Wolverine Siding and Vinyl Carpentry Soffit and Decorative Trim - Manual (Page 43)

Lineal Application around Windows
Measure the top of the opening and add 7" (3-1/2" extra for
each side) if the side lineals are also 3-1/2". Add 10" total if
using 5" lineals.
Use a triangle to create a 45° angle or measure 3-1/2" in from
the locking leg.
NOTE: The nail flange is always the longest part of a
surrounding miter.
Use snips to remove the part as shown.
Cut a 3/4" rain tab (as shown)
Completed top lineal snapped into the previously attached
starter strip.
NOTE: The bottom miter of side lineals has the same cut
as both ends of a top lineal; however, a rain tab is not
required.
42
Wolverine Fit and Finish Installation Guide
3-1/2"
window or
door frame
cut for rain tab
rain
tab
back-side view
of mitered lineal
45°
3-1/2"
remove