Certi-Last™ Pressure Preservative
Treated Red Cedar Shakes and Shingles
 Identification - The CERTI-LAST label identifies red cedar shakes and shingles
which have been pressure impregnated with wood preservatives to the standards
of the Cedar Shake & Shingle Bureau.
Material - Certi-Last is manufactured using Certi-Split
cedar shakes, Certigrade cedar shingles and Certi-Sawn
cedar shakes.
Application - Shakes and shingles are applied
according to standard specifications of the Cedar
Shake & Shingle Bureau. The treating company
or chemical manufacturer may have special requirements
regarding flashing, fasteners, etc.
30 Year Warranty - Certi-Last shakes and shingles
are warranted from failure due to fungal decay. The
warranties are issued and backed by the treating
company and/or chemical manufacturer. The
product is sold under the Certi-Last trademark
when treated to the minimum established standards.
Recommended Use - Certi-Last is recommended for
use on roofs in the shaded area of the map below,
having a climate index of more than 65 as identified
in the USDA Forest Service Research Paper FPL 109-1973.
- Red cedar shakes and shingles manufactured
by members of the Cedar Shake & Shingle Bureau
re graded in accordance with UBC Standards No.
32-8 and/or CSA 0118.1
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