Installation Guide
52
soffit installation
5-step procedure continued:
Step 2
Measure soffit panels 1/2” shorter 
than opening. Mark this dimension on 
a soffit panel and cut using a power 
saw with a reversed finetooth blade 
or snips.
Step 3
Insert one end of the panel into the 
channel on the wall, nail the other end 
to the wood fascia. (Fig. 1)
• Make certain the panel is 
perpendicular to the wall, and then 
nail. Depending on the installation 
method being used, nails will be 
hammered either into a nailing 
strip or fascia board.
• Do not nail soffit panels tightly.
• Continue the installation by 
locking and nailing the panels. 
Make certain the panels are fully 
locked along their entire length.
Step 4
To turn a corner, measure from the 
channel at the wall corner to the 
channel at the corner of the fascia 
board (Fig. 1). Subtract 1/4˝ for 
expansion. Cut and install H-Molding 
lineal or back-to-back J-Channel. If 
necessary, install nailing strips to 
provide backing for the lineal. Miter 
cut the corner soffit panels and install 
as described in Step 3.
Step 5
Install aluminum fascia as needed 
to finish installation. (see section on 
fascia installation)
Soffit double
channel lineal
Fascia
Miter soffit
panels
Fig. 1










