Casing bead apparatus

A ventilation screed, the ventilation screed comprising:

• a base panel configured for attaching at a vertical wall structure;
• a first flange extending from the base panel, wherein the first flange comprises a first side and a second side opposite the first side;
• a second flange extending from the first side of the first flange at an end region of the first flange distal from the base panel, wherein the second flange extends partially along the base panel;
• a third flange extending from the second flange at an end region of the second flange distal from the first flange, wherein the third flange extends partially along the first side of the first flange and spaced from the first flange, and wherein a terminal end of the third flange distal from the second flange is spaced from the base panel;
• wherein the first flange, the second flange, and the third flange cooperate to define a three-sided ventilation cavity of the ventilation screed;
• a spacing element disposed at the second side of the first flange;
• wherein the spacing element comprises a convex surface spaced from the second side of the first flange;
• and
• wherein, with the base panel attached at the vertical wall structure, the convex surface of the spacing element is between the first flange and a horizontal surface that is perpendicular to the vertical wall structure and the convex surface flexes relative to the first flange to accommodate movement of the horizontal surface relative to the ventilation screed.

A casing bead apparatus, the casing bead apparatus comprising:

• a base panel configured for attaching at a vertical wall structure;
• a first flange extending from the base panel, wherein the first flange comprises a first side and a second side opposite the first side;
• a second flange extending from the first flange at a distal end of the first flange distal from the base panel, wherein the second flange extends partially over the base panel;
• a spacing element disposed at the second side of the first flange;
• wherein the spacing element comprises a convex surface spaced from the second side of the first flange;
• an adhesive element disposed at the convex surface of the spacing element;
• wherein the adhesive element is configured to engage a horizontal surface perpendicular to the vertical wall structure, and wherein, with the base panel attached at the vertical wall structure, the adhesive element engages the horizontal surface perpendicular to the vertical wall structure to adhesively attach the casing bead apparatus at the horizontal surface;
• and
• wherein, with the adhesive element engaged with the horizontal surface, the spacing element is disposed between the first flange and the horizontal surface.