Patent ID: 8146312

Claim:
A garage door segment for use in a garage door comprising a plurality of such segments and an opening and closing mechanism, said door being movable between an open substantially horizontal position and a closed substantially vertical position in which the door closes an opening to a garage, the garage opening having a width, the garage door segment comprising: a panel member having a length, the panel member comprising a lightweight insulative substrate, the substrate having an exterior face and an interior face, the interior face having an upper protruding portion and a lower protruding portion, at least one recessed seat portion being formed in the substrate between the two protruding portions and extending substantially the length of the panel member; at least one reinforcing member fixed in and substantially filling the at least one seat to provide additional rigidity to the panel member, the reinforcing member extending substantially the length of the seat, wherein the interior surfaces of the protruding portions and the interior surface of the reinforcing member are substantially flush; a mesh for relieving bending stresses on the panel member; a cementitious layer on the exterior face of the panel member, wherein the mesh is located within the cementitious layer; and a plurality of connectors attached to the reinforcing member and configured for movably connecting the garage door segment to the garage door opening and closing mechanism.