Composite structural pillar and rafter beams with nailing strips

Claim 1

IN A WALL AND ROOF SPAN FOR A BUILDING STRUCTURE, THE COMBINATION OF (A) TWO LATERALLY-OPPOSED UPRIGHT WALL PILLARS CONNECTED BY (B) TWO ANGULARLY RELATED RAFTERS FORMING THE ROOF SPAN, (C) EACH OF SAID PILLARS AND RAFTERS BEING A BEAM-LIKE CONSTRUCTION ELEMENT COMPRISING, (A) TWO OPPOSED HEAVY GAUGE METAL MEMBERS OF C SHAPE IN CROSS SECTION AND EACH HAVING A FLAT WEB PORTION WITH RIGHT ANGULAR EDGE FLANGES TO PROVIDE A CHANNEL WITH A RESTRICTED OPENING ON THE SIDE OF THE MEMBER OPPOSITE THE WEB PORTION, THE CHANNELS BEING ADAPTED TO RECEIVE FASTENERS FOR CONNECTION OF BRACES, (B) TWO OPPOSED LIGHT GAUGE SHEET METAL CHANNEL MEMBERS OF U SHAPE IN CROSS SECTION AND EACH HAVING A FLAT WEB PORTION AND PARALLEL EDGE FLANGES, (C) THE U-SHAPED MEMBERS BEING SUBSTANTIALLY COEXTENSIVE IN LENGTH WITH SAID C-SHAPED MEMBERS AND BEING WELDED TO SAID C-SHAPED MEMBERS ALONG THE EDGE FLANGES OF THE LATTER TO FIX THEM WITH THEIR WEB PORTIONS IN SPACED RELATION AND PROVIDE AN AXIAL PASSAGEWAY THROUGH SAID BEAMLIKE ELEMENT, AND (D) NAILING STRIPS SUBSTANTIALLY FILLING EACH OF SAID U-SHAPED MEMBERS FOR THE ATTACHMENT THERETO OF INTERIOR AND EXTERIOR WALL AND ROOF COVERINGS, (D) APERTURED CONTACTING METAL PLATES WELDED TO THE ADJOINING ENDS OF SAID ELEMENTS FORMING THE TWO RAFTERS AND BOLTS IN THE APERTURES OF SAID PLATES TO FIX THE RAFTERS IN THEIR ANGULARLY RELATED POSITIONS, AND (E) MEANS FASTENING THE OUTER ENDS OF SAID TWO RAFTERS TO THE UPPER ENDS OF SAID TWO PILLARS, EACH OF SAID MEANS COMPRISING A PAIR OF APERTURED CONTACTING METAL PLATES AND BOLTS IN THE APERTURS OF THE LATTER, ONE PLATE OF EACH PAIR BEING WELDED TO THE TOP OF THE ELEMENT FORMING ONE OF SAID PILLARS AND THE OTHER PLATE BEING WELDED TO THE OUTER END OF THE ELEMENT FORMING THE ASSOCIATED RAFTER.