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ministries
  • Anglo American Cedar Products Ltd.
  • The Clarke Group
  • Fraser Cedar Products
  • Meeker Errington Cedar Products Ltd.
  • Serpentine Cedar Ltd.
  • The Teal-Jones Group
  • The Waldon Group
  • Watkins Sawmills Ltd.

www.angloamerican.com

www.clarkegroup.com

www.frasercedarproducts.com

www.meekerlumber.com

www.serpentinecedarltd.com

www.tealcedar.com

www.waldon.com

www.watkinsawmills.com

Cedar

Cedar is perhaps the oldest roofing material in continuous use and is still a viable option for roof replacement today. The interwoven felt used in cedar shake installation creates a durable roof system that is designed to “recycle” moisture beneath the material back out onto the roof surface. Cedar is sold in numerous varieties, both raw and treated, and has a realistic life expectancy of 15 to 35 years depending on the system chosen. Available options are:

 

*Treated cedar can be installed over solid plywood decking; however, the life expectancy will be shortened by 15% to 20%.

Below are links to several manufacturers’ sites. Remember that manufacturers’ web sites are designed to promote their products and will generally provide you with only positive product information.

You can count on Seattle Roof Advisor to provide unbiased advice.

Pros

Cons

About Us

 

The Process

 

 

ROOFING PRODUCTS

 

Pitched Roofs

 

► Cedar

 

► Composition

 

► Metal

 

► Slate / Tile

 

► Synthetic

 

Low-Pitch / Flat Roofs

 

 

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Cedar Style

Length x

Butt Thickness

Width

Exposure

Underlayment
over spaced sheathing

Average Life
Expectancy
(Years)

Medium Shakes, Raw

24” x 1/2”

Various

9-1/2” - 10-1/2”

30# interwoven shake liner

15 - 17

Medium Shakes, Treated*

Same as raw with CCA pressure treatment

23 - 25

Heavy Shakes, Raw

24” x 3/4”

Various

Same as medium shakes

20 - 22

Heavy Shakes, Treated*

Same as raw with CCA pressure treatment

33 - 35

Taper-Sawn, Raw

24” x 5/8”

Various

10”

30# interwoven shake liner

12 - 15

Taper-Sawn, Treated*

Same as raw with CCA pressure treatment

18 - 20

Wood Shingles, Raw

18” x 1/4”

Various

5”

None

12 - 15

Wood Shingles, Treated*

Same as raw with CCA pressure treatment

18 - 20