Patent ID: 6988343

Claim:
A method of constructing a panelized wall system, comprising: obtaining a plurality of trough-edge building panels, wherein each trough-edge building panel comprises a building panel comprising a front surface, a back surface, and a plurality of edges and a trough on the front surface of the panel extending along an edge of the panel, wherein the trough is spaced inwardly from the edge of the panel, the trough is sized and configured to accept an edge of a backing material applied over a seam between adjacent panels, and the trough comprises a wall and a floor, wherein a side of the trough proximate to the edge of the panel forms the wall and the floor of the trough is lower than a surface of the panel between the wall of the trough and the edge of the panel; positioning the back surfaces of at least a first and a second trough-edge building panel over a frame, wherein an edge of the first panel along which a trough extends is adjacent to an edge of the second panel along which a trough extends, forming a seam between the first and second panels; fastening the building panels to the frame; and forming an elastomeric joint comprising a backing material adhered over the seam between the first and the second panels, wherein the edges of the backing material are accepted by the troughs extending along the edges of the first and second panels.