Certigrade® Shingles

This type of smooth sawn architecturally uniform cedar shingle is preferred for its natural and tailored appearance and is used on traditional and modern residential and non-residential structures.  For use on roofs and sidewalls.


Certigrade Red Cedar Shingles

Number 1 Grade, Blue Label®

Description: Lengths 16-inch (Fivex), 18-inch (Perfection), 24-inch (Royal); width 4" minimum, on 24-inch and 3" on 16-inch and 18-inch; thickness of 16-inch is 5/2" (5 butts together measures 2" thick), 18-inch is 5/2, ¼" thick, 24-inch is 4/2" thick. Clear heartwood; 100% edge grain; no defects.

Recommended Use: For walls and roofs on 3:12 pitch and steeper 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", 18-inch is 5/2 ¼", 24-inch is a 4/2"; width 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 walls and roofs on 3:12 pitch and steeper where a good quality product is desired.

Number 3 Grade, Black Label

Description: Lengths 16-inch, 18-inch, 24-inch; thickness of 16-inch is 5/2", 18-inch is 5/2 ¼", 24-inch is a 4/2"; width is 3" minimum, 2 ½" minimum on 16-inch. Face must be 6" clear on 16-inch and 18-inch, 10" clear on 24-inch. Unlimited sapwood and flat grain allowed. Limited knots and defects above clear portion.

Recommended Use: For walls and roofs on 3:12 pitch and steeper where an economy product is acceptable.

Undercoursing Grade

Description: Lengths 16-inch, 18-inch, thickness 5/2" and 5/2 ¼" respectively; width 2 ½" minimum. Unlimited defects, flat grain and sapwood.

Recommended Use: A utility grade for undercoursing of double coursed sidewalls only. Not a roofing material and not to be used as a starter course for roofs.

Roof Exposure Tables

PITCH
Maximum exposure recommended for roofs
Length
No. 1 Blue Label No 2. Red Label No. 3 Black Label
 16" 18" 24"  16" 18" 24"  16" 18" 24"
3/12 to 4/12  3¾" 4½" 5¾"  3½" 4" 5½"  3" 3½" 5"
4/12 and steeper  5" 5½" 7½"  4" 4½" 6½"  3½" 4" 5½"