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Installing J-channel as Gable End Trim
Install J-channel to receive siding at gable ends, as shown
in illustration. To create a clean, professional look, follow
these steps:
To create an angle template, hold a piece of J-channel against
the slope while transferring the angle to another
J-channel with a pencil.
Next, transfer angle of template to the end of a length of
J-channel. Be sure to extend line onto nail flange. Cut away
channel face and nail flange.
Turn pattern over and transfer opposite angle to second
J-channel, being sure to extend line onto nail flange. Cut away
nail flange and return lip, but do not cut J-channel face.
Insert the full-faced J-channel into the mitered J-channel. If
the nail flange or return lips butt and prevent a tight fit, trim off
additional material from the second J-channel.
NOTE: For a more decorative appearance, you also can
use 3-1/2" or 5" lineals to trim gable ends (see next page
for details).
To splice the J-channel, follow these steps:
Cut out a 1" section of the nailing flange and face return as
shown.
Install inverted J-channel along the top of the wall, under the
eave. Here again, leave a 1/4" gap between J-channel and
cornerposts. Overlap J-channels 3/4" to allow for expansion.
When positioning the upper J-channel, be sure to allow for
expansion of the siding panel. In most cases, position the
J-channel at a point equal to the length of the panel plus 5/8"
(1/4" for upper expansion and 3/8" for lower expansion).
54
Wolverine Fit and Finish Installation Guide
90°
90°
1"
3/4"