About This Manual

The guidance contained in this manual is intended for use in new construction, but also serves well for roof replacement. The information in this manual is not intended to supercede local building codes.

The pages of this Manual are available in HTML web pages, in Adobe PDF format files, and in a hard copy. If you would like to purchase a hard copy, please contact our office by phone (604) 820-7700 or by e-mail

The HTML pages vary slightly from the printed version in order to assist the viewer in navigation, but the technical content is identical to the printed edition of the New Roof Construction Manual, June 2011 released August 29, 2011.

Most images in the HTML pages are "thumbnail" size in order to ensure that these pages are a reasonable size for downloading.

The Adobe PDF files are derived directly from the printed edition of the Manual, and will take a longer time to download than the HTML pages. If your computer uses a slow modem, or if the web is experiencing heavy traffic, download times may be longer than expected.

To view or print the PDF version of the New Roof Manual, you will need Adobe Acrobat Reader software installed on your computer. If you need an Adobe Acrobat Reader to view PDF format files, you can download the latest version for free from

If you have additional questions on cedar shake and shingle installation, check our Frequently Asked Questions page, and follow the links. We will be expanding these links in the future.

If you still have questions, or have comments or suggestions regarding the technical information on our web site, please send an e-mail to This manual is intended for use with Western Red Cedar and Alaskan Yellow Cedar shake and shingle application only. Western Red Cedar and Yellow Cedar products manufactured by CSSB members are labeled with the "Certi" brand name. The species is indicated by either "Yellow" or "Red" Cedar at the top of the label. For ease of reference this manual refers to "Certi-labelTM Western Red Cedar" and the term is understood to include both Western Red Cedar and Alaskan Yellow Cedar products manufactured by CSSB members. Material for this Manual has been compiled from various authoritative sources, and many of the construction methods shown herein have been developed by the shake and shingle specialists in both the United States and Canada. The design and application details and methods of construction reflect current good building practice. Other options are possible but ensure that you check with your local code jurisdiction for approval. The information in this manual is not intended to supercede local building codes.

Cedar Shake & Shingle Bureau History

On June 9, 1915, at a meeting of the Trustees of the West Coast Lumber Manufacturers Association, it was agreed to establish a branch of the association to serve those members who manufactured shingles. Our influence grew, and as we survived both the Great Depression and World War II, manufacturers continued their quality commitment. In 1963 the organization merged with the Handsplit Shake Bureau to become the Red Cedar Shingle & Handsplit Shake Bureau. Manufacturers' product lines continued to broaden and, in 1988, the members changed the organization's name to the Cedar Shake & Shingle Bureau. In the late 1980s, mill quality control inspections were subcontracted to independent, third party quality control agencies.

Each year the Cedar Shake & Shingle Bureau's staff answer thousands of technical questions and product selection queries. Our proud history, quality reputation and dedicated members provide excellent Certi-labelTM cedar shake and shingle roofing and siding products.

Certi-labelTM Products

Cedar shakes and shingles manufactured by members of the Cedar Shake & Shingle Bureau ("CSSB") are the only products labeled with the "Certi" brand name.
Certi-labelTM cedar shakes and shingles are made by experienced craftsmen who take pride in their trade and the quality of their product. Despite their varying sizes and sometimes remote locations, member mills are bound together by a rigid quality code. Unannounced independent inspections conducted by accredited third party agencies ensure that product quality is maintained. Products are inspected to conform with various local, national and international codes and standards (contact the CSSB for specific details).

Each bundle of product has the mill's distinctive Certi-labelTM tucked under the bundle strap. Asking for "the blue label" or "number one blue label" is not specific enough: CSSB members' products are the only ones with the Certi brand name on the label.

Please Note: ONLY experienced professional who follow proper safety and workmanship practices should implement the information contained herein.

Note: This manual replaces all previous versions of the "Cedar Shake and Shingle Bureau Design and Application Manual for New Roof Construction."

Product Warranty

The CSSB administers a product warranty for Certi-labelTM product applications performed by an Approved Installer. Warrantied Certi-labelTM products include ONLY Premium Grade and Number 1 Grade materials.