Truss

Abstract

A truss for a roof having an attic space or the like, the truss including: a substantially vertical web adapted to constitute a stud for supporting the attic wall; a substantially horizontal web adapted to constitute a support for the attic ceiling or ceiling battens, and a bottom chord adapted to constitute a bearer or joist for the attic floor.

What is claimed is:  
     
         1 . A truss for a roof having an attic space or the like, the truss including: 
 a substantially vertical web adapted to constitute a stud for supporting the attic wall;    a substantially horizontal web adapted to constitute a support for the attic ceiling or ceiling battens, and    a bottom chord adapted to constitute a bearer or joist for the attic floor, wherein the roof truss members are metal.    
     
     
         2 . A truss as claimed in  claim 1 , wherein the truss includes a pair of opposed vertical webs.  
     
     
         3 . A truss as claimed in  claim 2 , wherein the bottom chord is a parallel chord truss-joist.  
     
     
         4 . A truss as claimed in  claim 3 , wherein the roof truss is substantially prefabricated.  
     
     
         5 . A truss as claimed in  claim 1 , wherein the roof truss members are made from reversibly nestable substantially Z shaped chord members and substantially tubular bracing members, the tubular bracing members being crimped or substantially flattened at their ends.  
     
     
         6 . A truss as claimed in  claim 5 , wherein the reversibly nestable substantially Z shaped chord members have in section a web having a linear portion and a divergent portion which extends to one side of the linear portion, a minor flange extending from the linear portion to the one side of the web, and a major flange extending from the divergent portion back to the other side of the web; wherein if one chord is inverted relative to another with the longitudinal axes of the chords inclined and intersecting with respect to each other, the chords nest such that the respective webs abut and such that the respective minor flanges abut the respective major flanges.  
     
     
         7 . A truss for a building having a room space or the like beneath a roof, the truss including: 
 a substantially vertical web adapted to constitute a stud for supporting the room wall;    a substantially horizontal web adapted to constitute a support for the room ceiling or ceiling battens;    a bottom chord adapted to constitute a bearer or joist for the room floor, and    a top chord adapted to constitute a support for roofing battens, wherein the roof truss members are metal.    
     
     
         8 . A method of framing a roof having an attic space or the like, the method including: 
 prefabricating a plurality of trusses having a substantially vertical web adapted to constitute a stud for supporting the attic wall, a substantially horizontal web adapted to constitute a support for the attic ceiling or ceiling battens, and a bottom chord adapted to constitute a bearer or joist for the attic floor, wherein the roof truss members are metal.    
     
     
         9 . A method of framing a building having a room space or the like beneath a roof, the method including: 
 prefabricating a plurality of trusses having a substantially vertical web adapted to constitute a stud for supporting the attic wall, a substantially horizontal web adapted to constitute a support for the attic ceiling or ceiling battens, a bottom chord adapted to constitute a bearer or joist for the attic floor and a top chord adapted to constitute a support for roofing battens, wherein the roof truss members are metal.