EnglishFrenchGermanSpanish
menu
EnglishFrenchGermanSpanish

Certi-Split® Handsplit & Resawn Shakes

This high quality shake features a rough split face and sawn back. Popular on traditional, ranch, vacation homes, or non-residential structures design to blend with the natural and/or rustic surroundings.

Untreated Products

Certi-Split® Handsplit and Resawn Shakes

Premium Grade

Go to Section

  1. General Information
  2. Installation Information
  3. Warranty Information

1. General Information

Description
Lengths 18-inch and 24-inch; width 4″ minimum, thickness ½” (medium) and ¾” (heavy). Clear heartwood; 100% edge grain; no defects

Roof Exposure
7½” for 18-inch shakes; 10″ for 24-inch shakes.

Wall Exposure
Single course: 8″ for 18-inch shakes; 18″ for 24-inch shakes.

Recommended Use
For walls and roofs 4:12 pitch and steeper and where a premium quality product is needed or desired. The 100% edge grain requirement exceeds the national industry standard.

  • Class A, B & C fire ratings may be obtained by specifying Certi-Guard® pressure impregnated, fire-retardant treated Premium or Number 1 Grade shakes.
  • Certi-Last® pressure impregnated, preservative treatment is available for added longevity.
  • Contact the treatment company for treatment warranty information, accessory product requirements (including recommended fastener types) and application details for treated cedar material.
  • Historical Projects: CSSB members offer straight split/barn shake, and tapersplit products for historic accuracy. Ask your supplier for more details. Check CSSB technical manual for specific installation details.
  • Certi-label® cedar shake and shingle products manufactured by members of the Cedar Shake & Shingle Bureau are graded in accordance with UBC Standards No. 15-3 and/or CSA 0118.1.
  • This is only a product description necessary for selection of materials and grades. For a new roof construction manual and/or wall manual please contact: info@cedarbureau.com.

2. Installation Information

Installation guides

Roofing Installation Video

3. Warranty Information

Manufacturer’s Lifetime Limited Warranty

Offered by Member Manufacturers of the Cedar Shake & Shingle Bureau (“CSSB”)

Warranty Submissions

For submission requirements see: Manufacturer’s Lifetime Limited Warranty.

Fraud Alert!

Download and read the fraud alert regarding manufacturer’s lifetime limited warranty.

Read Fraud Alert

 

Certi-Split® Handsplit and Resawn Shakes

Number 1 Grade

Go to Section

  1. General Information
  2. Installation Information
  3. Warranty Information

1. General Information

Description
Lengths 18-inch, thickness ½” (medium) and ¾” (heavy) minimums; length 24-inch, thickness 3/8″, ½” (medium) and ¾” (heavy) minimums. Width 4″ minimum. Clear heartwood; 20% maximum flat grain in each bundle.

Roof Exposure
18-inch shakes – 7½” maximum; 24-inch medium and heavy shakes – 10″ maximum; 24-inch (3/8″) shakes – 7½” maximum (5″ per UBC).

Wall Exposure
Single course: 8″ for 18-inch shake; 10½” for 24-inch shake.

Double Course
14″ for 18-inch shake; 18″ for 24-inch shake.

Recommended Use
For walls and roofs on 4:12 pitch and steeper where high quality appearance and performance are desired.

2. Installation Information

Installation guides

Roofing Installation Video

3. Warranty Information

Manufacturer’s Lifetime Limited Warranty

Offered by Member Manufacturers of the Cedar Shake & Shingle Bureau (“CSSB”)

Warranty Submissions

For submission requirements see: Manufacturer’s Lifetime Limited Warranty.

Fraud Alert!

Download and read the fraud alert regarding manufacturer’s lifetime limited warranty.

Read Fraud Alert

 

Treated Products

Certi-Guard® Shakes & Shingles

Go to Section

  1. General Information
  2. Installation Information
  3. Warranty Information

1. General Information

Identification
The Certi-Guard® label identifies cedar shakes and shingles which have been pressure-impregnated with fire-retardant polymers to provide permanent fire protection.

Class B shakes and shingles are identified by their red Certi-Guard® label.

Class C shakes and shingles are identified by their blue Certi-Guard® label.

Class B and C labels must identify the treatment company, the independent testing laboratory, and the building code research number.

Class A wood roof systems can be attained with a component system. Check with the treatment company for installation details.

Material
Certi-Guard® is manufactured from Premium and Number 1 Grade Certi-Split® or Certi-Sawn® cedar shakes or Number 1 Grade Certigrade® cedar shingles.

Check with your local building official and fire official to ensure that the product meets local approval requirements. Treatment company application guidelines should be followed.  Ask the treatment company for installation instructions for Class A, B and C shake and shingle roof systems.

