Installation Instructions

CertainTeed Vinyl Siding Installation Guide
105
Starting on the right side of the wall, hook the bottom locking leg
of the panel into the previous course and slide the panel into the
cornerpost or receiving channel. Leave 1/4" space between the
panel and the corner for expansion.
Set the spacing of the remaining panels using the
PanelThermometer and temperature indicator lines.
Continue to stagger panel courses, alternating each time to ensure
a random shingle pattern up the wall.
Installing under a window or opening
Install Cedar Impressions undersill trim. Cut the panel to fit under
the window. Drill a 3/16" hole in the upper center of the panel.
Using a snap lock punch, raise tab faces on the outside of the
panel 1/4" from the trimmed edge, 6" apart. Lock the panel into
the previous course, and center nail the siding through the 3/16"
hole drilled earlier. (Center nailing controls the direction of the
panel’s expansion and contraction.) Lock the panel into place.
Installing over a window or opening
Cut the panel to fit over the window by measuring from the locking
tab of the previous row to the bottom of the receiving pocket.
Add 1/8" to this measurement. Turn the panel over and, using
this measurement, measure from the bottom of the return leg.
Cut the panel to this dimension. Install the cut panel by positioning
the panel over the window and into the receiving pocket. Lock the
cut panel into the previous course by pushing in and up. The cut
edge should be 1/4" below the top of the receiving pocket.
Finishing the top course
See instructions on page 65.
Installing Cedar Impressions Mitered Cornerpost
Install the siding on both sides of the wall before you install the
cornerpost. Space the siding 3" from the edge of the corner.
The corners are designed to fit over the panels that are used to
start a new course. If you have followed the A + B cut pattern,
the mitered cornerpost will fit easily over the panel. Lock the first
corner over the siding, making sure it also locks into the starter
strip. The top of the corner must be in line with the top of the
panel. Nail the corner through the top two nail slots.
The right-side corner gap has cut marks at 1/8" increments.
They allow you to fit the corner to the different butt heights you
may encounter as you finish a course. Trim the corner gap as
needed to fit the panel.
measure from
the locking tab
to the bottom
of the receiving
channel and
add 1/8"
bottom of
receiving channel
bottom of
locking tab
cornice receiver
cornice
molding
trim as
needed to
fit corner
Cedar Impressions panel
1/4"
1/4"
back side of
panel to be cut
bottom of
return leg