein the flexible spacing element comprises a surface spaced from the second side of the first stop bead wall by a pair of side walls of the flexible spacing element;
• wherein the surface of the flexible spacing element includes a partially convex surface including a central convex bulb portion and first and second flat surface portions that extend laterally from opposing ends of the central convex bulb portion;
• wherein, with the casing joint mounted at the vertical wall structure, the first base panel and the first stop bead wall receive a surface material of the first portion of the vertical wall structure and the second base panel and the second stop bead wall receive a surface material of the second portion of the vertical wall structure;
• and
• wherein, with the casing joint mounted at the vertical wall structure and in response to an expansion of the surface material of the first portion of the vertical wall structure and the surface material of the second portion of the vertical wall structure, the flexible spacing element is compressed between the first stop bead wall and the second stop bead wall.

A casing bead, the casing bead comprising:

• a base panel that, with the casing bead mounted at a vertical wall structure, is disposed along the vertical wall structure;
• a stop bead wall extending from an edge region of the base panel, wherein the stop bead wall comprises a first side facing the base panel, a second side opposite the first side, and a flange extending from the first side of the stop bead wall and at least partially over the base panel;
• wherein the flange comprises a biasing portion at an end of the flange distal from the stop bead wall and extending from the flange toward the base panel;
• wherein the biasing portion, when a rigid wall surface material is disposed between the flange and the base panel, engages the rigid wall surface material and biases the rigid wall surface material toward the base panel to retain the rigid wall surface material at the casing bead;
• a flexible spacing element disposed at the second side of the stop bead wall;
• wherein the flexible spacing element comprises a surface spaced from the second side of the stop bead wall by a pair of side walls of the flexible spacing element;
• wherein the surface of the flexible spacing element includes a partially convex surface including a central convex bulb portion and first and second flat surface portions that extend laterally from opposing ends of the central convex bulb portion;
• an adhesive element disposed at the surface of the flexible spacing element;
• wherein, with the casing bead mounted at the vertical wall structure, the adhesive element engages a structure adjacent to the vertical wall structure to adhesively attach the casing bead at the structure;
• wherein, with the casing bead attached at the structure, the flexible spacing element is disposed between the stop bead wall and the structure;
• and
• wherein, with the casing bead attached at the structure and in response to an expansion of the structure, the flexible spacing element is compressed toward the stop bead wall.