Installation Guide

Please Note: ONLY experienced
professionals who follow proper safety
and workmanship practices should
implement the information contained
herein.
Cedar shakes and shingles have been used
for hundreds of years. They have proven
their longevity in actual weather conditions,
in all types of climates. Cedar shakes and
shingles contain oils that make them
naturally decay resistant. Their insulative
qualities, aesthetic appeal, and wind &
impact resistance make Certi-label cedar
shakes and shingles the natural choice for
your roofing and siding material.
Not all cedar products are alike. Purchasing
cedar products with the "Certi" brand name
on the bundle label guarantees you that the
mill undergoes inspections by an
independent third party inspection agency.
Only Cedar Shake & Shingle Bureau member
mills are allowed to label their products with
the Certi-label. Each member mill's bundles
will have the distinctive Certi-label tucked
under the bundle strap. Locating Certi-label
products is as close as your nearest
computer or telephone. Contact the Cedar
Bureau for more information.
Roof construction plays a major role in
determining the lifespan of cedar roofs.
Proper design is absolutely critical to ensure
long-term roof integrity. Proper installation
will help maximize the life of cedar products.
Certi-label Cedar Is Naturally
Long-Lasting
Longevity Starts With A Quality
Manufacturer
Longevity Continues With A
Quality Installation
CEDAR CARE AND MAINTENANCE OVERVIEW
Experienced care and maintenance
professionals can make recommendations
based on:
• Zinc or copper strips nailed at the ridge
cap can be effective to control moss.
Reaction between rain and the zinc or
copper forms a mild solution that is
carried down sections of the roof. The
optional use of these strips can be
eliminated if you are using Certi-Last
products.
• Overhanging branches should be kept
trimmed away from the roof. This will
prevent leaves, small branches and other
debris from building up and keeping the
roof wet.
• Gutters and downspouts need to be
cleaned regularly, usually in the spring
and fall. Downspouts (leaders) should run
directly to the ground or to another gutter
below. Never let a downspout drain
directly onto a lower roof surface.
• Cedar needs to breathe, and therefore
needs to be kept clean. Do not allow
leaves, branches or other debris to build
up on the roof. Both surface areas and
keyways (spaces between shakes and
shingles) need to be kept clear.
• Ensure ventilation is available, year round.
Areas with louvers, ridge vents, roof vents,
and soffit vents need to be kept clear and
never blocked off. Adequate ventilation
ensures heat and moisture do not build
up in the attic area. Adequate ventilation
also prevents water from accumulating at
the bottom of the roof and then freezing
(ice damming).
For even longer life span, where climate is a
factor, Cedar Bureau members offer
Certi-Last preservative-treated shakes and
shingles. These products are ideal for areas
of high humidity.
Certi-Last products are cedar shakes and
shingles that are factory pressure-treated by
quality treaters who are members of the
Cedar Bureau. Contact the treatment
company for warranty details.
Certi-label Cedar Is Also Available
With Pressure-Impregnated
Treatment Process
Pressure-treated Certi-Guard or Certi-Last
products should not receive after-market
roof treatments without written permission
from the manufacturer of such products.
There are hundreds of companies offering
topical roof spraying and cleaning services.
The Cedar Bureau has conducted an in-
depth study of care and maintenance
systems, and provides the following
summary:
Avoid the fly-by-night operation that has
no permanent office, no workmanship
guarantee, and no local references. Fly-by-
night operations often gouge consumers
for thousands of dollars beyond the value
of their service, leaving them with
damaged roofs covered with unsuitable
and sometimes dangerous treatment
products.
If you elect to have a topical treatment
applied to your cedar roof, the Cedar
Bureau recommends the following:
1. Check references (consumer, Better
Business Bureau, Chamber of Commerce).
2. Ask about the treatment product that is
being used (more details follow).
3. Ask to see the company's workmanship
guarantee, license and workers'
compensation coverage.
A Word About Topical Treatments
For Installed Roofs
21
Brindisi and Yaroscak Custom Builders, Inc.
Architect: George Dumitru