Abstract: A sound insulating element includes a single body made of a mineral fibre material having acoustically insulating properties, the body including a front surface, a rear surface and a side surface connecting the front and rear surfaces. A suspended ceiling system to be suspended from a structural ceiling includes a plurality of ceiling tiles, and at least one of the ceiling tiles is a sound insulating element.

Abstract: A suspended ceiling system (1) comprising a plurality of ceiling tiles and a grid (100) of profiles (40) for supporting the plurality of ceiling tiles, the grid (100) of profiles (40) comprising at least a first and a second profile (40) configured to be interconnected along a longitudinal axis, the first and second profile (40) each comprising two laterally extending flanges (43) and an upstanding web (44) provided with a bulb (41) at its free end, wherein each of the first and second profile (40) has a curved extension and is configured to be installed such that it, in an installed and unloaded condition, bulges in an upward direction.

Abstract: An acoustic panel made of a compressed mineral fibre material including two major surfaces and at least one side edge connecting the two major surfaces is provided. The panel has a perimeter region associated with the at least one side edge and delimiting a central region. The acoustic panel includes a first reinforcing structure having a strip-shaped extension across the inner boundary portion from a first position in the perimeter region to a second position in the perimeter region. Further a baseboard is provided.

Abstract: An acoustical geopolymer panel element includes a layer including a fibre component and a geopolymer binder made from a mixture including ground mineral wool, and an additional layer including mineral wool. The layer including a fibre component and a geopolymer binder has a density in the range of 20-400 kg/m3, a porosity in the range of 0.75-0.99 and a thickness in the range of 5-75 mm. The ground mineral wool may be ground glass or stone wool and the fibre component may be a wood fibre component, a polymer fibre component and/or a mineral wool component. Further, a geopolymer mixture is provided upon recycling mineral wool which is ground to powder and mixed with an alkali activator component. Additionally, a method for producing acoustical geopolymer panel elements includes grinding elements including mineral wool for provision of a powder component.

Abstract: A system for recycling planar objects including compressed mineral fiber material includes: a conveyor arranged to covey the planar objects through a number of stations at least including a thickness measurement station and a sound measurement station. The sound measurement station includes a sound reflecting surface arranged to back a first major surface of a planar object, a sound emitter arranged to emit sound towards the sound reflecting surface, a sound receiver arranged to receive sound reflected from the sound reflecting surface, and a converter arranged to determine a property related to sound absorption. A sorting station is arranged to sort the planar objects based on determined properties in to a plurality of fractions.

Abstract: 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.

Abstract: A computer implemented method for determining an airborne and/or aerosol pathogen risk exposure includes determining an acoustical parameter for a portion of a building, recording, using a microphone in a mobile electronic device located in the portion of the building, sound pressure level over time originating from speech in the portion of the building, and determining the airborne and/or aerosol pathogens risk exposure as a function of the recorded sound pressure over time and the determined acoustical parameter.

Abstract: An acoustic system improves the acoustic quality in a room for speech. The acoustic system includes a room having a first zone, a second zone, and a ceiling. The ceiling includes a plurality of ceiling tiles. The ceiling tiles include a first group of ceiling tiles having sound absorbing properties and a second group of ceiling tiles having sound diffusing properties.

Abstract: A method for coating a tile element includes providing a tile element made of a compressed fibre material having a porosity in the range of 0.92-0.99 and applying a water-based coating material to a side edge surface of the tile element extending between two opposite major surfaces of the tile element. The applying is performed by an applicator head of a continuous vacuum coating apparatus that applies the water-based coating material to the side edge surface of the tile element and removes excess through a vacuum. The water-based coating material is applied at a feeding rate of the tile element relative the applicator head in the range of 25-150 m/min. The water-based coating material forms a coating layer including an outer coating layer and an inner coating layer penetrating the side edge surface. The inner coating layer has penetration depth of at least 100 ?m.

Abstract: A ceiling tile for a suspended ceiling system comprising a grid of profiles for supporting the ceiling tile, the ceiling tile comprises a front surface intended to face a room in an installed state of the ceiling tile and a plurality of spacer elements discretely distributed along a perimeter portion of the ceiling tile. The plurality of spacer elements is formed separately from the ceiling tile, wherein each spacer element comprises a body portion and an anchoring portion for attaching the body portion to the ceiling tile.

Abstract: A method is for installing a ceiling system attached to a structural ceiling surface. The method includes illuminating, in sequence and by a projector, different subsets of a set of optical sensors separately arranged in a known distribution pattern on the structural ceiling surface. Each optical sensor of the set of optical sensors is arranged to output a temporal signal indicative of a level of illumination. The method also includes determining an image plane relative to the projector based on the known distribution pattern of the set of optical sensors and the outputted temporal signals of each of the optical sensors, and displaying, by the projector, an image indicative of installation locations of the ceiling system at the image plane.

Abstract: A secondary profile connector for a suspended ceiling system includes a secondary profile associated with the secondary profile connector and a primary profile having a web provided with an opening for reception of the secondary profile connector. The secondary profile connector includes a tongue arrangement insertable into the opening of the web of the primary profile for releasable connection of the secondary profile connector to the primary profile.

