Embodiments include fenestration units with active sound canceling properties, retrofit units with active sound canceling properties and related methods. In an embodiment a fenestration unit with active sound canceling properties can include an glazing unit including an exterior transparent pane, an interior transparent pane, and an internal space disposed between the exterior and interior transparent panes. The fenestration unit can include an active noise cancellation system including an exterior module including a sound input device and a signal emitter. An interior module can include a signal receiver to receive the signal from the signal emitter, and a vibration generator configured to vibrate the interior transparent pane. A sound cancellation control module can control the vibration generator to vibrate the interior transparent pane and generate pressure waves causing destructive interference with a portion of the sound waves received by the sound input device. Other embodiments are also included herein.

The present invention relates to a glazed panel device (1) for a building, comprising an outer glazed wall (2) and an inner glazed wall (3), a frame (4) for attaching the walls (2, 3) to a structure (100) of said building, providing a cavity (5) therebetween with said outer glazed wall (2) inclined with respect to a longitudinal median plane of said panel (1), said cavity (5) converging towards an edge (20) towards a communicating cell (6) and leading to an opening towards the outer wall (3), said cell (6) being provided with at least one acoustic insulation (60). The device is characterized in that it comprises at least one sound and/or heat shield, located in the upper and/or lower part of said frame (4), oriented towards the center of said device, according to a slope that flares out with respect to said longitudinal median plane of said panel (1).

A first object of the invention is to provide an interlayer film for laminated glass which has excellent sound insulating properties and heat shielding properties, and a laminated glass using the same. Further, a second object of the invention is to provide an interlayer film for laminated glass capable of maintaining the sound insulating properties, weather resistance, and heat creep resistance at a high level even if the thickness is reduced, and a laminated glass using the same.

The invention relates to an interlayer film for laminated glass, including at least one layer A containing a thermoplastic elastomer, wherein a laminated glass in which the interlayer film for laminated glass is disposed between two clear glasses with the total thickness of the clear glasses being 4 mm or less has a visible light transmittance of 70% or more and an average transmittance of infrared light in the wavelength range of 800 to 1,100 nm of 72% or less.

An insulating glazing unit having a first pane, a second pane, a third pane arranged between the first pane and the second pane, an outer pane interspace, an inner pane interspace, and a spacer is described. The spacer having a plastic profile with a first glazing interior surface and a second glazing interior surface, a first pane contact surface, a second pane contact surface, a primary sealing means, and a main member containing a sealing material and a drying material. The plastic profile includes a groove, into which the third pane is inserted and which runs parallel to the first pane contact surface and to the second pane contact surface. The plastic profile separates the outer pane interspace from the inner pane interspace. The main member is arranged in the outer pane interspace between the plastic profile and the primary sealing means, the main member being adjacent the plastic profile and the primary sealing means.

Attenuators are introduced that offer quiet, enhanced sound quality for interior of enclosures than previous devices. An acoustical rating system for the levels of sound propagation through glass windows/windshields is introduced for the building and construction industry. Just as windows and insulation have an R-value to define the temperature energy efficiency of the interior of a room, an A-Rating system would define the acoustical energy efficiency of an enclosure space. In the summer, the higher the R-value, the less cool air that escapes a room through a window (and the less heat that penetrates into the interior), thus keeping the room cooler with less energy. Similarly, the higher the A-Rating of a window, the less noise that propagates through, maintaining lower levels of sound in the interior of an enclosure, creating a more harmonious, acoustically energy efficient room for enhanced health, preventing sleep interference, speech interference, and maintaining adequate levels of safety according to EPA and OSHA standards. The A-Rating system can help set standards for bearable and unbearable windows for a particular house, building, shopping store, restaurant, vehicle-cabin, fuselage cabin, locomotive/train/subway cabin, hotel, apartment, airport, library, museum, or any other enclosure, for a particular area or jurisdiction.

Disclosed is an insulated glazed unit for use in a window or door of a building for reducing the transmission of sound energy there through. The insulated glazed unit comprises a plurality of glass panels each with a front face and a rear face and each of a distinct thickness. In a first embodiment at least one substantially uniform gap is disposed between at least two of the glass panels. At least one plastic film is disposed between the front face of a first glass panel and the rear face of a second glass panel forming a laminated unit. The asymmetric thickness laminated unit in combination with the at least one gap and at least one additional glass panel forms an insulated glazed unit capable of reducing the transmission of sound energy.

Various embodiments of the disclosure are directed towards fenestration assemblies having a first pane; a second pane, the second pane spaced from the first pane; and a third pane configured in spaced relation between the first pane and the second pane, where the third pane is a laminate. In one aspect, the total thickness of the third pane laminate is not greater than 3 mm. In one aspect, the laminate comprises a first glass layer not greater than 1 mm thick and a second glass layer not greater than 1 mm thick, and an interlayer between first and second layers.

Various embodiments of the disclosure are directed towards fenestration assemblies having a first pane; a second pane, the second pane spaced from the first pane; and a third pane configured in spaced relation between the first pane and the second pane, where the third pane is a laminate. In one aspect, the total thickness of the third pane laminate is not greater than 3 mm. In one aspect, the laminate comprises a first glass layer not greater than 1 mm thick and a second glass layer not greater than 1 mm thick, and an interlayer between first and second layers.

A glazing includes at least two glazed panels, which form a cavity between them, and at least one stack of resonators positioned in the cavity, wherein the at least one stack of resonators includes at least two resonators of different length, the resonators of the at least one stack having a longitudinal axis and being stacked along a stacking axis perpendicular to their longitudinal axis.