Installation Instructions
CertainTeed Vinyl Siding Installation Guide
126
Locate the mark at the center of the panel. Use the nailing slot 
closest to this mark. Center pin the panel in this location using 
one of the following options:
1.  Install a nail on both ends of the same nail slot.
2.  Drill a 3/16" diameter hole through the nail hem and substrate, 
and place a single fastener through this newly 
drilled hole.
Position nails in the center of the remaining slots, 16" apart. Leave 
adequate room between the fastener head and the nail flange for 
expansion and contraction (approximately 1/16" to 1/8"). 
Do not hard nail these fasteners.
Install the next panel to the left of the installed panel. Lap this panel 
over the installed panel, positioning the right edge of the panel to 
the appropriate temperature mark, which is located in the factory 
notch area.
If the ambient temperature is less than 45°F, lap the panel to the 
first (30°) mark. 
If the ambient temperature is between 45°F to 80°F, lap the panel 
to the second (65°) mark. 
If the ambient temperature is greater than 80°F, lap the panel to 
the third (100°) mark. 
Fasten the panel according to the procedure described earlier.
Continue the first course of siding, remembering to center pin 
every panel.
Start the next course of siding from the right side, repeating the 
earlier steps. Offset the laps from course to course a minimum 
of 2 feet.
temperature marks
30° 65° 100°
2' min. 
offset
3/16"