Test Standards: ASTM E-108, UL -790, NFPA-256, UBC Standard 15-2

INTERMITTENT-FLAME TEST
 Class
Flame Temperature
Flame ON minutes
Flame OFF minutes No. of Test Cycles
A
1400 +/- 50 F
2 2 15
 B
1400 +/- 50 F
2 2 8
C
1300 +/- 50 F
1 2 3

BURNING BRAND TEST
 Class
Brand Size
Brand Wood
No. of Brands
A
12″ by 12″ | 2¼” inches thick
Douglas Fir 2
 B
6″ by 6″ | 2¼” inches thick
Douglas Fir 2
C
1½” by 1½” |  25/32 inches thick
White Pine 20

RAIN TEST
 Class
Exposure
A, B, C
Twelve one week conditioning cycles of 96 hours of water exposure at a rate of 0.7 inches of water per hour, followed by 72 hours of drying time at 140 degrees F. This equates to 20 to 30 years of actual outdoor rain and wear.

*After the rain test and each weathering test period, the shakes and shingles are again subjected to the intermittent Flame, Burning-Brand and Flying Brand test.


SPREAD-OF-FLAME TEST
 Class
Flame Temperature
Flame Application
A
1400 +/- 50 F
10 minutes
 B
1400 +/- 50 F
10 minutes
C
1300 +/- 50 F
4 minutes

FLYING BRAND TEST
 Class
Flame Temperature
Flame Application
A
1400 +/- 50 F
10 minutes
 B
1400 +/- 50 F
10 minutes
C
1300 +/- 50 F
4 minutes

WEATHERING TEST
 Class
Exposure
Test Years
A, B, C
Actual outdoor weathering
1, 2, 3, 5, and 10

Manufacturers, inspectors, brokers, distributors, retailers, wholesalers, builders, architects, installers, and technicians have been assembling, recording, and distributing their knowledge of the wood roofing industry through the Cedar Shake & Shingle Bureau for over 89 years. This information is therefore provided as a service, and no warranty, express or implied, is given. The CSSB shall not be liable for any direct, indirect, incidental, or consequential damage in connection with the use of the material supplied on these pages.

2. Installation Information

Installation guides

Roofing Installation Video

3. Warranty Information

Manufacturer’s Lifetime Limited Warranty

Offered by Member Manufacturers of the Cedar Shake & Shingle Bureau (“CSSB”)

Warranty Submissions

For submission requirements see: Manufacturer’s Lifetime Limited Warranty.

Fraud Alert!

Download and read the fraud alert regarding manufacturer’s lifetime limited warranty.

Read Fraud Alert

 

Certi-Last® Shakes & Shingles

Go to Section

  1. General Information
  2. Installation Information
  3. Warranty Information

1. General Information

Identification
The Certi-Last® label identifies red cedar shakes and shingles which have been pressure-impregnated with wood preservatives in compliance with the American Wood Preservers Association (C34 Standard). Preservative retention, penetration, and assay sampling criteria shall be in accordance with the AWPA U107and/or CSA 0118.1 Standard.

Material
Certi-Last® products are manufactured using Certi-Split® cedar shakes, Certigrade® cedar shingles, and Certi-Sawn® cedar shakes. The product is sold under the Certi-Last® trademark when treated to the established standards.

Application
Shakes and shingles are applied according to standard specifications of the Cedar Shake & Shingle Bureau. The treatment company may have special requirements regarding flashings, fasteners, etc. Contact the treatment company for more details.

Click here for quick tips including disposal methods.

Recommended Use
Certi-Last® is recommended for use on roofs in areas having a climate index of more than 65 as identified in the USDA Forest Service Techline Durability Paper III -3.

  • Certi-label® cedar shakes and shingles are manufactured by members of the Cedar Shake & Shingle Bureau and are graded in accordance with UBC Standards No. 15-3 and 15-4 and/or CSA 0118.1.
  • Contact the treatment company for treatment warranty information, accessory product requirements (including recommended fastener types) and application details for treated cedar material.
  • This is only a product description necessary for selection of materials and grades. For a new roof construction manual and/or wall manual please contact: info@cedarbureau.com

2. Installation Information

Installation guides

Roofing Installation Video

3. Warranty Information

Manufacturer’s Lifetime Limited Warranty

Offered by Member Manufacturers of the Cedar Shake & Shingle Bureau (“CSSB”)

Warranty Submissions

For submission requirements see: Manufacturer’s Lifetime Limited Warranty.

Fraud Alert!

Download and read the fraud alert regarding manufacturer’s lifetime limited warranty.

Read Fraud Alert