Accessory kit for a fixed curb-mounted skylight

A method of assembling an accessory tray for a fixed curb-mounted skylight, the method comprising:

• providing a plurality of longitudinal accessory frame members sized and configured to form an accessory frame adjacent to an interior of the skylight, each frame member comprising
• a generally U-shaped base having a centrally located plate, the central plate having a first edge and a second edge, a first rib projecting from the first edge and a second rib projecting from the second edge, the ribs defining a primary longitudinal channel therebetween,
• a horizontal shelf, the shelf characterized as being supported by a base, being integral with the first rib at an end of the first rib distal from the central plate, extending parallel to the central plate over and beyond the second rib, and having ends cut on an angle to form a miter;
• wherein, at each end, the second rib is shorter than the first rib to define a gap between the top of the second rib and the bottom of the horizontal shelf and wherein the second rib includes therethrough at least one aperture;
• providing a plurality of corner keys configured to join the frame members at the respective ends of the frame members, each corner key comprising
• a pair of perpendicular vertically extending profiles, the vertical profiles supporting a horizontal key face,
• each of the vertical profiles being of a shape complementary to the interior of the primary longitudinal channel of the frame members and having at least one detent sized and positioned to interlock the at least one aperture of the second rib,
• each horizontal key face being shaped to fit within the gap between the second rib and the horizontal shelf of the frame member;
• arranging and securing the frame members in a desired shape by inserting the vertically extending profiles of the corner keys into the ends of the frame members, such that the detents on the corner keys interlock the apertures of the second rib and, further, that the horizontal key faces of the corner keys slide into the gap between the top of the second rib and the horizontal shelf of the frame members;
• attaching a pair of brackets to opposing frame members at a position proximate to and equidistant from the respective ends of the opposing frame members, the brackets being configured for holding an accessory within the accessory frame;
• providing an accessory sized to fit within the accessory frame and comprising end portions complementary to the brackets;
• and
• installing the accessory by engaging the end portions of the accessory with the brackets.