Installation Instructions

CertainTeed Vinyl Siding Installation Guide

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.