 Decks
Should Be Finished For Optimal Performance
Although cedar is a naturally durable wood ideal for decks,
its performance is enhanced when protected by an appropriate
finish. Decks have full exposure to sun and rain, which greatly
accelerates the weathering process. In fact, so aggressive are
the effects of weather extremes in some areas of the country
that a deck may need cleaning, restoring and refinishing as
frequently as every two to five years depending upon the finish
used. Decks should never be allowed to weather before finishing.The
simplest, but most labor-intensive, finish to maintain on a
cedar deck is a water-repellent preservative, which may have
to be applied annually. The next easiest is a semi-transparent
oil-based stain. Both types of finishes are extremely effective
in stopping the absorption of water and are recommended. It
is important to ensure that the product has been specifically
formulated to withstand the abrasive effects of foot traffic.
Oil and latex solid-color stains, (also called heavy-bodied
or opaque stains), paints, and other film-forming finishes
are not recommended.
If there is uncertainty over whether to use a water-repellent
preservative or a stain, first apply a water-repellent preservative.
It is possible to switch to a semi-transparent stain when
the deck needs to be refinished. Even if the deck has been
maintained with a water-repellent preservative for many years,
an oil-based semi-transparent stain will perform satisfactorily.
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