The invention relates to a mounting device (1) for mounting holding rails (4a, 4b) for lamp housings to cut-outs (3) of suspended walls or ceilings, comprising a substantially rigid frame (15) and, connected thereto, a first holder (2a) for retaining a first holding rail (4a) and a second holder (2b) for retaining a second holding rail (4b), wherein the holders (2a, 2b) are designed to hold the holding rails (4a, 4b) parallel to and at a defined distance from each other. The invention further relates to a mounting system, comprising a mounting device (1) according to the invention and at least two holding rails (4a, 4b)

A ceiling tile comprises a first layer of material and a second layer of a structurally stiff material distinct from the material of the first layer, positioned to be below the first layer when installed in a ceiling, wherein the second layer can support its weight and the weight of other layers. The first layer is visible through the openings in the second layer when installed. The second layer might be steel, aluminum, copper, bronze, brass, or iron with openings cut into the second layer. The first layer can be acoustical fiber, wool, fabric, wood, leather, rubber, and acrylic and supported the second layer, with the openings being sufficiently arranged so that the first layer is fully supported by portions of the second layer that are not the openings. Three or more layers are also possible, with some or all of the layers are visible through lower layers.

In a dropped ceiling assembly system elements are provided which include an elongate planar shelf held below an elongate spine. The shelf has lateral edges which can support edges of a ceiling tile resting thereon. This spine is configured to be held in position either adjacent to spines of other elements within a dropped ceiling or from above, such as by suspension wires passing through suspension holes in the spine. A compartment is provided on an underside of the shelf which is sized and shaped to receive and hold at least a portion of a loudspeaker therein. The loudspeaker mounting system is thus integrated into the shelf which also acts to hold ceiling tiles within a dropped ceiling.

A ceiling system including vertically oriented panel structures. The ceiling system may include a panel structure having first and second exposed major surfaces and a peripheral edge. A first mounting element may be coupled to the panel structure. The first mounting element may include a first portion embedded between the first and second exposed major surfaces of the panel structure and a second portion protruding from the peripheral edge of the panel structure. The second portion of the first mounting element may include a connection feature for attaching to an overhead support member. Each panel structure may have two of the mounting elements coupled thereto, and each of the mounting elements may be configured for attachment to a different overhead support member. A plurality of the panel structures may be vertically suspended from the overhead support members.

An arrangement for ventilating a room contains a supply air duct arranged above an aisle region for delivering air into a room and, arranged above the supply air duct, an exhaust air duct for discharging exhaust air. The supply air duct contains two lateral air delivery portions which extend along the aisle region and each contain air outlet openings from which the supply air exits laterally. A substantially airtight central separating portion separates the first and the second air delivery portions from one another. The exhaust air duct contains two slot-like suction openings which extend substantially parallel to the supply air duct and are arranged in the ceiling such that there is formed on both sides of the aisle region a rolling air flow via which supply air heated in the region of work tables passes in a vertical direction into the region of the ceiling.

The invention relates to a profiled section (10) for temperature-control of a room, said section having a receiving portion (20) for a piping system positioning aid (60), a sealing surface (15), formed at least at the side of the receiving portion (20), and at least one first support (30) for a sealing panel (200), the first support (30) being formed at the side of the receiving portion (20) and pointing in the opposite direction to the sealing surface (15). The invention also relates to a building element assembly (100) comprising a profiled section (10) of this type and to an associated use.

A system for supporting a non-structural building component beneath a soffit of a building. The system has a plurality of suspension assemblies that each have a first elongate non-rigid member, and at least one second elongate non-rigid member. The first elongate non-rigid member is secured at an upper end to a structural portion of the building at a first location, and at a lower end to one of: the non-structural building component, or a support member to which the non-structural building component is secured. The second elongate non-rigid member that is secured at a lower end to one of: the non-structural building component, or the support member to which the non-structural building component is secured, and at an upper end to a structural portion of the building at a second location. The first elongate non-rigid member is oriented substantially vertically. The second location is horizontally spaced from the first location, such that the second elongate non-rigid member is inclined to vertical. When the building is in a stable condition, the tensile force in the first elongate non-rigid member is greater than the vertical component of the tensile force in the second elongate non-rigid member.

A ceiling grid lighting assembly for use in suspended ceiling systems is provided with multiple linear lighting modules in parallel arrangement. End plates are used to connect, support, and enclose longitudinal ends of the elongate body of each linear lighting modules while simultaneously functioning as reflective faces for optical cavities. A configured gap spacing between individual linear lighting modules can be used to house and support components such as additional light sources, acoustic or decorative panels, HVAC components, or power systems, controls or sensors. The end plate can also be configured to allow a T-bar to be placed in the configured gap spacing thereby enabling the mounting of the assembly in-line upon the longitudinal axis of a ceiling grid T-bar. Embodiments of linear lighting modules are presented comprising LED light sources, light guides and diffusers housed within the elongate body. The light guides may be edgelit from one or two sides and aligned horizontally or tilted relative to the ceiling grid plane.

A modular dynamic acoustic system for use in connection with an indoor environment includes a movable panel array, a support structure, and a plurality of suspension members. The movable panel array includes a plurality of panel members, each of which including a body defining at least one edge, at least one hinge positioned along the at least one edge, and at least one mounting structure. The panel members are operably coupled with at least one adjacent panel member via the at least one hinge. Each of the plurality of suspension members is operably coupled with the support structure and the at least one mounting structure of one of the plurality of panel members to secure the movable panel array to the support structure. Each of the suspension members is movable to modify a configuration of the movable panel array.

A manufactured interior wall finish system and a manufactured ceiling finish system are described.