Abstract: A method for making a unitized, ready-to-install, mobile home ceiling structure is disclosed. The method comprises the steps of arranging a plurality of rectangular panels on a tunnel jig. A roof frame structure is then positioned and fastened on the back face surfaces of the panels by means of fasteners and adhesive along the bottom chords of intermediate roof frame truss members. The method additionally includes the step of fastening roof frame perimeter side edge rails and outer truss members to the panel arrangement perimeter by means of fasteners driven upwardly through the front face surface of the panels to extend through the panels and penetrate the side edges rails and outer truss members. The method includes the step of transporting the mobile home ceiling structure from the tunnel jig in ready-to-install condition wherein the setup time of the adhesive material does not restrict moving the unit.

Abstract: A mobile home ceiling unit and a method for manufacturing said unit are disclosed. The mobile home ceiling unit comprises an arranged plurality of panels fastened to a roof frame. The roof frame has an outer truss member at opposite ends and a multiplicity of intermediate truss members therebetween. Intermediate truss members being rigidly affixed to the panels by means of back fasteners and adhesive material. The roof frame additionally provides perimeter side edge rails. The side edge rails and outer truss members are fastened to the panels by means of front face fasteners along the perimeter of the front face surface of the panel arrangement. The front face surface perimeter of the ceiling unit is adapted to supportively coact along support wall means. The ceiling unit provides a concealed back fastened ceiling structure having unitized construction. A method for making said unitized, ready-to-install, mobile home ceiling structure is also disclosed.

Abstract: Mechanically fastened appended tabs invisibly secure common edge-abutting wallboard panels to common wood or metal framing members. The fastener appendants are spaced apart tabs extending from the back of and exposed beyond the vertical edges of the wallboard panels so as to be conveniently screw fastened. When screw fastened to common wall framing members, the appended tabs secure the wallboard panels slightly off the framing member front surface to permit offset appendant tabs of abutting wallboard panels to slide between the fastened wallboard panels and the framing members and be engaged by the fastened wallboard panels in a tongue and groove relationship.

Abstract: A prefabricated building unit has a framed inner stud wall to which is joined an intermediate wall of insulation board and an exterior wall of concrete, the concrete being poured on the intermediate wall and over angled, protruding nails that fasten the intermediate wall to the stud wall. A plurality of the building units are combined to complete the walls of a structure, the method of joining being to weld together reinforcing bars extending from the concrete portion of each unit and then to pour a pilaster over the joined reinforcing bar. The exterior of the concrete wall is finished during prefabrication with exposed aggregate and exterior varnish.

Abstract: Composite panels, each having a rigid board facing, made from gypsum, concrete, wood, or fibrous material, backed by a layer of foamed plastic insulating material whose reverse face is protected by a highly reflective, flame-retardant, moisture-vapor-proof material applied thereto, are held together edge-face to edge-face in building construction by special retaining clips which secure the panels to supporting structure, such as exterior, load-bearing walls, roof, or ceiling, and also serve to guide installation of the panels so that flush registry is assured without time consuming care in installing an additional panel relative to one already in place. The clip has flanges extending perpendicularly from lateral edges of a web strip whose width depends upon the use intended and the panel thickness. A flange along one edge of the web strip is adapted to be secured directly to the supporting structure.

Abstract: A system for forming a building partition wherein wall panels are secured to opposite sides of vertically extending studs. A metal base member capable of rapid attachment to the edge of a wall panel which base member defines a clip supporting slot. A clip slidably engageable in the slot at divers horizontal positions therealong so that the panels can be attached to studs notwithstanding minor differences in widths of the panels. The clip and the stud cooperate so that the panels can be removed without destruction of the panel, if such becomes necessary during relocation of a partition.

Abstract: Two adjacent sheets of wallboard are held firmly against a stud, until the adhesive between the wallboard and the stud becomes firm, by a tie wire which is removably held by two spaced apart staples in the stud, and by an elongate rigid block which is held against the face of the wallboards by tie wire.

Abstract: This invention provides a fastener which includes a shank having a head on one end and a conical portion on the other, the apex of the conical portion constituting a piercing point for the fastener. The shank includes a smooth cylindrical portion adjacent the conical portion and a threaded portion adjacent the head. The axial section of the fastener exhibits an abrupt, angled transition between the conical portion and the smooth cylindrical portion. The thread diameter of the threads on the threaded portion is greater than the diameter of the smooth cylindrical portion, which is the same as the base diameter of the conical portion. The thread angle of the threads is between about 35.degree. and about 55.degree., and the included cone angle of the conical portion is between about 23.degree. and about 35.degree..