Installation Instructions
CertainTeed Vinyl Siding Installation Guide
35
Fasteners must penetrate a nailable surface at least 3/4". 
Be sure to leave up to 1/16" between the fastener and the 
panel nailing flange. If you’re using a power stapler, drive the 
staple perpendicular to the nailing slot with one leg of the staple 
centered in the slot and the other leg above the panel.
NOTE: Check with local building codes to verify fastener 
requirements for your area. 
Nail Spacing and Product Expansion 
and Contraction
It’s normal for vinyl building products to expand and contract with 
temperature changes. To ensure a successful siding installation, 
you must allow for this movement during application.
See the following charts for more information.
Product 
Category
Max. Nail 
Spacing Gaps to Accessories Overlap
40°F 
or Greater
Less 
than 
40° F
40° F 
or Greater
Less 
than 
40° F
Horizontal Lap 
Siding (12' 6")
16"–24"* 1/4"  3/8" 1-1/4" 1"
Horizontal Lap 
Siding (16')
16"–24"* 3/8" 1/2" 1-1/2" 1-1/4"
Horizontal Lap 
Siding (20')
16"–24"* 3/8" 1/2" 1-1/2" 1-1/4"
Horizontal Lap 
Siding (25')
16"–24"* 3/8" 1/2" 1-1/2" 1-1/4"
*Depends on profile, fastener and geographic area.
1/4" to 3/8"










