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0025 Cedar Shake Nailing Details - Roofing - Wood Shingles Shakes - Image Text: Top view: Exposure Table: #1 grade shakes > roof slope > 4/12 and up > shake length 18 inches, 24 inches > 7.5 inches > 10 inches > 18 inch wide strip of roofing felt attached to sheathing (bottom edge to be located a distance equal to twice the exposure above the butt of the shingle) > exposure (see chart above) > 2x exposure > in any 3 courses no 2 joints should be in direct alignment > 3/8 inch to 5/8 inch > two fasteners per shake > 3/4 inch to 1 inch > 1-1.5 inches to 2 inches above butt line of next course > 1-1.5 inches offset (minimum) between adjacent courses |
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