A three-inch thick wood top plate fastens to the roof truss purlin with number 14 by two-inch wood screws spaced at twelve inches on center staggered at each angle. Sub-purlins space at twenty-four inches on center across the roof framing. Two rows of continuous edge spacing include four lines where staggered and six lines where three lines of nailing is required.
3x TOP PL W/ #14x2" WOOD SCREWS @ 12"OC STAGGERED AT EACH ANGLE SUB-PURLIN @ 24"OC ROOF TRUSS PURLIN (2) ROWS AT CONT EDGE SPACING (4 LINES WHERE STAGGERED, 6 LINES WHERE 3 LINES OF NAILING IS REQD) NAILER PLAN VIEW 12" 12" 24"
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