Installation Instructions

CertainTeed Vinyl Siding Installation Guide
119
Application of Half-Round Shingle
Under Soffit
The amount of trimming required for a Cedar Impressions Half-
Round Shingle panel determines the accessory piece required to
receive it. See the descriptions below.
Perfection Shingles do not have these restrictions.
removal of nail flange up to the locking leg: requires
drilling a new center hole, and punching a slot on both
ends (16" from center); this allows for expansion
removal of 1-1/8" or more of the nail flange: use cornice
receiver or F-channel and cornice molding—drill a new
center hole and punch a slot on both ends
(16" from center)
removal of 1-1/2" or more: use either J-channel or
cornice receiver and cornice molding—drill a new center
hole, and punch a slot on both ends (16" from center)
removal of 3" or more: use standard 3/4" pocket
J-channel or cornice receiver and cornice molding
combinations—drill a new center hole, and punch a
slot on both ends (16" from center)