Installation Guide

Page 4
Fastening Methods
TimberTech Solid Planks
TimberTech recommends the use of TimberTech TopLoc
Face Fasteners for solid plank installations. Pre-drilling is
required when within 1-1/2” of the ends of the plank and for
temperatures below 45 degrees Fahrenheit to avoid splitting
and screw shear. Alternate fasteners are stainless steel or high-
quality coated composite deck screws.*
Earthwood Evolutions, TwinFinish, and ReliaBoard Plank:
Use TOPLoc Face Fasteners or a minimum #8 x 2-1/2” stainless
steel or other high-quality coated composite deck screws.*
DockSider: Use TOPLoc Stainless Steel or a minimum #8 x 3”
stainless steel or high-quality coated deck screws.*
Fastener Mushrooming:
This may occur when a non-composite deck screw is driven
into the decking. It can be greatly reduced or eliminated by
using a screw designed for composite lumber. If mushrooming
occurs, lightly tap the material back into the hole of all planks,
except Earthwood Evolutions. When installing Earthwood
Evolutions, using TOPLoc reduces chance of mushrooming.
If using alternative fasteners or other composite screws, we
recommend pre-dimpling the plank by drilling a hole slightly
smaller in diameter than the screw head and as deep as the
screw head before driving
TimberTech does not recommend any fastener that is not
explicitly stated in the TimberTech Decking Installation Guide.
Use of any alternative fastener does not void the TimberTech
warranty; however, if a decking failure is caused by using one of
these alternative fastening methods, any corresponding claims
will be denied.
TimberTech Fascia Boards
Using screws with proper installation of TimberTech Fascia
provides the best long-term holding. TimberTech recommends
the use of TimberTech TOPLoc Fascia Fasteners for best
results. Refer to gapping requirements on page 3 for proper
installation.
For Use with TOPloc Fascia Fasteners:
Using the TOPLoc Fascia Bit, pre-drill 2” from the top and
bottom alternating a maximum of 12”. It is recommended that
screws are evenly spaced for the best look.
Earthwood Evolutions Terrain
5.360”
.94”
Reliaboard
5.360”
.94”
TwinFinish
5.360”
1”
Earthwood Evolutions Legacy,
Natural, Tropical
5.360”
.94”
Docksider
5.50”
1.25”
Fasteners should be installed perpendicular to the deck surface and driven flush; do not overdrive or splitting may occur.
Always double joists at butt seams.
Do not toe screw deck planks as this will cause splitting.
• Set fascia in place being sure to follow proper gapping
requirements.
• Drive TOPLoc fascia fastener 90 degrees with the fascia
surface so that the screw head is flush with the surface.
Do not completely torque down screw; screw should
serve as a hanging mechanism to allow for expansion and
contraction in the fascia.
• Continue fastening in pattern described being sure to work
left to right or right to left. This will ensure flatness in the fascia.
12"