Is Deck Maintenance
Necessary?
Do New Decks Need
to be Sealed?
What Will Happen to a Poorly Maintained Deck?
What Type of
Maintenance is Recommended?
What is Good Deck
Maintenance?
Preparation
Cleaning Products
Sealing
Alternatives to Traditional Decking Materials
Almost every Fire Island Home has a deck. It may just be an entrance
ramp to to the most elaborate designs. While some decks are made with
traditional redwood and cedar (which have natural preservatives in it),
many decks are now made from cedar or pressure-treated pine.
Our rough climate requires that most decks receive some attention
during the year. The UV rays in the sun and wetness from rain are the
greatest enemies of a deck.
Is Deck Maintenance Necessary?
Many decks are made of pressure treated pine. Good quality treated pine
will last thirty years or so before there is any substantial decay.
However, discoloration and splintering can begin after only a few months.
For this reason, most people take on a regular cycle of maintenance.
Failure to do so won't cause your deck to rot, but your deck will most
certainly become discolored and the surface will become rough and prone to
splinters.
Do New Decks Need to be Sealed?
Yes. To ensure that the deck continues to look good with minimal
splintering and discoloration, the deck should be sealed as soon as it
becomes stabilized within its environment. This usually means waiting a
few weeks after the deck is completed before sealing.
What Will Happen to a
Poorly Maintained Deck?
Many people never treat and seal their decks. Untreated decks don't
fall down or rot away quickly. Nothing dramatic happens. They will simply
get dirty and the surface will become much rougher much sooner. Splinters
are a common problem with wood decks. Another hazard is slick surfaces.
Much of the "dirt" we see on a poorly maintained deck is actually living
organisms. Just like the algae and moss that grow on rocks next to a
stream, the organic material growing on a deck can make the deck very
slippery when wet. Cleaning and sealing a deck kills, removes, and slows
the return of organic build-up.
What Type of
Maintenance is Recommended?
Approximately once a year, the deck should be checked for loose boards
and protruding nails, thoroughly cleaned, and resealed. Cleaning involves
the removal of dirt, algae, moss, and other organic matter. Resealing is
accomplished applying a clear or semi-clear liquid sealant to all exposed
surfaces. You can do any of these tasks yourself if you are so inclined.
Many professional painter on the Island offer this service. Prices and
quality vary.. Typically, deck cleaning and sealing expenses run from
$300-$600. At the bottom end of that scale are a lot of firms that don't
know much about what they are doing. Choose an experienced, high-quality
individual.
What is Good Deck
Maintenance?
Preparation
The process begins with clearing the deck of furniture, toys, etc. Then
cover fragile plants. Next, sweep deck free of large debris. Check
carefully for loose boards and nails that stick up. Make any necessary
repairs. Before beginning the cleaning process, make sure no children have
access to the area.
Cleaning Products
In accordance with the directions that come with the cleaning
solutions, it may be necessary to hose down the deck and surrounding area
before applying cleaning solutions. The water can also help dilute any
chemicals that may inadvertently come into contact with plants and grass.
Even with mild solutions, care must be taken to limit the amount of
solution that gets on nearby plants and grass. Many solutions contain
bleach, which is toxic to plants when in concentrated form. The solutions
can be brushed onto the deck using a broom, a spraycan, or can be sprayed
on with a power washer under low pressure.
After waiting the directed length of time for the chemicals to do their
work, the deck should be thoroughly rinsed. This is the step where more
power can be particularly helpful, as water under pressure more
effectively rinses out both dirt and chemicals. However, too much pressure
can gouge wood or cause the grain to become exaggerated. Within wood, the
visible grain marks differences in density and hardness. Part of each
grain is relatively soft wood. This softer wood can be rinsed away if too
much pressure is used. At still higher pressures, even the harder parts of
the grain can be damaged.
Sealing
Once the deck is dry, put down tarps to protect plants and other items
on which you don't want to get sealant. The level of protection needed
depends in part on how you are going to apply the sealant. Sealant can be
brushed on, rolled on with a paint roller, or sprayed on. I have had best
results with foam rollers from Home Depot.
Spraying is the fastest by far, but is the hardest to control. Some
sealants have color in them and will stain surfaces to which they are
applied. Sealants are also rough on plants. While most plants won't be
damaged by getting hit with wafting over-spray, direct hits can do real
damage.
Sealants come in either water- or oil-based formulas. Wax or oil. Be
careful considering Linseed Oil based wood protectors. In our experience
they attract quickly black mildew. Professional sealants, which are
typically superior, are oil-based. Some sealants contain stain to tint the
color of the deck. Sealants with stain don't always deliver a uniform
color across the wood, so try some in an out-of-the-way spot to make sure
the results match your expectations. Good quality sealants contain
ultra-violet sunlight protection to reduce the damaging effects of the
sun.
Be careful in your selection of the sealant and consider the toxicity
to humans when walking barefoot on treated wood.
Alternatives to Traditional
Decking Materials
There are new decking material options. Several companies make new
decking materials that don't splinter and don't require painting or
sealing. Most are made of plastic or a blend of wood and plastic. While
more expensive initially than the common wood products used today, they
offer large savings over time due to reduced maintenance costs. Most of
them are probably not good as decking replacement on older decks since
they require tighter spacing of joists due to reduced dimensional
strength.