Abstract: An architectural cladding kit; and a method of preparing architectural masonry slips for subsequent attachment to a substrate employs a plurality of joint brackets having a base and two free ends. The joint brackets engage with a plurality of substantially rectangular masonry slips, each slip including an outer face; an inner face; two oppositely directed edge faces; and a slot formed in each edge face. The joint bracket is attachable to a substrate such as a building structure. Each joint bracket free end is adapted for engagement within the slot formed in an edge face of two opposed masonry slips which are attached to the substrate by an adhesive. The joint brackets ensures that the masonry slips cannot fall even if the adhesive connection were to fail.