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CertainTeed Vinyl Siding Installation Guide
47
3-1/2" Snap-on Lineal Application around
Windows and Doors
This application works only on 1"-faced J-channel .
The installation of J-channel for snap-on lineals is the same
procedure as installing lineal starter strip. Measure the openings
and cut the J-channel 1/2" less than your measurement. Install
the J-channel around the opening, centering the J-channel so
that each end of the J-channel is 1/4" from the opening. Nail the
J-channel every 8" to 10".
Lineal application around windows
Measure the top of the casing and add 7" (3-1/2" extra for each
side). After the piece is cut to length, flip it over and cut 3/8" off
the locking leg as shown.
Snap the lineal over the J-channel as shown.
Repeat the process for the bottom of the casing.