Abstract: A head-of-wall joint for insulating the intersection between a wall assembly and the bottom of a floor or roof construction thereabove which utilizes an insulating gasket of a unique shape and construction positioned between the ceiling track and the point of intersection thereof with respect to the upper building floor or roof structure. The configuration of the insulating gasket member includes a main section and two side sections which extend over the outwardly facing surfaces of a conventionally configured ceiling track or runner without being attached to the ceiling track side panel side surfaces. The gasket can included tabs to attach to the lowermost edges of the track side sections. The gasket can be made from acoustically insulating materials or firestopping materials, or both.

Abstract: A sealing gasket for use attached preferably to the topmost edge of gypsum board when used as construction wallboard. The gasket includes a support leg section capable of being mounted in engagement with preferably the uppermost edge of the gypsum board. The gasket includes a sealing leg extending outwardly from said leg section which includes an intumescent component to facilitate sealing between the edge of the gypsum board and the wall structure above. In one embodiment the sealing leg includes an intumescent impregnated paper material covered with a structurally enhancing layer. An adhesive layer can be included to attach the gasket to the gypsum wallboard. The sealing leg in this embodiment has an “A” or “P” profile and will extend upwardly and inwardly over the upper edge of the gypsum board at an obtuse angle with respect to the support leg for sealing thereabove in the head-of-wall area.