A joint apparatus and method of assembly is disclosed for connecting building components such as panels, door jamb assemblies, windows and other structures. The apparatus includes an engagement structure with retaining elements that couple building components without the need for mechanical fasteners. The retaining element may contain serrations on which an adhesive is applied before a panel or other building component is secured to the joint apparatus. Other building components such as hinge assemblies include coupling members with a flange. The slots along a retaining element allows coupling members to snap fit into the joint apparatus once a flange is secured into the slots in order to lock the components.