Abstract: A decorative trim strip and a suspended ceiling construction employing the trim strip with structural T- and L-beams having laterally extending portions or portion, wherein such trim strip is a resilient longitudinal "J" channel section having a lengthwise opening communicating with the interior thereof through which a laterally extending portion of a structural beam can be inserted internally to engage and maintain the decorative trim strip.

Abstract: A clip secure a roofing ridge- or hip-cap to a building structure. The lower part of the clip is anchored to the building structure and the upper part passes between adjacent cap pieces, forming the continuous roof capping, and overlies the upper surfaces of both cap pieces. The clip is adjustable to suit the requirements of individual applications.

Abstract: A roofing system of the batten type using sheet metal components with wooden or metallic batten supports.With the batten supports in place elongated pan sections are laid between the batten supports and secured to the roof by nails or screws at the top or near the top of the adjacent batten supports. Each pan section has a wide flat elongated central region which lies flat on the roof and which is centrally located between two similar upstanding side walls running the full length of the central region and fitting between two successive battens. Each side wall has an inner, downwardly directed double fold running along the side of the adjacent batten support and terminating short of the central region. A batten covering cap having a centrally located top and downwardly directed wings each with an inner upwardly folded edge fitting behind the double fold is positioned in place by sliding it longitudinally over the associated batten support.

Abstract: A building unit. The unit comprises a panel with a flange extending substantially normally from each of at least two opposing sides. Attachment means are formed in the flanges so that one panel can be attached to a panel formed with similar flanges to construct a strong, easily erected building that can be of large area and easily insulated.

Abstract: A building dome structure is formed by splicing long rafter sections into rafters and then lifting the rafters into positions extending meridionally between an upper compression ring and a lower tension ring. Then individual purlins are raised into positions between the adjacent rafters and attached thereto by purlin connecting means. Condensate channels along the rafter and purlin members collect condensation from glazing panels which are supported along their marginal edges by the rafters and purlins.

Abstract: A panel wall construction using box-tee sheet metal shapes wherein the panels may be inserted in channels of the sheet metal shape or clips may be inserted in slots between the channels of the sheet metal shapes to hold the panels. These same shapes may be used for mullions, base sills and top caps thereby producing a panel wall system wherein no screw-type fasteners are required to hold the panels in place. The disclosed panel wall construction provides a very light weight construction which has great flexibility with respect to panel thickness and width as well as great flexibility of design to accommodate wind loadings.

Abstract: There is disclosed suspended ceiling construction in which the usual grid members are provided, having exposed surfaces which are to be covered by trim bodies, said bodies being connected to the members by the clips of the invention which interengage with the grid members and are connected to the bodies by inserting interlocking elements of said clips into suitable recesses formed in the bodies.