Abstract: A suspended ceiling system includes a polygon-shaped ceiling tile and a grid of profiles supporting the ceiling tile, the grid of profiles defining a frame in which the ceiling tile is arranged and supported. The ceiling tile includes a front surface, a rear surface and at least three side edges extending between the front surface and the rear surface. A side edge portion associated with each side edge includes a top tongue, a bottom tongue, and a groove extending along the side edge portion and separating the top tongue and the bottom tongue. The top tongues include engagement surfaces resting on the supporting flanges of the grid of profiles, and a distal end of each top tongue extends beyond a distal end of the bottom tongue such that a bottom section of the ceiling tile is insertable from above into the frame.

Abstract: A suspended ceiling system (1) comprising a plurality of ceiling tiles and a grid (100) of profiles (40) for supporting the plurality of ceiling tiles, the grid (100) of profiles (40) comprising at least a first and a second profile (40) configured to be interconnected along a longitudinal axis, the first and second profile (40) each comprising two laterally extending flanges (43) and an upstanding web (44) provided with a bulb (41) at its free end, wherein each of the first and second profile (40) has a curved extension and is configured to be installed such that it, in an installed and unloaded condition, bulges in an upward direction.

Abstract: A method for manufacturing a profile member for a suspended ceiling system, comprising forming a sheet metal material into an elongate T-shaped profile member with a web having two web side walls and a pair of oppositely disposed flanges projecting from a bottom portion of the web, and laser welding the elongate T-shaped profile member for providing a laser weld joint extending in a longitudinal direction of the T-shaped profile member and joining the two web side walls to each other. The step of laser welding comprises alternatingly performing a first operation and a second operation, the second operation being different from the first operation, whereby a laser weld joint is provided comprising along its extension alternating welded first sections associated to the first operation and second sections associated to the second operation. The present invention also relates to an elongate profile member provided with a laser weld joint.

Abstract: A ceiling system includes a supporting structure having a plurality of main runners made of an electrically conductive material. The main runners are arranged such that a first space is formed between at least one main runner and a first adjacent main runner and a second space is formed between the at least one main runner and a second adjacent main runner. An electric device is supported by the main runners and is arranged in the first or second space. A power source is arranged to apply an electric voltage between the main runners. The electric device includes connectors that are in electric contact with the main runners such that the electric device is powered by the applied electric voltage.

Abstract: A system for recycling planar objects including compressed mineral fiber material includes: a conveyor arranged to covey the planar objects through a number of stations at least including a thickness measurement station and a sound measurement station. The sound measurement station includes a sound reflecting surface arranged to back a first major surface of a planar object, a sound emitter arranged to emit sound towards the sound reflecting surface, a sound receiver arranged to receive sound reflected from the sound reflecting surface, and a converter arranged to determine a property related to sound absorption. A sorting station is arranged to sort the planar objects based on determined properties in to a plurality of fractions.

Abstract: An absorber tile element includes compressed mineral fiber material and has a first major surface, an opposing second major surface and at least one side edge surface, and an anchor element associated with one of the first and second major surface or one of the at least one side edge surfaces. The anchor element includes a head portion and a threaded portion, the head portion defining an open cavity facing a top surface. An engagement member is arranged in the cavity, and arranged to engage with a hook element. The threaded portion is threaded into the absorber tile element such that the head portion becomes substantially recessed in the absorber tile element. A corresponding tile system can includes the absorber tile element.

Abstract: A cross runner connector for a suspended ceiling system (1) comprising a main runner (10) being provided with an opening (11) for reception of the cross runner connector and having a circumference defining an opening notch (12); and a cross runner (30), the cross runner connector comprising a guiding lip (41) and a locking lip (42) separated by a slit (43) and extending in the longitudinal direction (P2) of the cross runner connector, the guiding lip (41) having a guide edge portion (44) provided with a guide lip notch (45) and a distal guide tip (46) being offset in a first lateral direction (P3) such that the cross runner connector is laterally displaceable in the first lateral direction (P3) in response to insertion of the cross runner connector into the opening (11) of the main runner (10) with the guide edge portion (44) positioned in the opening notch (12) of the opening (11), and the locking lip (42) having a locking protrusion (48) protruding in the first lateral direction (P3).

Abstract: A building system includes a building space defined by a structural ceiling and a flooring of a building, and a ceiling system. The ceiling system includes an air permeable suspended ceiling arranged below the structural ceiling, and a plenum space is formed between the suspended ceiling and the structural ceiling and a flooring space is formed between the flooring and the suspended ceiling. A plurality of partition wall sections is arranged in the plenum space extending between the structural ceiling and the suspended ceiling and forms a plurality of plenum modules distributed across the plenum space. Each plenum module includes equipment. The equipment of each plenum module includes a supply air device for delivery of supply air to the associated plenum module for pressurization thereof such that the supply air delivered to the plenum module is supplied to the flooring space through the air permeable suspended ceiling.