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Soffit
You can use solid vinyl panels or perforated vinyl panels for
soffit installations. Perforated panels provide ventilation, which
helps to reduce heat buildup in the summer and ice dams in
the winter. In buildings with roof ridge vents, you should install
ventilated soffit. Check local building codes to determine the
amount of ventilation required. In high windload areas, you
should also check local building codes to determine if the
application methods that are required differ from those
described below.
The procedure used to install soffit depends on the
construction of the eaves:
• Open eaves—eaves with exposed rafters or trusses—are
typical of new construction. You will also have to use open
eave installation procedures if you have to remove damaged
soffit at a remodeling project.
• Enclosed eaves—eaves with soffit in place—
are typical of remodeling projects.
Installation over Open Eaves
The first step in installing soffit is to install the proper receiving
channels. You have several options for receiving channels. You
can use accessories such as F-channel or J-channel, or you
can make channels using coil stock. The best approach is to
select a method that works most effectively with the
construction techniques used to create the eave. Examine
figures 1-4 and find the one that most closely resembles the
construction methods used on your particular project.
If no F-channel is available, J-channel can be modified to
create F-channel. Simply cut slots in the nail flange area where
it would be nailed to the wall. After cutting the nail flange,
bend the flange back and nail to the wall. When installing
Beaded T2" panels, use 3/8" H-bar or 3/8" J-channel.
Installing Receiving Channels
Install the receiving channels following the details shown in
figures 1-4. Nail the channels every 16", positioning the nail in
the center of the slot. Do not nail tightly. If you’re using
Beaded T2" panel as soffit, nail both the channel and the soffit
every 8"-12" to create added support.
If the eave span is greater than 16", you will have to install
nailing strips (as shown in figure 4) and install the receiving
channels on the nailing strips.
If the soffit will turn a corner, cut and install the channel so there
is 1/4" for expansion at each of the adjoining walls.
74
Wolverine Fit and Finish Installation Guide
fascia cap or
coil stock
fascia cap or
coil stock
open truss
F-channel
soffit
16"-24"*
open truss
F-channel
J-channel
soffit
16"-24"*
open
rafter
F-channel
J-channel
soffit
soffit
add nailing
strips
add
framing
16"-24"*
16"-24"*
FIGURE 2
FIGURE 1
FIGURE 4
FIGURE 3
* To determine the maximum permissible span, consult
individual product specifications and local building codes.