Timber Products >> Preservative Treated
Preservative Treating (otherwise known as CCA) protects wood against fungal decay often associated with high heat and humidity conditions. This treatment has proven to prolong the life of cedar roofing or siding.
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.
Certi-Last is manufactured using Certi-Split cedar shakes, Certigrade cedar shingles and Certi-Sawn cedar shakes.
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.
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