Roof framing consists of purlins spaced at eight feet on center and Douglas Fir rafters spaced at twenty-four inches on center, with dimensions varying by warehouse or office area. Structural 1 wood sheathing is applied parallel to the rafters with staggered joints, and thicknesses are governed by the nailing diagram. Edge nailing, intermediate nailing, and continuous edge nailing secure the sheathing panels. Detail references direct the builder to alternate conditions where four-inch nominal rafters occur.
PANELIZED ROOF DETAIL 4 NOTE: CAUTION : IF THIS SHEET IS NOT A 30" X 42" IT IS A REDUCED PRINT
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