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Installation Instructions – ATW GutterTRIM™
Tools required:
Miter Saw
Hammer
Screw-gun
Level
Tape Measure
2" Hole Saw
Additional Supplies:
- FastenMaster® TimberLok® (or equivalent) Exterior Wood Screws – 4" (minimum)
- Bond&Fill™ Structural Adhesive/Filler and Bond&Fill FLEX™ (available from your building materials
dealer) For more information on Bond&Fill visit:www.bondfill.com
GutterTRIM™ by Advanced TrimWright, Inc. is a true "Boston" profile gutter that is installed using the same tools
and fasteners as you would normally use to install a wooden gutter of the same profile.
- The GutterTRIM must be fastened securely through the fascia boards and directly into the rafter
tails/structural members. Fasteners should be spaced at a maximum of 16” apart. When joining two or
more lengths of gutter, fasteners MUST be applied into the two nearest rafter tails/structural members on
either side of the joint. Fasteners should be a minimum of 4” long. Each must extend through the back
side of the gutter and fascia boards and lock securely into the structural member.
- The GutterTrim should be installed with a fall (pitch) of ½" in 20’ to allow for proper water flow and to
keep debris from collecting in gutter.
- Down-spout drops are typically located at ends of runs and corners. For extremely long runs, additional
drops may be added within the run. The downspout drop should be positioned carefully – always at the
lowest point in the run. Downspout drops can be installed by first drilling a hole through the floor of the
gutter using an ordinary power drill and a 2” hole saw bit. Next, the PVC drop should be positioned within
the hole with its highest point just slightly beneath the floor of the gutter. The drop can be temporarily
secured in this position with masking tape. The final step is to apply Bond&Fill® Structural
Adhesive/Filler into the gap surrounding the down-spout drop. For the most secure and water-tight, be sure
to apply the adhesive/filler from both the top (gutter floor) and bottom sides. Once fully cured, the
masking tape can be removed.
- Due to the expansion and contraction properties of cellular PVC, Advanced TrimWright, Inc. recommends
that this product only be installed in sustained temperature conditions above 40°F and below 80°F.
Important – Joints and Mitered Ends
For a rigid, permanent joint between multiple lengths of ATW GutterTRIM or when preparing solid mitered corners,
Bond&Fill® Structural Adhesive must be used to insure a strong, water-tight bond. It is also recommended that Bond&Fill
Claw Gripping Biscuits (#20) be used to insure proper alignment. Once prepared, the following steps should be followed
to achieve optimum results:
- A liberal amount of Structural Adhesive should be applied to the entire face of one adjoining end and inside each
of the biscuit slots on both ends.
- The ends should be brought together gently. Care should be taken not to squeeze too much of the adhesive from
the joint. The performance of the bond is compromised if the application is less than 1/8” thick. In addition, the
ends should be joined together a single time. Repeated separation and re-joining will also compromise the
performance of the adhesive.
- Both sections of gutter must be fixed into position. Each gutter should be fastened using the recommended
hardware listed above. Prior to curing, excess adhesive can be removed from both inside and outside surfaces
using a rag or putty knife. A slight overfill bead is recommended and will help to reinforce the strength o f the
bond.
- In addition to the normal required fasteners, additional bracing should be considered to assure that there is
absolutely no movement or stress on the joint until the adhesive is fully cured. (Minimum 24 hours)
If a flexible joint is required to accommodate some expansion/contraction, Bond&Fill® Flex Sealant must be used rather
than Structural Adhesive. A gap of at least 1/8” should be left between the ends to allow for sufficient sealant. Apply a
liberal amount of sealant into the gap overfilling slightly.
Rubber Sealing Membrane
In addition to properly preparing and bonding the joint, a rubber membrane flashing should be sealed over each seam to
permanently insure a water-tight seal even if the joint were to open due to expansion/contraction. For this application
ATW suggests overlaying each joint with an 8-inch wide (minimum) piece of rubber sealing membrane (rubber roofing
grade). In order for the membrane to bond correctly, both the PVC gutter surface and the surface of the rubber membrane
must first be cleaned with a solvent based cleaner that leaves absolutely no residue on either surface. Next, a thick layer of
the membrane adhesive sealer should be applied to both the top and inside surfaces of the gutter and to the rubber
membrane. Care should be taken to fully cover the structural bead on the inside corners of the gutter. Multiple coats may
be applied to assure adequate coverage. Be sure to fully cover the top of the back edge and front lip of the gutter. The
adhesive must set on the surfaces until each is dry to touch (10-30 minutes depending on conditions). Once set, carefully
line the gutter with the rubber membrane starting at the back and smoothly working to the front lip. Starting from the
center, press the rubber membrane securely into the adhesive sealer. You must make sure that all air bubbles have been
squeezed out and that the two surfaces have attached completely. Last, carefully trim the excess rubber along the edge of
the front lip with a utility knife leaving a straight and finished appearance.
It is the Installer’s responsibility to determine if jobsite conditions are
suitable for the use of this product. Advanced TrimWright, Inc and
Bond&Fill, LLC cannot be held responsible for the separation of
Joints, End-caps, or Down Spout Outlets due to expansion or
contraction caused by jobsite or environmental conditions.
Advanced TrimWright, Inc. East Taunton, MA 02718
www.advancedtrimwright.com
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