Abstract: This invention relates to a curtainwall system having panels mounted on a grid formed of vertical and horizontal mullions having a planar or flat exterior surface. Each of the panels is provided with a frame formed of hanger sections having a groove facing the interior of the frame. A panel engaging clip has one end inserted in the groove of the hanger frame and the other portion of the clip secured to the grid. The clip urges the hanger against the weatherstripping of the grid to provide an air and dust tight seal. A polyurethane block is mounted in the space between adjacent panels and thereafter a silicone is extruded into the space.

Abstract: A method of replacing damaged panels of a cladding system includes the use of a replacement panel. The replacement panel includes a sheet having a side hanger secured to a major surface of the sheet at each of opposed sides of the sheets and extending beyond their adjacent side of the sheet and a bottom hanger secured to the major surface of the sheet adjacent bottom edge of the sheet and having an exterior facing groove. After the damaged panel is removed, an opening is provided defined by the top hanger of the removed panel, vertical splines and a horizontal spline. The exterior groove of the bottom hanger is mounted on the horizontal spline and the panel tilted in position against adhesive provided on outer surface of top hanger. Extending portions of the side hangers are screw fastened to underlying ones of the vertical splines. Thereafter, the space between the previously installed panel and replacement panel is filled with a layer of silicone.

Abstract: This invention relates to a curtainwall system having panels mounted on a grid formed of vertical and horizontal mullions having a planar or flat exterior surface. Each of the panels is provided with a frame formed of hanger sections having a groove facing the interior of the frame. A panel engaging clip has one end inserted in the groove of the hanger frame and the other portion of the clip secured to the grid. The clip urges the hanger against the weatherstripping of the grid to provide an air and dust tight seal. A polyurethane block is mounted in the space between adjacent panels and thereafter a silicone is extruded into the space.

Abstract: A method of replacing damaged panels of a cladding system includes the use of a replacement panel. The replacement panel includes a sheet having a side hanger secured to a major surface of the sheet at each of opposed sides of the sheets and extending beyond their adjacent side of the sheet and a bottom hanger secured to the major surface of the sheet adjacent bottom edge of the sheet and having an exterior facing groove. After the damaged panel is removed, an opening is provided defined by the top hanger of the removed panel, vertical splines and a horizontal spline. The exterior groove of the bottom hanger is mounted on the horizontal spline and the panel tilted in position against adhesive provided on outer surface of top hanger. Extending portions of the side hangers are screw fastened to underlying ones of the vertical splines. Thereafter, the space between the previously installed panel and replacement panel is filled with a layer of silicone.

Abstract: An exterior building cladding system has anchor and washer arrangements for securing horizontal furrings in spaced relation to one another and to the exterior of the building. Top hanger on inside surface of the panels is mounted on the horizontal furring and the bottom hanger of the top panels are joined to top hanger of adjacent bottom panel by a horizontal spline which mounts the horizontal furring. Side hangers of adjacent panel are joined together by a vertical spline.