A method for implementing a channel (56) includes providing a preform (20) having a recess (22) therein and heating a channel implementation element (30) to a temperature greater than a melting temperature of a material of the preform (20). An external contour of the channel implementation element (30) at least regionally corresponds to an internal contour of the channel (56) to be implemented. The method then moves the heated channel implementation and/or the preform (20) in relation to one another so that the heated channel implementation element (56) at least regionally moves into the recess (22) in a moving-in direction. The material of the preform (20) is at least partially melted in a region around the recess (20) and is at least partially displaced by the channel implementation element (30), wherein at least a part of the channel (56) to be implemented is thus implemented.

An acoustic attenuation device having two inserts made of acoustically absorbent material, the two inserts being different from each other and being separated from each other so as to delimit between them a longitudinal slot, each insert including a front surface intended to be oriented towards a space to be acoustically attenuated; and two support elements which are made of substantially acoustically impermeable material and which at least partially delimit an internal cavity in which the two inserts are disposed, each support element including a cover part partially covering the front surface of a respective insert such that the front surfaces of the two inserts are partially exposed, the two cover parts delimiting at least one passage opening which emerges into the internal cavity and which is located at least partially opposite the longitudinal slot so as to clear an access to the longitudinal slot.

The present disclosure relates generally to fiberglass panels, for example, suitable for acoustic ceiling surfaces. The present disclosure relates more particularly to an acoustic panel having a top surface, a bottom surface, and a perimeter edge. The acoustic panel includes a layered fiberglass panel body including a core fiberglass layer and a high density fiberglass layer secured to a lower face of the core fiberglass layer. The high density fiberglass layer has a higher density than the core fiberglass layer. The layered fiberglass panel body includes an outward projection at the perimeter edge of the acoustic panel that is formed by the high density fiberglass layer and a portion of the core fiberglass layer. A supporting perimeter frame extends around the outer edge of the core fiberglass layer, and the outward projection of the layered fiberglass panel body extends outward beneath the supporting perimeter frame.

A light fixture for mounting in a t-bar ceiling structure, the light fixture includes a housing configured to support a ring-shaped lens to at least partially surround an inner reflective surface, the inner reflective surface being configured to at least partially reflect light incident thereon from the lens, to present a mirage effect in a transition zone near the lens.

Buildings, particularly high-rise buildings, are retrofitted with a fire resistant liquid-applied material, preferably a material that intumesces with heat, where the exterior of the building is formed of metal clad combustible foam composite panels. Once the fire resistant coating has been applied, new thin panels matching the original fascia are installed outside the original composite panels, with space between, so that the appearance of the building is maintained.

Buildings, particularly high-rise buildings, are retrofitted with a fire resistant liquid-applied material, preferably a material that intumesces with heat, where the exterior of the building is formed of metal clad combustible foam composite panels. Once the fire resistant coating has been applied, new thin panels matching the original fascia are installed outside the original composite panels, with space between, so that the appearance of the building is maintained.

A ceiling panel according to the present invention has opposed translucent membranes secured in a tensioned state across a perimeter frame. The frame includes frame members that are designed to oppose inward bowing of the perimeter frame caused by the tensioned membranes. The frame members have a side profile shaped to conceal a grid support network with the lower translucent member extending across and about a lower edge of the perimeter frame. The invention also includes a modified structure for supporting of translucent panels below a grid network.

A ceiling support system includes a support beam configured to enable modular assembly of the dropped ceiling and including a core portion. A length of a face of the core portion extends along a first axis transverse to a length of first and second lateral sides of the core portion, which extends along a second axis. The support beam includes a base, a first hook extension having a first clip ledge extending from the first lateral side of the core portion and a first lip extending from a first distal edge of the first clip ledge, and a second hook extension having a second clip ledge extending from the first lateral side of the core portion and a second lip extending from a second distal edge of the second clip ledge. The first hook extension and the second hook extension are configured to receive a slidable joining clip therebetween.

The invention provides suspended or dropped ceiling systems based upon the use of standard inverted T-bar lattices. The ceiling panels are constructed from two pieces which, when assembled in place, capture the T-bar in a manner that prevents the panels from shaking loose. A suspended ceiling assembled with the panels of this invention will withstand the forces of an earthquake without experiencing panel drop-outs, and the ceiling will remain intact so long as the T-bars remain suspended from the structural ceiling above. The panels of the invention can, in preferred embodiments, carry lighting fixtures, and the required wiring can be installed and concealed below the T-bars rather than within the plenum space.

There is provided a light-emitting acoustic panel that may be mounted in a ceiling. The light-emitting acoustic panel comprises a sound-absorbing layer and a light-transmissive layer arranged in parallel such that a space is formed in-between. In the space a light source and a reflector are arranged such that light emitted by the light source is redirected by the reflector and emitted towards a reflective side of the sound-absorbing layer. There is further a duct arranged through the light-emitting acoustic panel. In the duct, devices providing functionalities such as sensing, sound, lighting may be arranged. The outer surface of the duct, facing the space between the sound-absorbing layer and the light-transmissive layer comprises a specularly reflective surface.