Installation Instructions

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3. Perforate the cut edge using snap-lock punch approximately every 8", ensuring the “tabs”
face outward.
4. Hook the leg of the fascia panel over the F-channel, and snap the “tabs” into the
undersill trim. If soffit is not being installed, hook the fascia directly over the fascia board.
An alternative to snap-lock punch attachment is
to slide the top of the fascia behind metal drip-edge.
Overlapping Fascia
Overlap fascia by cutting the bottom edge of the underlaying panel, leaving a 1 1/2" tab
to be inserted into overlapping panel. Overlap 3/4" (half the distance of the notch).
Capping Fascia
To make corner caps, cut a piece of vinyl fascia that is 5 1/2" long. Mark the vertical
centerline on the back of the piece. Cut a 90° section of the bottom flange from the center,
leaving a 45° angle on either side. Use a hand seamer or metal straightedge to fold fascia
piece along vertical centerline to make a right-angle corner. Using a snap-lock punch, make
“tabs” just below the top edge of the corner cap, making sure that “tabs” face outward.
Install corner cap by locking the bottom over the existing ‘F’ trim and snapping the top edge
into the undersill trim.
Trimming Tops of Windows/Doors
1. Install window/door cap on top of window frame and flush with edge of the window.
2. Install J-channel, cut to length of the window allowing for overlapping.
Add twice the face exposure of the trim piece to the window or door dimension.
3. Start with the lowest piece, overlapping sides over bottom, and top over sides. Cut a tab
at each end of the bottom J-channel and remove (shown at far right). Cut and bend down
tabs on the side pieces, placing them into the channel of the bottom J-channels. Cut tabs
(shown at lower right) in the top trim, and bend down into the sides. This will allow for
water drainage and siding installation. A square joint is shown at right.
An alternative to square-cut corners
are mitered corners (shown at right).
4. Cut a section of undersill trim the same length as the
window/door cap (for horizontal siding), and notch it
at both ends.
5. Install the undersill trim, inverted inside the J-channel.
Shim outward, if needed, to maintain the same angle of
inclination as siding panels.