Installation Instructions

CertainTeed Vinyl Siding Installation Guide
84
Install the next panel. Lock the panel into the preceding panel,
then nail every 12". Continue with succeeding panels.
When necessary, cut panels to fit around doors and windows.
When marking the cut, remember to allow for expansion.
The method used to install panels around doors and windows is
determined by the need to cut a panel and the position of that cut.
If a cut was made next to a remaining V-groove, insert the panel
into the J-channel. If a cut removes the support provided by a
V-groove, use the procedure described above to provide support
for the trimmed edge.
To finish the first course of a wall, cut the final panel to size
and install it in an outside cornerpost, using the method
described above.
NOTE: The cutting and supporting procedure described above
is also used when fitting panels into inside cornerposts.
Installing Gable End Panels
When installing vertical or Board & Batten siding on a gable end
wall, you should try to create a balanced appearance.
There are two ways to do this:
You can start from the center of the wall and work toward the
sides. Begin by finding the center point of the wall (beneath the
peak) and draw a plumb line. Nail two lengths of J-channel, back
to back, along this line. Be sure to flash underneath the J-channel
to help prevent water damage due to water seepage between
the J-channels. Cut the upper end of the first panel to the proper
height and slope. Remember to allow for expansion.
NOTE: To guide the cutting of the upper end of the panel,
make a pattern duplicating the gable slope. (See page 67.)
Insert the panel into the J-channel along the gable slope.
Use a level to make certain the panel is plumb. Nail every 12".
Continue cutting and installing panels. Then repeat the procedure
on the remaining half of the gable end.
If you want to work from one end of the wall to the other, begin by
centering a panel under the center of the peak. Mark the position
of the panel on the wall, then measure the distance from the left
(or right) cornerpost to mark for the left (or right) edge of the
center panel.
If you need a partial panel, cut it and install it at the cornerpost,
following the procedure described on page 83. Cut the upper end
of the panels to proper height and slope, following the procedure
described above. Remember to allow for expansion.
plumb
line