Roof Manual

This document will help you with the installation of your cedar shake and shingle roofs. On the left side of the page in the blue section under the heading "Supporting Documents" you will find our Care & Maintenance brochure, or click here for more information. To ensure you are reading the latest edition of the Roof Manual please contact our office. 

The pages of this manual are available in PDF format files, and in a hard copy (Imperial measure only).

Click here to download the entire roof manual - imperial version,  March 2017 edition.

For helpful information on how to select a contractor, please visit the "Choosing a Contractor" page.

To view detailed profiles of Certi-label projects click here. 


Table of Contents
Page #
00 Introduction
About This Manual, Cedar Shake & Shingle Bureau History,  Certi-labelTM Products
01 Certi-LabelTM Western Red Cedar Products
Certigrade® Western Red Cedar Shakes, Certi-label Western Cedar Shingles
02 Certi-LabelTM Products - Factory Treated
Pressure-Impregnated Treated Products, Certi-Guard® Fire-Retardant Treated Cedar Shakes & Shingles, Certi-Last® Preservative-Treated Cedar Shakes & Shingles,
03 General Design & Application Details
Sheathing, Staggered Butt Applications
04 Design & Application Details - Shakes
Certi-labelTM Shakes, Certi-labelTM Shake Application
05 Design & Application Details - Shingles
Certi-labelTM Shingles, Certi-labelTM Shingle Application
06 Mansard Roof Details
07 Low Slope Roof, Hip & Ridge Details
Low Slope Details, Certi-labelTM Hip & Ridge Details


Roof Juncture Details
Convex Juncture, Concave Juncture, Roof Transitions


Roof Juncture Details
Apex Juncture, Swept or Bell Eave, Roof Valley Flashing Details
10 Roof Valley Flashing Details
Valleys: Certi-labelTM Shingles, Valleys: Certi-labelTM Shakes
11 Roof Projection Flashing Details
12 Roof Fastener Guidelines
Nails, Staples, Location/Penetration, Pressure Impregnated Treated Shakes & Shingles
13 Ventilation Details
14 Ventilation Details
Ridge Vents, Low Slope, Steep Slope, Severe Climate Areas
15 Specialty Roof Deck Details
Wood Deck, Nails
16 Specialty Roof Deck Details
Rigid Insulation
17 Cold Roof System Details
Gable & Shed Details
18 Cold Roof System Details
Half Monitor
19 High Humidity Details
Methods of Application
20 Coverage & Exposure Tables
Shingle Coverage, Shingle Exposure, Shake Coverage, Shake Exposure
21 Cedar Care & Maintenance Overview
Longevity, Quality Manufacturing, Quality Installation, Pressure-Impregnated Treatment, Topical Treatment
22 Cedar Care & Maintenance Overview
Topical Treatment Products, Powerwashing, The Beauty of Cedar
23 Specification Guidelines
General Specification Data, Sheathing Boards, Roofing Felt Interlay, General Application Data
24 Specification Guidelines
General Application Data, Hips & Ridges, Valleys, Fasteners (Installation, Shingles, Shakes)
25 How to Read a Certi-labelTM
Label Diagram