Long a favorite in Mediterranean climates,
pergolas are an attractive and
practical
way to add architectural interest
to your
landscape. Pergolas are constructed
by placing
a grid pattern of rafters and
laths atop
sets of columns to create a lattice-like
roof over an outdoor space, providing
pleasant,
dappled shade to patios, decks,
balconies
and swimming pools decks. A variety
of sun
loving plants such as grape vines,
climbing
roses and clematis can be trained
up the
columns of a pergola to add even
more charm.
Pergolas can be custom built,
but less expensive
kits are available at garden
centers, home
improvement stores, and online
sites. The
following should be considered
when buying
a pergola:
- Think about the size and style of pergola
that will best suit your site. It should
neither overwhelm your yard, nor should it
look insignificant. Pergolas can be very
formal or rustic, depending on the architecture
of your house.
- The rafters and laths of a pergola should
be spaced according to how
much shade you
want. 16 inches to 24 inches
is standard,
but closer spacing will give
you more shade.
It is important to have enough
laths to hold
the rafters in place and keep
them from twisting.
- Make sure the columns are sturdy enough to
support the mature weight of
any vines you
plan to grow on the pergola.
The thick trunks
of wisteria, for instance,
are quite heavy
and will cause flimsy structures
to collapse
over time.
- Wood is the most traditional choice of construction
material. Because pergolas will sit outside
all year, a good quality weather resistant
wood will last the longest. Mahogany can
be left untreated to weather to a beautiful
silver gray, but it is usually not available
in lengths of more than 12 feet. Cedar can
also be stained or coated with urethane,
and it comes in longer lengths. Pressure
treated lumber is also available and is usually
less expensive.
- Pergolas constructed from manmade composites
offer a long lasting alternative
to wood.
They can be painted any color
and are almost
maintenance free.
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