Plan deck sealing
for dry days when the weather isn't too hot or cold
Deck sealing can be performed during good summer weather from Spring
through Fall in the Northeastern and Midwestern United States. Most deck stains and sealers require a
few dry days for proper application and dry time. Temperatures need
to be warm enough (most often over 50-degrees F day and night) but not too
hot (usually over 85-degrees) and rain should not be in the forecast for
a few days.
The best "work window" for sealing a deck is usually from June 1 through September 30.
Trying to seal a deck before June can be difficult due to finicky spring
weather with its intermittent periods of rain and cool nighttime
temperatures followed by dew in the morning. On the other hand, some summer temperatures can be
too hot for many sealers. Waiting to seal a deck too long into the fall can
bring about cold night temperatures and the added aggravation of falling
leaves from nearby trees. Picking the right weather conditions will
affect sealer performance in the long run.
Photos of deck cleaning &
First the deck
Photo #1 -
Deck after being power washed
and allowed 24 to 48 hours drying time
Photo #2 -
Completed deck with a
'Redwood' translucent sealer
When pressure treated lumber
was first introduced, we were told it was "maintenance free". Over the
years we have found that decks can become pretty ugly without periodic cleaning and
sealing, usually being required every two years.
it's the bleaching effect of the sun's ultraviolet rays in full sun, or the
unsightliness of algae growth in full shade, pressure washing
will clean your deck, folowed by a fresh coat of sealer will bring back its natural
Key Benefits of Deck Cleaning
Protect a major
Improve aesthetics for
CCA (chromated copper arsenate) treated lumber reduces exposure to
home's value with good maintenance
'Cedar Tone' sealer
Deck cleaning and
sealing is done
in two steps; first power wash your deck, then following the proper drying
period, seal your deck.
Most power washers use regular tap water, which is pressurized to clean-off years of accumulated dirt.
Too much pressure can damage wood and make it 'fuzzy' so use care,
especially if your power washer p.s.i. exceeds
2,000 to 2,500 psi. This video will help guide you through the basics of
You have a choice of
which brand of sealer you would like to use on your deck, but we always
liked Flood CWF-UV®. "Clear" coatings are the most commonly used, but tints are also
available. Tints can help the appearance of older decks that have more
stains in the wood that aren't always removed by powerwashing.
stains work well where an old deck finish is blotchy, or if you wish to
match the deck color to the trim on the house. Many solid color stains
can be color matched to a paint sample.
Photos of decks
with solid color stains:
Solid color stain
matched to the house trim: 'Pella Tan'
Sunburst deck railing sealed with a cedar-tint solid color stain
This pool fence was sealed with
'Cedar Tone' CWF-UV