A module for the production of concrete parts has a row of displacement bodies that are adjacently arranged in a horizontal longitudinal direction (L) and that are clamped captively to a grid structure made of at least two individual grids running in the longitudinal direction (L). Surfaces of the grids are oriented in a transverse or inclined manner in relation to the horizontal. Each of the grids has at least a first and a second longitudinal bar arranged at a distance in parallel to one another and running in the longitudinal direction (L) and a plurality of transverse bars being arranged at a distance from one another and oriented in a transverse or inclined manner in relation to the horizontal. The transverse bars are respectively connected with the longitudinal bars. One of the displacement bodies for each grid has a first and a second retaining device.

In one aspect, composite construction materials are described herein. In some embodiments, a composite construction panel comprises a substrate layer, a cover layer separated from the substrate layer by one or more spacers, and at least one mat disposed between the substrate layer and the cover layer, wherein the mat comprises at least one phase change material disposed in at least one phase change region.

A method for manufacturing acoustical elements, includes providing a first fibre component in a form of mineral wool and a second fibre component in a form of bicomponent fibres having a core with a thermoplastic outer layer, mixing the first fibre component and the second fibre component, for provision of a mixture, shaping the mixture into single layered tile shaped elements whereby the mixture is compressed with a compression ratio to a compressed state, and fixating the single layered tile shaped elements in the compressed state for obtaining the acoustical elements.

In one aspect, a folded ceiling baffle is constructed from a sheet of felt. For example, in a particular implementation, the folded ceiling baffle is constructed from a sheet of felt having respective portions of shape and size that may be folded to form the ceiling baffle.

An end cap for a ceiling panel of a ceiling system. The end cap includes a face plate having an inner surface, a bottom edge, a top edge, a first side edge, and a second side edge. A first insertion plate extends from the inner surface of the face plate at the top edge of the face plate. A second insertion plate extends from the inner surface of the face plate at the bottom edge of the face plate. A concealment portion extends from the inner surface of the face plate along the first and second side edges of the face plate. The concealment portion may include an upper section positioned above the first insertion plate and spaced from the first insertion plate by a first gap and a lower section of positioned below the second insertion plate and spaced from the second insertion plate by a second gap.

A baffle assembly for installation on a finished ceiling or wall membrane comprising an elongated base and an elongated panel mountable on the base, the base having fastening areas spaced along its length for receiving fasteners therethrough and anchored on the membrane, the panel having front and rear edges bounding a width of the panel, the panel having a hollow space at the rear edge extending along substantially the full length of the panel, the hollow space being constructed and arranged to receive the base and the base being constructed and arranged upon reception in the hollow to laterally stabilize the panel, the base and panel having interengaged parts concealed in the hollow that maintain the panel on the base.

An architectural fixture assembly including a generally U-shaped first beam having a bottom side, a first side, a second side, and a first end. Interior surfaces of the first, second, and bottom sides of the first beam define an interior portion. A connector includes a plate, and a connection key extending away from the plate. The interior surfaces of the first and second sides each include a generally V-shaped alignment notch disposed generally adjacent to the first end of the beam. The connection key includes a pair of generally V-shaped sides disposed on opposite sides of the connection key, and each generally V-shaped side is configured to slidably engage one of the generally V-shaped alignment notches.

A suspended ceiling comprising SUSPENDED metal runners in a horizontal plane, the runners each having a horizontal flange having an effective vertical thickness, a plurality of rectangular drywall sheets aligned crosswise to the runners and screwed to the flanges with ends of the drywall sheets forming butt joints midway between adjacent runners, boards overlying butt joints and adjacent flanges, the boards being substantially stiffer than the drywall sheets, whereby the drywall sheet ends are drawn up towards an upper level of the flanges when screwed against the overlying board so that a pseudo taper is formed on the drywall sheet ends.

A structure-lining apparatus comprising a plurality of transversely and longitudinally extending panels connectable to a structure and connectable edge-to-edge via complementary connector components on their longitudinally extending edges. Each panel comprises transversely extending edges generally orthogonal to their longitudinally extending edges. Each panel comprises first and second complementary connector components on first and second longitudinally extending edges thereof. The apparatus comprises at least one edge-to-edge connection between a first connector component of a first panel and a second connector component of a second panel wherein a primary male connector component of the second connector component of the second panel is extended into a primary female connector component of the first connector component of the first panel and a secondary male connector component of the first connector component of the first panel is extended into a secondary female connector component of the second connector component of the second panel.

An architectural fixture assembly includes a first beam and a second beam which are configured to be coupled together. The first beam includes a bottom side and first and second sides extending from the bottom side. The first and second sides of the first beam include notches extending upwardly from a bottom end of the first beam. The second beam includes a bottom side and first and second sides extending from the bottom side. The first and second sides of the second include notches extending downwardly from a top end of the second beam. The first and second beams may be coupled together by engagement of the notches of the first beam with the notches of the second beam.