Roofing & roof material products for house roofing
Cedar wood shake and cedar shingle roof material
Certigroove™ Machine Grooved Shakes

Certigrade™ Rebutted/Rejointed Shingles



Certigroove

Machine Grooved Shakes
Appearance - Machine grooved for a shake texture from Number 1 Grade Blue Label CERTIGRADE red cedar shingles, trimmed for parallel edges with butts sawn at right angles.

Finishes: Natural, primed white, primed gray or special order colors.

Lengths: 16 inch, 18 inch and 24inch.

Recommended Use - For exterior and interior walls where a premium quality product is desired.

Wall Exposure Table
Maximum Weather Exposure
Shingle Length Single Course Double Course
16" 7½" 12
18" 8½" 14
24" 11½" 16

CertigradeT Rebutted/Rejointed Shingles
Appearance - Manufactured from Number 1 Grade Blue Label and Number 2 Grade Red Label CERTIGRADE red cedar shingles, trimmed for parallel edges with butts sawn at right angles.   Available in both sawn and sanded face textures.

Finishes: Natural, primed white, primed gray or special order colors.

Lengths: 16 inch, 18 inch and 24 inch.

Number 1 Grade, Blue Label
Description - Lengths 16 inch, 18 inch, 24 inch; width 14" maximum, 4" minimum; thickness of 16 inch is 5/2" (5 butts together is 2" thick), 18 inch is 5/2¼" thick, 24 inch is 4/2" thick.  Clear heartwood: 100% edge grain; no defects.

Recommended Use - For exterior and interior walls where a premium quality product is desired.

Number 2 Grade, Red Label
Description - Lengths 16 inch, 18 inch, 24 inch; thickness of 16 inch is 5/2" (5 butts together is 2" thick), 18 inch is 5/2¼" thick, 24 inch is 4/2" thick. Width 14" maximum, 4" minimum. Face must be 10", 11" and 16" clear or better on 16 inch, 18 inch and 24 inch shingles, respectively.  Limited sapwood and flat grain are allowed.  Limited knots and defects are allowed above the clear portion.

Recommended Use - For exterior and interior walls where a good quality product is desired.

Wall Exposure Table - No.1 Grade, Blue Label*
Max. Weather Exposure
Shingle Length Single Course Double Course
16" 7½" 12
18" 8½" 14
24" 11½" 16
* Maximum weather exposure for No.2 Grade, Red Label Rebutted and Rejointed shingles should be in accordance with the manufacturer's recommendations.

  • These red cedar shakes and shingles are manufactured in accordance with standards established by the Cedar Shake & Shingle Bureau.
E-Mail us for exact specifications and descriptions.

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