A structure-lining apparatus comprising a plurality of transversely and longitudinally extending panels connectable to a structure and connectable edge-to-edge via complementary connector components on their longitudinally extending edges. Each panel comprises transversely extending edges generally orthogonal to their longitudinally extending edges. Each panel comprises first and second complementary connector components on first and second longitudinally extending edges thereof. The apparatus comprises at least one edge-to-edge connection between a first connector component of a first panel and a second connector component of a second panel wherein a primary male connector component of the second connector component of the second panel is extended into a primary female connector component of the first connector component of the first panel and a secondary male connector component of the first connector component of the first panel is extended into a secondary female connector component of the second connector component of the second panel.

Disclosed is a suspended ceiling system, a securing member, and process of installing a patterned suspended ceiling system. The suspended ceiling system includes a grid system having first members and second members, and at least one substrate which extends below the grid system. The at least one substrate has an exposed surface and a concealed surface, and the at least one substrate has first sides and second sides which extend between the exposed surface and the concealed surface. Securing members attach to the concealed surface proximate the first sides, and the securing members have grid engagement members which secure the at least one substrate to the grid system. The securing members cooperate with the first members and the second members of the grid system to properly position the substrate and the spacing between adjacent at least one substrates is controlled.

A system for mounting plurality of panels includes a carrier part for receiving and supporting the panels at intervals along the length, and a locking strip. The carrier part and the locking strip can be mounted to each other to couple the locking strip relative to the carrier part in a locked position with an elongate edge of the locking strip engaging with the panels.

An attachment system is provided for attaching furring strips to joists, each such joist having a bottom surface, an upper surface and a sidewall. The attachment system for each furring strip including a fastener having a shaft and a head, the fastener secured to the sidewall of the joist in a position vertically displaced from the bottom surface. At least one length of wire is provided with a mid-portion and two free ends, the mid-portion being looped around the fastener. The free ends are wrapped around the furring strip and fastened to each other to securely hold the furring strip to the floor joist.

An overhead grid assembly for a suspended ceiling system and a bracket member thereof. The overhead grid assembly may include first and second support members having first and second longitudinal axes that are arranged in an intersecting manner to form a grid. The bracket member may include a first part having a first channel and a second part having a second channel. The bracket member is arranged to maintain the first and second support members in a desirable orientation relative to each other. Thus, a portion of the first support member may nest within the first channel and a portion of the second support member may nest within the second channel. The first and second parts of the bracket assembly may be rotatable relative to one another to ensure that the bracket assembly can be coupled to the first and second support members regardless of their relative orientation.

The invention relates to a dry construction system for making partition walls (1), suspended ceilings or the like, with a support structure (2), a cladding (3) arranged on at least one side of this, and an insulation layer (4), wherein the support structure (2) comprises a plurality of carrier profiles (22), to which at least one cladding (3) is secured, and wherein the carrier profiles (22) are formed from a sheet material and exhibit in cross-section a basic section and two limb sections arranged perpendicular thereto, and comprise an embossing with regularly distributed elevations and depressions. In this situation, the centre-to-centre distance between two adjacent elevations of the embossing on one side of the sheet material is less than six times the rated sheet thickness, and the base section is connected to the adjacent limb section in each case by a curved section with an outer radius which amounts to at least three times the rated sheet thickness. The invention further relates to a carrier profile (22) for such a dry construction system and uses of such a dry construction system. In this way a generic dry construction system is further improved in respect of the sound insulation properties.

A ceiling system for a clean room, a clean room ceiling and a method for constructing a ceiling for a clean room are provided. Inverted T-shaped beams support the ceiling from a building structure. A bracket attaches to a composite ceiling panel and engages a beam joint portion that extends in an upward direction from a beam leg. The beam joint portion and the composite periphery of the composite ceiling panel define a relief for solvent welding of a panel joint lower end of a composite ceiling panel to a beam joint lower end. A spring clip may resist vertical movement of the bracket with respect to the inverted T-shaped beam.

A formulation for an acoustically transparent coating for use on an acoustical substrate comprising a water dispersible binder and relatively large filler particles, and characterized by a high pigment to volume concentration, high viscosity, high shear thinning, and fast drying to enable the formulation to be sprayed in droplets that retain their identity when in mutual contact and in a dry coating can be efficiently sanded flat.

A structure-lining apparatus comprising a plurality of transversely and longitudinally extending panels connectable to a structure and connectable edge-to-edge via complementary connector components on their longitudinally extending edges. Each panel comprises transversely extending edges generally orthogonal to their longitudinally extending edges. Each panel comprises first and second complementary connector components on first and second longitudinally extending edges thereof. The apparatus comprises at least one edge-to-edge connection between a first connector component of a first panel and a second connector component of a second panel wherein a primary male connector component of the second connector component of the second panel is extended into a primary female connector component of the first connector component of the first panel and a secondary male connector component of the first connector component of the first panel is extended into a secondary female connector component of the second connector component of the second panel.

A composite structure for improving the acoustical properties of a low NRC membrane including a sound absorbing layer and a porous, scrim covered, perforated drywall layer.