Installation Instructions
CertainTeed Vinyl Siding Installation Guide
117
Starting Cedar Impressions with Lineals 
over Horizontal Siding
Cedar Impressions perfection 
shingle or half-round shingle with 
lower round removed
Cedar Impressions panel is 
inserted into the pocket of the 
lineal, making sure to leave 1/4" 
for downward movement
hand-punched horizontal 
siding (locking area has been 
removed); siding panel locks 
into dual undersill trim
butt dual 
undersill trim 
upward against 
bottom of 
flashing
dual undersill trim
Cedar Impressions 
4" metal starter strip
5" lineal
1/4"
flashing










