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.
66
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
