A partition wall sound insulation structure includes: a floor material on which a floor surface facing an indoor space side is formed; a ceiling material on which a ceiling surface is formed, the ceiling surface being opposed to the floor surface in a vertical direction with an indoor space interposed therebetween; a partition wall that extends in the vertical direction so as to partition the indoor space in a horizontal direction and that is disposed with a gap from at least one surface of the floor surface and the ceiling surface; and a sound insulation material made from an elastic material and including a portion disposed in the gap while being compressed in the vertical direction.

A laminated structure for use in retrofit building construction (partition, wall, ceiling, floor or door) that exhibits improved acoustical sound proofing characteristics while being optimized for efficient installation. The laminated structure includes a panel with at least one layer of viscoelastic glue, or fire-10 resistant, viscoelastic glue, which functions both as a glue and an energy dissipating layer. In one embodiment, the laminated structure to be attached to an existing wall in some embodiments includes standard paper-faced gypsum board. In another embodiment the to-be-applied laminated structure includes a cement-based board, and in yet another embodiment the to-be-applied laminated 15 structure includes a cellulose-based board. Once the laminated structure is installed on an existing wall or other partition, the resulting structure greatly attenuates transmitted noise and minimizes the labor required for installation and finishing.

A method for changing acoustics of a performance space may include mounting a plurality of panel assemblies to a ceiling or a portion of a ceiling of the performance space. Each panel assembly of the plurality of panel assemblies may include one or more acoustic panels. The exemplary method may further include changing a distance of the one or more acoustic panels of each panel assembly of the plurality of panel assemblies from the ceiling by coupling the one or more acoustic panels of each panel assembly of the plurality of panel assemblies with a first actuating mechanism, and actuating a linear vertical movement of the one or more acoustic panels of each panel assembly of the plurality of panel assemblies along a first axis perpendicular to the ceiling utilizing the first actuating mechanism.

One variation of the tile display includes a set of tile assemblies, each tile assembly includes: a base plate; a tile panel; a tile interface; and a set of linear actuator assemblies arranged in a radial pattern about the base plate and cooperating to constrain the tile panel in angular roll, linear heave, and linear sway motion relative to the base plate. Each linear actuator assembly includes: a bearing housing defining a linear bearing, a floating bearing, and a through-hole; an actuator mounted to the bearing housing; a distal link coupled to the tile interface; a first support boom running through the linear bearing; a second support boom running through the floating bearing; and a driven boom running through the through-hole of the bearing housing. Each tile assembly also includes a primary controller configured to maneuver tile panels over ranges of angular pitch, angular yaw, and linear surge positions.

A glass wool panel, intended to be used as an acoustic panel, has a density of less than or equal to 130 kg/m.sup.3, an air flow resistivity of between 30 and 120 kPa.Math.s/m.sup.2, a Young's modulus of between 0.5 and 4 MPa.

A shear panel building material that includes a first facing membrane, a core matrix disposed on a face of the first facing membrane, and a semi-rigid or rigid material attached to the core matrix. The core matrix can include microspheres having a size of about 200 microns to about 800 microns, sodium silicate, and ethylene vinyl acetate. In one aspect, the shear panel is substantially free from glue and cement.

The present invention is directed to ceiling panels formed from a porous scrim that is coupled to an acoustical substrate using a scrim attachment system that includes an adhesive.

The application relates to a nonwoven composite containing a plurality of solid regions and a plurality of porous regions. The solid and porous regions form a repeating pattern on the surface of the composite. The solid regions contain a solid region nonwoven layer, an optional solid region polymer-fiber infused layer, and a solid region cap layer. The solid region nonwoven layer contains a plurality of first staple fibers and less than about 5% by volume of a first polymer. The solid region cap layer contains the first polymer and less than about 5% by volume of the first staple fibers. The porous regions contain a porous region nonwoven layer and a porous region polymer-fiber infused layer. The porous region nonwoven layer contains a plurality of the first staple fibers and less than about 5% by volume of a first polymer. The porous region polymer-fiber infused layer contains a plurality of pores.

In accordance with various embodiments, lighting systems features one or more inter-connectable light panels each having multiple light-emitting elements thereon. One or more of the light panels may feature one or more connectors, and associated conductors, for the transmission of power, communication signals, and/or control signals. One or more of the light panels may include sound-absorbing material therebelow and may define one or more apertures and/or cut-out regions that reveal the sound-absorbing material.

A sound damping wallboard and methods of forming a sound damping wallboard are disclosed. The sound damping wallboard comprises a gypsum layer with a gypsum surface having an encasing layer. The encasing layer is partially removed to expose the gypsum surface and form a gypsum surface portion and a first encasing layer portion on the gypsum layer. A sound damping layer is applied to the gypsum layer to cover at least part of the gypsum surface portion and the encasing layer portion.