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Nails
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Each Certi-label™ Western Cedar shingle or shake should be applied with two corrosion-resistant fasteners, such as stainless steel (type 304 or 316), hot-dipped zinc coated, or aluminum nails or other fastener as accepted by your local building official. Minimum nail lengths are shown in the fastener chart below. In double course applications, the exposed Certi-label™ Western Cedar shingle or shake shall be face-nailed with two hot-dipped galvanized or stainless steel casing nails, driven 2" above the butt line, and 3/4" from each edge. Certi-label™ Western Cedar shingles wider than 10" require 2 additional nails and these two nails are driven approximately 1" apart near the center of the shingle.
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Staples
Staples should be aluminum or stainless steel (type 304 or 316) 16 gauge or other fastener as accepted by your local building official. Two staples should be driven per Certi-label™ Western Cedar shingle or shake with the staple crowns 7/16" minimum horizontal, maximum 3/4" horizontal, to the Certilabel Western Cedar shingle or shake butt. Staples are driven in the same location as nails relative to the sides and overlapping butt line. Certi-label™ Western Cedar shingles wider than 10" require 2 additional staples and these two staples are driven approximately 1" apart near the center of the shingle.
Fasteners should be long enough to penetrate into the sheathing at least 3/4" or all the way through and driven flush with the surface of the Certi-label™ Western Cedar shingle or shake. In all applications, staples shall be concealed by the course above. Fasteners cannot be electrogalvanized as they will cause staining. Nails are preferred, for aesthetic reasons, in sidewall applications using exposed fasteners.
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