Installation Instructions

Tab of drip cap
bent down inside
the J-channel.
DRIP CAP
The drip cap is nailed above the window and door and extended on
either side, flush with the exposed leg of the J-channel. A tab is cut
at either end of the drip cap and bent down over the J-channels. If
required to maintain panel angle, a furring strip is nailed over the
drip cap.
Overlap the vinyl panels half the
dimensions of the factory notch.
For good appearance, laps should
be away from traffic areas and
staggered horizontally a minimum
of 2' (600 mm) from one course to
the next. Do not “repeat” an overlap
in one vertical line for a minimum
of 3 courses. When overlapping do
not nail closer than 6" (150 mm)
from the ends of both panels. Refer
to the section on “Tools” for proper
cutting equipment. If using a power
saw, reverse the blade on the saw
shaft for easier cutting, and use a
fine tooth plywood blade.
INSTALLING SIDING
AROUND WINDOWS
AND DOORS
To fit the siding under windows and
doors or under the eaves, measure
the distance from the bottom edge
of the lock on the undersill trim to
the bottom edge of the top lock of
the last full siding panel. Add 5/8"
(16 mm) to this measurement to
allow the panel edge to engage in
the undersill trim.
a. Cut the siding panel to the
adjusted measurement under
windows or at finish of siding
installation.
Factory notch
1/2"
of factory notch
Measure this distance.
Measured distance + 16 -
The undersill trim, installed in a reversed position, must be extended
on both sides, flush with the outer edge of the J-channel. Remove
indicated shaded area to allow siding to fit into the J-channel and into
undersill.
STEP 5
INSTALL SIDING PANELS
The first siding panel is engaged in
the starter strip and nailed. If the
siding can be moved laterally after
being locked up, a positive lock has
been achieved. Continue nailing on
16" (400 mm) centers [and not over
8" (200 mm) centers in high wind
areas]. Leave 1/4" or 3/8" (6 or 10
mm) of space where siding fits into
accessories to allow for expansion.
When installing below freezing –
leave 1/2" (12 mm).
12
13
SIDING INSTALLATION
16" (400 mm)
16" (400 mm)