Installation Guide

When Only the Best Will Do.
Specify SBC!
Installation Guide
Installed properly, our shingles can last up to 50 years.
The following are a few recommendations to help ensure their lasting beauty.
Exposure: To prevent buckling, use a 5”
(12.7 cm) maximum exposure.
Fasteners: Rust-resistant (galvanized, aluminum or stainless) nails or staples,
1 1/4” to 1 1/2”
(3.2 to 3.8 cm) long. Fasteners must penetrate at least 1/2” (1.3 cm) into the underlayment. For staples, use 7/16” (1.1 cm) minimum crown.
Ventilation
It is important to ensure adequate circulation of air underneath shingles in order to enhance their durability, reduce moisture, and save energy:
• Installhorizontalwoodenlaths(1”x3”or1”x4”
(2.5 x 7.5 cm or 2.5 x 10.2 cm)), setting them apart by a distance equal to the exposure
(centre to centre). Nail shingles directly to them. You may wish to consider using Home Slicker
TM
(on walls) or Cedar Breather
TM
(on roofs).
General Installation Instructions
1
Always work from the bottom to the top.
2
To calculate the number of courses to be installed:
- Measure the surface area to be covered and divide it by the desired exposure.
- Adjust the exposure to produce even courses.
- Leave at least 4”
(10.2 cm) for the last course at the top.
3
Draw a line or use a board to align shingles horizontally.
4
For the first row (wall, roof), always lay a double course of shingles and offset
them by at least 1 1/2”
(3.8 cm) so that joints do not line up. The bottom course
should extend at least 1”
(2.5 cm) from the top of the foundation or eaves.
5
Use 2 fasteners per shingle at about 3/4”
(1.9 cm) from each edge,
and at 1”
(2.5 cm) above the butt-line of the overlapping shingle. If shingles
are wider than 8”
(20.3 cm), use 2 additional fasteners driven 1” (2.5 cm) apart
near the center of the shingles.
6
Leave a gap of approximately 1/8”
to 1/4” (0.3 to 0.6 cm)
between neighboring shingles to allow for expansion due to moisture.
7
Joints of successive courses must always be offset by at least
1 1/2”
(3.8 cm) to prevent water build-up. Treat shingle imperfections the same way.
8
Never allow joints from any 3 consecutive courses to line up.
Angles, Corners, Openings, Edges
Flashing, which comes in various materials, sizes and shapes, is required for all of the above features. It is important to ensure that local building
codes are respected. Depending on the risks of seepage, flashing generally extends approximately 4” to 8”
(10.2 to 20.3 cm) on either side. In addition
to concealing structural cutting imperfections that may occur, appropriate, properly installed flashing is instrumental in preventing rotting,
water and insect infiltration. When installing flashing, care must be taken to not drive nails near the center, especially in the case of roofs.
It is also recommended that joints in infiltration-prone areas be caulked with silicone.
Wall Corners – two possible methods
• Useshingles,byalternatingthecoursesonbothwalls(weavecorners),or
• Useboardsthatcompletelycoverupthecorner.
Existing Construction – two possible methods
• Removeexistingsidingorroongmaterialandproceedinthesamewayyouwouldwithanewconstruction,or
• Installshinglesdirectlyontopoftheoriginalcoveringandensurethatnailscanbesolidlydrivenintothesurfacebelow.
Hips and Ridges – two possible methods
• Choosesame-widthshingles,specically,4”to5”
(10.2 to 12.7 cm). Alternately overlap all shingles on both sides.
The first row must be a double course. Using two nails (approx. 2”
(5.1 cm) long), install hip and ridge caps; or
• Useprefabricatedhipandridgeunits.Theirmiteredjointsandconcealednails
can save considerably on installation time.
This guide provides only general guidelines for choosing and installing the right cedar shingle.
Although its content is accurate, it does not cover all situations. Moreover, since building codes tend
to differ from one area to the next, it is always best to consult an expert prior to proceeding.
This being the case, SBC shall not be held liable for any damage or prejudice resulting from the use
of its products or of any information found in this guide.
Exposure
Wooden
Laths
6
4
8
7
5
7
16” (40.6 cm)
Shingles
Eastern White Cedar Shingles / Installation Guide
At SBC, we firmly believe in the importance of
customer satisfaction. And one way of ensuring it
is to help you choose and install the shingles that
best meet your needs so that you may fully enjoy
SBC shingles and the natural beauty of wood!
Calculating the Quantity Required
Area Covered by 1 Square (4 bundles)
Common Exposures Area Covered
4”
(10.2 cm) 80 sq. ft. (7.4 m
2
)
5” (12.7 cm) 100 sq. ft. (9.3 m
2
) standard
6”
(15.2 cm) 120 sq. ft. (11.2 m
2
)
754, 8
e
Rue, Saint-Prosper
(Québec) G0M 1Y0 Canada
Telephone: [phone]
Fax: [phone]
www.sbccedar.com
[e-mail]
M-4056-0611 Printed in Canada
When Only the Best Will Do.
Specify SBC!
www.sbccedar.com
Eastern White Cedar Shingles
Specifications
and
Installation