Cedar Shake & Shingle Bureau P.O. Box 1178 Sumas, WA 98295 604-820-7700; Fax: 604-820-0266 www.cedarbureau.org Trade association for manufacturers, distributors & installers of Certi-label cedar shakes & shingles for roofing & siding: installation instructions; AIA seminars; fire-retardant & preservative-treated products. Click here for free product literature |