Hip & ridge details for wood shake & shingle roofs:

This article discusses best roofing practices for hip and ridge installations using wood roof shingles and shakes. This article series discusses best practices in the selection and installation of residential roofing.

Our page top photo shows hip details on a new but questionable (poor shingle offset) wood shingle roof.

Hip and Ridge Specification Details for Wood Shingle / Shake Roofs

The traditional treatment at hips and ridges is a labor intensive “woven” cap, consisting of alternating sets of two beveled shingles. Many installers now use factory assembled cap pieces that speed up the process.

Wood Shingle/Shake Roof Hips

1. Lap the underlayment over the hip before installing the shingles.
2. Then install a strip of roofing felt or metal flashing up the hip on top of the shingles before nailing the caps in place.
3. Use nails or staples long enough to penetrate the sheathing by 3/4 inch.

Ridge Details for Wood Shingle / Shake Roofs

1. For a vented ridge, use a plastic, matrix-type ridge vent.
2. Cover the ridge vent with a strip of roofing felt and install factory-assembled ridge cap pieces.
3. To prevent splitting of ridge-cap shingles, it is best to install them with a pneumatic nailer or stapler.

- - Adapted with permission from Best Practices Guide to Residential Construction (Steve Bliss, J Wiley & Sons) .

Wood Shingle & Shake Hip & Ridge Details & Resources

Above: CSSB detail on wood shingle or shake ridge or hip instllation provided by cedarbureau.org and described in detail in the New Roof Manual cited below.

Excerpting from CSSB's manual (cited below), p. 7

Intersecting roof surfaces at hips and ridges should be capped to ensure a weather-tight joint. Site-made or factory-assembled hip and ridge units may be used, but both types must have alternate overlaps and concealed nailing (Figure 8).

When ridge cap and field product are the same length and grade, the weather exposure of the ridge cap should be the same exposure as the field product of the roof.

Nails must be longer than those used on the field of the roof and of sufficient length to penetrate 3/4" into or completely through the sheathing.

Position fasteners approximately 2” above exposure line. Install a strip of felt, eave protection material or metal over hip or ridge under the ridge or hip cap. If longer or shorter ridge cap is used, adjust exposure accordingly.

• CSSB NEW [WOOD SHINGLE or SHAKE] ROOF CONSTRUCTION MANUAL [PDF] Certified Cedar Shingle Shake Bureau,
  
  U.S Address Cedar Shake and Shingle Bureau P.O. Box 1178 Sumas, WA 98295- 1178
  
  Canadian Address Cedar Shake and Shingle Bureau #2 – 7101 Horne Street Mission, BC V2V 7A2
  
  Phone: (604) 820-7700 Fax: (604) 820 – 0266 Email: info@cedarbureau.com
  
  The CSSB is a trade association of members who are involved in the cedar shake and shingle industry. Website: http://www.cedarbureau.org/ information about Certi-Label® Shakes and Shingles, retrieved 2019/08/30, original source: http://www.cedarbureau.org/manuals/imperial/2016/RMI/CSSB-roof-manual-017-March2.pdf
  Website Excerpt:
  
  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-label® Western 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

Above: Waldun Certi-ridge™ Pre-formed Western Red Cedar Hip & Ridge Caps provided in the U.K. by Silva Timber Co. cited just below. [Click to enlarge any image]

• Silva Timber Co., Cheshire (North):Cheshire Unit 4 Albright Road Widnes Cheshire WA8 8FY Tel: 0151 495 3111 Email: enquiries@silvatimber.co.uk
  or
  London (South): West London Unit 7 Skyport Trade Park Skyport Drive Harmondsworth West London UB7 0LB Tel: 0208 150 8055 enquiries@silvatimber.co.uk Website: https://www.silvatimber.co.uk
  
  Silva Timber Company is a U.K. supplier of wood shingles and shakes. The company's product line includes pre-formed wood shingle ridge and hip asseblies shown just above.
  Website excerpt:
  
  Certi-Ridge™ hip & ridge units are pre-manufactured caps for hips and ridges made from number one grade cedar shingles. Their use makes considerable savings in construction time. Each unit is fastened together by 2 staples which allow sufficient flexibility to accommodate a range of pitches.
  
  Cappings should be laid with alternate bevels and concealed nailing.
  
  Weather exposures should be at the same gauge as the field of the roof. For additional weatherproofing install a strip of Type IF roofing felt under the capping.

...

Continue reading at WOOD ROOF LIFE EXPECTANCY or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

Or see these

Recommended Articles

• WOOD SHAKE & SHINGLE ROOFING - home
• WOOD ROOF COATINGS & FIRE RATINGS
• WOOD ROOF FLASHING DETAILS
• WOOD ROOF HIP & RIDGE DETAILS
• WOOD ROOF INSPECTION GUIDE
• WOOD ROOF INSTALLATION SPECS
• WOOD ROOF LIFE EXPECTANCY
• WOOD ROOF MAINTENANCE
• WOOD ROOF MOSS & LICHENS
• WOOD ROOF SHAKES INSTALLATION
• WOOD ROOF SHEATHING, UNDERLAYMENT
• WOOD ROOF SHINGLE PROPERTIES
• WOOD ROOF WEAR / INSTALLATION DEFECTS
• WOOD SHINGLES, RE-ROOFING WITH

Suggested citation for this web page

WOOD ROOF HIP & RIDGE DETAILS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

Or see this

INDEX to RELATED ARTICLES: ARTICLE INDEX to BUILDING ROOFING

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Citations & References

In addition to any citations in the article above, a full list is available on request.

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