Described herein is a flame-retardant building panel comprising a body having a first major surface opposite a second major surface, an inorganic coating atop the first major surface, the inorganic coating being optically transparent and flame retardant and comprising a silicate compound; and wherein the inorganic flame retardant coating is substantially transparent such that the first major surface of the body is visible through the inorganic coating.

A ceiling suspension system includes a primary profile, a secondary profile, and a coupling bracket. The bracket includes a main body through which the primary profile can extend, two coupling legs that can lie at a first side of and couple with the secondary profile, and two retaining tabs which can lie at a second side opposite side of the secondary profile and enclosing the secondary profile form-fitting together with the primary profile and the coupling legs. The coupling bracket both in a non-installed and installed state, has its retaining tabs lie in the retaining position, where at least the retaining tabs of the coupling bracket are made resilient for being movable out of their retaining position towards a passing position in which the secondary profile is movable into or out of its form-fitting enclosing during coupling of the secondary profile with the coupling legs.

A ceiling suspension system includes a primary profile, a secondary profile, and a coupling bracket. The bracket includes a main body through which the primary profile can extend, two coupling legs that can lie at a first side of and couple with the secondary profile, and two retaining tabs which can lie at a second side opposite side of the secondary profile and enclosing the secondary profile form-fitting together with the primary profile and the coupling legs. The coupling bracket both in a non-installed and installed state, has its retaining tabs lie in the retaining position, where at least the retaining tabs of the coupling bracket are made resilient for being movable out of their retaining position towards a passing position in which the secondary profile is movable into or out of its form-fitting enclosing during coupling of the secondary profile with the coupling legs.

Described herein is a barrier coating composition comprising an organic blend comprising a first component and a second component, the first component comprising latex polymer and the second component being selected from polyurethane emulsion, wax emulsion, and alkyd emulsion, wherein the first component and the second component are present in a weight ratio ranging from about 2:1 to about 20:1, and the latex polymer has a glass transition temperature of less than about 18° C.

Described herein is a barrier coating composition comprising an organic blend comprising a first component and a second component, the first component comprising latex polymer and the second component being selected from polyurethane emulsion, wax emulsion, and alkyd emulsion, wherein the first component and the second component are present in a weight ratio ranging from about 2:1 to about 20:1, and the latex polymer has a glass transition temperature of less than about 18° C.

A stiffener 50 for construction elements for providing resistance against deflection and cracking is disclosed comprising a U-shaped cross-section with a web 10 and two flanges 20a, 20b extending transversely from the web 10 and having ribs 30 rising parallel, perpendicular or diagonal from the flanges 20a, 20b. The stiffener 50 is configured to be fixed within the construction element. A drywall stud and a ceiling section provided with a plurality of stiffeners 50 of the present disclosure spaced at desired locations along their length is also disclosed. Such drywall studs and ceiling sections comprising stiffeners 50 of the present disclosure reduce deflection of drywall partition and suspended ceiling system, respectively by up to 50%.

An assembly for suspending ceiling panels, having a frame and suspension members for suspending the frame from a structure, the frame having intersection members and support members extending therebetween, each support member being for supporting a respective side of the ceiling panel, and wherein the ends of the support members are configured to engage with engageable portions provided circumferentially about each of the intersection members.

An assembly for suspending ceiling panels, having a frame and suspension members for suspending the frame from a structure, the frame having intersection members and support members extending therebetween, each support member being for supporting a respective side of the ceiling panel, and wherein the ends of the support members are configured to engage with engageable portions provided circumferentially about each of the intersection members.

The present invention is directed to flame-retardant building panels comprising a body having a first major surface opposite a second major surface; an inorganic coating atop the first major surface, the inorganic coating being optically transparent and flame retardant and comprising a blend of a borate compound and a phosphate compound, and wherein the inorganic flame retardant coating is substantially transparent such that the first major surface of the body is visible through the inorganic coating.

The present invention is directed to flame-retardant building panels comprising a body having a first major surface opposite a second major surface; an inorganic coating atop the first major surface, the inorganic coating being optically transparent and flame retardant and comprising a blend of a borate compound and a phosphate compound, and wherein the inorganic flame retardant coating is substantially transparent such that the first major surface of the body is visible through the inorganic coating.