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Installing Cornerposts
Install outside and inside cornerposts using dimensions and
procedures described earlier.
NOTE: Unlike the preparation for horizontal siding, do not
install a starter strip for vertical siding.
Installing Top and Bottom J-channel
Apply J-channel along the top and bottom of the walls to
receive the siding panels.
Install the bottom J-channel (illustration 1a). Overlap
J-channels 3/4". To do this, cut out a 1" section of the
nailing flange and face return (see illustration 2).
NOTE: If you prefer to use drip flashing with the
J-channel along the bottom of the wall, fabricate the
lengths you’ll need from aluminum coil stock of a color
to match the siding (see illustration 1b).
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).
NOTE: If you’re going to install soffit, you may want to
install the receiving channels for the soffit at this point.
The illustrations show alternative approaches for installing
siding and soffit receiving channels.
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Wolverine Fit and Finish Installation Guide
illustration 2
illustration illustration
1a 1b
F-receiver
1"
3/4"
soffit
J-channel
vertical
siding
soffit
J-channel
vertical
siding