O118.1-97 (R2007)

1. Scope 1.1 This Standard applies to random width shakes, shingles, and remanufactured shake and shingle products manufactured from Western Red Cedar or Yellow (or Alaska) Cedar. 1.2 This Standard specifies minimum requirements for western cedar species of shakes, shingles, and remanufactured shake and shingle products in terms of sizes, manufacturing tolerances, characteristics allowed, packaging, and identification. 1.3 The basic requirements for an appropriate conformity assessment program, including re-inspection recommendations, recommendations for installation, pressure preservative treatment, and fire-retardant treatment, are contained in the Appendices. 1.4 The values given in imperial units are the standard. For convenience, Appendices covering installation requirements also show spatial requirements in metric units within brackets. A conversion table listing approximate metric dimensions for standard shake and shingle sizes is provided in Appendix F.