Abstract: A roof structure may be made with one or more sandwich panels having a round corner and installed with a drainage slope (e.g., 5-10 degree) to facilitate removal of liquid (e.g., water, rain, snow, sleet, etc.) from the roof structure. The round corner may have any desired curvature and/or angle for establishing a drainage area. A bonding material may be used to secure and/or seal the underlying interface of the round corner. The roof structure may be secured to an exterior wall by the bonding material.

Abstract: The edge of a construction element, such as a sandwich panel having a core and two outer layers, is closed such that forces acting on the construction element are directed to the outer layers and generally not through the panel core. A portion of the core may be removed to define a cavity within the construction element. A bonding material closes the edge by filling the cavity and forming a new edge that is substantially coplanar to the edges of the outer layers. The edge also can be closed by inserting the edge into a U-profile bracket and connecting the outer layers of the panel to side walls of the U-profile bracket.

Abstract: A straight joint and method for connecting two adjacent construction elements, such as sandwich panels, so as to reduce or minimize thermal bridging across the elements. The sandwich panels each have a core, an outer layer, a cavity defined by a portion of the core, and a pathway through the outer layer to the cavity. The panels are erected such that the panel cores are in contact with one another. Bonding material is injected into the cavity through the pathway to seal the joint and maintain the panels in fixed relation to one another.