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29
DECKING
structural material be used as the framing and
joists. One option is using Trex Elevations
®
steel
deck framing. Refer to www.trex.com for more
information on Trex Elevations. Check your local
building codes for restrictions. Trex decking cannot
be used for structural applications.
DO NOT attach Trex decking directly to any solid
surface or watertight system. See Sleeper Systems
on page 30. In most cases, install fasteners at a 90°
angle (perpendicular to the board).
At board ends on the
deck's edge, you can
install screws placed
perpendicularly at
the recommended
distance, at
minimum of 1"
(25 mm) from the
board end and edge,
without splitting the
board.
For butt joints, where
boards meet over a
single joist, add a
2" x 4" (51 mm x
102 mm) “nailer”
board at the butt
joint. This allows you
to install a screw at a
90° angle.
FRAMING AND FASTENING TIPS (continued)
DOCK APPLICATIONS
Trex decking contains no materials that
will harm marine life and is safe for
the environment. As long as dock is in
intermittent contact with water, i.e.,
splashing and not in continuous direct
contact with water, the durability of the
Trex decking should not be affected.
For docks, a 3/8" (10 mm) width-to-width
gap between boards is recommended
to allow for increased drainage due to
increased contact with water. In addition,
stainless steel fasteners should be used.
If there is sufficient contact with the dock
and gasoline, grounding of the dock is
also recommended.
1" (25 mm)
1" (25 mm)
TREX AND STATIC ELECTRICITY
While this is not common, static electricity can
occur on walking surfaces in dry climates or in
areas where dry winds and dust-borne particles
lay on the decking surfaces. Static electricity
can build up on occupants walking across any
composite decking surface, including Trex,
then produce a small static shock if they touch
a grounded metal surface such as railing,
door, etc.
This condition can be decreased greatly with
the use of a product call ACL Staticide®.
Two products tested were General Purpose
Staticide® and Heavy Duty Staticide®.
Both are effective in greatly reducing static
electricity on Trex decking surfaces. Apply full
strength using a mop on a dry decking surface,
and allow to dry, no rinsing, no diluting needed.
Products are non-toxic, non-fl ammable, non-
staining (will not change the color of decking
surface), completely biodegradable and safe to
use. Product is water based and may require a
second application after rain or other weather
conditions. Over a period of time, the effect of
static will dissipate naturally on the decking
surface.
See link for more information on product:
http://www.aclstaticide.com/antistatic_
coatings.html
TREX PRODUCTS NEAR LOW-E WINDOWS
Low-E glass refl ects more sunlight, and it
has been observed that the extra refl ectivity
combined with any concavity in the glass can
act like that of a concave mirror, concentrating
sunlight onto outdoor objects, including that
of decking and railing. This can result in an
extreme amount of heat concentrated on
areas of the decking surface, which in turn can
sometimes char the decking surface or cause
the decking to slightly bow.
Composite decking is a great alternative to
traditional wood decking. When building your deck
and railing, it is recommended that code-approved
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