A ceiling suspension system that includes a plurality of acoustic panels that are configured to be installed or attached into openings of a grid formed by main runners and cross runners of the ceiling suspension system. The acoustic panels include a plurality of main blades that extend in the same direction as the main runners and cross blades that extend in the same direction as the cross runners. Two or more of the main blades comprise a kerf in a first lateral edge of each main blade. The kerf comprises a first slot and a second slot that form a stepped configuration.

A ceiling panel for use in a gridwork of a suspended ceiling is provided. The ceiling panel includes a layer of foam insulation. A first facing sheet is positioned on a lower major face of the layer of foam insulation and a second facing sheet is positioned on an upper major face of the layer of foam insulation. A surface covering layer is positioned on an exposed face of the first facing sheet.

The present disclosure relates generally to acoustic panels, for example, suitable for use in a ceiling to control sound. The present disclosure relates more particularly to an acoustic ceiling panel including an acoustic substrate formed of a porous material having an air flow resistivity of at least 300 kPa*s/m.sup.2. The acoustic substrate includes an upper face and a lower face with a pattern of perforations formed therein, where the pattern of perforations covers at least 6% of the area of the lower face. The acoustic ceiling panel also includes a backing layer disposed over the upper face of the acoustic substrate and a veil disposed over the lower face.

The present disclosure relates generally to acoustic panels, for example, suitable for use in a ceiling to control sound. The present disclosure relates more particularly to an acoustic ceiling panel including an acoustic substrate formed of a porous material having an air flow resistivity of at least 300 kPa*s/m.sup.2. The acoustic substrate includes an upper face and a lower face with a pattern of perforations formed therein, where the pattern of perforations covers at least 6% of the area of the lower face. The acoustic ceiling panel also includes a backing layer disposed over the upper face of the acoustic substrate and a veil disposed over the lower face.

A ceiling system, comprising at least two elongate carriers, configured to support at least one ceiling panel; at least one elongate beam; and at least two connecting brackets; wherein each elongate carrier is supported at one or more suspension locations; each elongate beam is coupled to at least two elongate carriers by a respective connecting bracket; and the connecting brackets are coupled to the elongate carriers by a push-fit connection.

A ceiling system, comprising at least two elongate carriers, configured to support at least one ceiling panel; at least one elongate beam; and at least two connecting brackets; wherein each elongate carrier is supported at one or more suspension locations; each elongate beam is coupled to at least two elongate carriers by a respective connecting bracket; and the connecting brackets are coupled to the elongate carriers by a push-fit connection.

Described herein is a coating composition suitable for application to a building panel. The coating composition comprises inorganic pigment, liquid carrier, and a humectant comprising a first ester-containing compound. The liquid carrier may be present in an amount ranging from about 10 wt. % to about 30 wt. % based on the total weight of the coating composition. Described herein are also building panels coated with the coating composition and methods of their production.

Described herein is a coating composition suitable for application to a building panel. The coating composition comprises inorganic pigment, liquid carrier, and a humectant comprising a first ester-containing compound. The liquid carrier may be present in an amount ranging from about 10 wt. % to about 30 wt. % based on the total weight of the coating composition. Described herein are also building panels coated with the coating composition and methods of their production.

An improved drop/suspended ceiling system which provides consistent spacing between continuous, parallel support rails is described. The rails attach directly to floor joists which permits locating ceiling panels as high as possible with respect to the bottom of the joists. In other embodiments, the rails may be supported by hangers, but held in parallel by spacers hidden by the ceiling panels to avoid the use of conventional suspended ceiling cross-sectional members. In some embodiments, the rails attach within or between joists and can also be used as a remodel or new option. Panels can be used with existing steel drop ceilings in conjunction with the spacer channel to achieve a continuous, parallel look with traditional steel drop ceiling rails using the spacer. Rails and tiles can serve as a direct replacement for traditional tiles or long panels can be used from wall to wall in isles or small rooms.

An improved drop/suspended ceiling system which provides consistent spacing between continuous, parallel support rails is described. The rails attach directly to floor joists which permits locating ceiling panels as high as possible with respect to the bottom of the joists. In other embodiments, the rails may be supported by hangers, but held in parallel by spacers hidden by the ceiling panels to avoid the use of conventional suspended ceiling cross-sectional members. In some embodiments, the rails attach within or between joists and can also be used as a remodel or new option. Panels can be used with existing steel drop ceilings in conjunction with the spacer channel to achieve a continuous, parallel look with traditional steel drop ceiling rails using the spacer. Rails and tiles can serve as a direct replacement for traditional tiles or long panels can be used from wall to wall in isles or small rooms.