Installation Guide

SIDEWALL FASTENER GUIDELINES
YES
Correct - flush
with surface
NO
Underdriven
NO
Overdriven
5
Figure 4:
Nail Driving Detail
Figure 5:
Course Alignment
TM
Each Certi-label Western Cedar shingle or shake should be applied with
two fasteners. Nails must be stainless steel Type 316 in locations within
fifteen (15) miles of salt water (ref. Stainless Steel Industry of North America-
Washington DC, www.ssina.com). For locations outside the salt water zone -
nails must be stainless steel Type 304, Type 316, or hot-dipped zinc coated
galvanized conforming to a coating weight of ASTM A 153 Class D (1.0
oz/ft2). Stainless steel nails, although more expensive, offer the highest
degree of corrosion resistance. Contact the nail manufacturer for further
information to ensure the nails used comply with listed requirements and are
correct for your application. Minimum nail lengths are shown in the fastener
TM
chart below. In double course applications, the exposed Certi-label Western
Cedar shingle or shake shall be face-nailed with two nails (as above), driven
2" above the butt line, and 3/4" from each edge.
TM
Certi-label Western Cedar shingles wider than 10" require 2 additional nails
and these two nails are driven approximately 1" apart near the center of the
shingle.
If you choose to use staples they must be stainless steel Type 316 in
locations within fifteen (15) miles of salt water. For locations outside of the
salt water zone - stainless steel staples Type 304 or Type 316 must be used.
TM
Two staples should be driven per Certi-label Western Cedar shingle or
shake with the staple crowns 7/16" minimum horizontal, maximum 3/4"
TM
horizontal, to the Certi-label Western Cedar shingle or shake butt. Staples
are driven in the same location as nails relative to the sides and overlapping
TM
butt line. Certi-label Western Cedar shingles wider than 10" require 2
additional staples and these two staples are driven approximately 1" apart
near the center of the shingle.
Fasteners should be long enough to penetrate into the sheathing at least 3/4"
or all the way through and driven flush with the surface of the
TM
Certi-label Western Cedar shingle or shake. In all applications, staples shall
be concealed by the course above.
DO NOT USE ELECTRO-GALVANIZED (EG) FASTENERS. Ensure the
fasteners used comply with listed requirements. Nails are preferred, for
aesthetic reasons, in sidewall application using exposed fasteners.
Nails
Staples
Important Notes:
Pressure Impregnated Treated
Shakes and Shingles
Underdriving or overdriving any
fastener will affect the integrity
of the Certi-label Western
Cedar sidewall system.
Fasteners used with fire-retardant
®
(Certi-Guard ) or preservative
®
treated (Certi-Last ) Western
Cedar shakes or shingles must be
stainless steel Type 316. For
specifics on installation, accessory
building materials (flashing, etc.)
finishes and maintenance please
contact the treatment company
directly:
/treaters.asp
The information on this page is
not meant for sidewall panel
applications. Please contact the
manufacturer for specific panel
details.
The information above is not
intended to supersede local
building codes.
www.cedarbureau.org/purchasing
Product Type Nail Type & Minimum Length
Certigrade, R&R and
Sanded Shingles Type (in)
16" and 18" Shingles 3d Box 1 1/4
24" Shingles 4d Box 1 1/2
Certigroove Shingles Type (in)
16" and 18" Shingles 3d Box 1 1/4
24" Shingles 4d Box 1 1/2
Certi-Split & Certi-Sawn Shakes Type (in)
18" Straight-Split Shakes 5d Box 1 3/4
18" and 24" Handsplit Shakes 6d Box 2
24" Tapersplit Shakes 5d Box 1 3/4
18" and 24" Tapersawn Shakes 6d Box 2
Single Course Sidewall Fasteners
Product Type Nail Type & Minimum Length
Certigrade, R&R and
Sanded Shingles Type (in)
16", 18" and 24" Shingles 5d Box 1 3/4
or same size casing nails
Certigroove Shingles Type (in)
16", 18" and 24" Shingles 5d Box 1 3/4
Certi-Split & Certi-Sawn Shakes Type (in)
18" Straight-Split Shakes 7d Box 2 1/4
or 8d 2 1/2
18" and 24" Handsplit Shakes 7d Box 2 1/4
or 8d 2 1/2
24" Tapersplit Shakes 7d Box 2 1/4
or 8d 2 1/2
18" and 24" Tapersawn Shakes 7d Box 2 1/4
or 8d 2 1/2
Double Course Sidewall Fasteners
Wide Shingle Fastener Detail
1
2
3 4
Centerline of heart
Knot or
similar
defect
1 1/2"
**Note: some nail
manufacturers offer nails
specifically for wood
shake or shingle sidewall
application. Contact the
nail manufacturer for
further information to
ensure the fasteners used
comply with listed
requirements and are
correct for your
application.