Installation Instructions

application instructions (cont.)
• All exposed face nails must be caulked and sealed in a manner
that prevents moisture intrusion and water buildup.
• Penetrate structural framing or wood structural panels and
structural framing a minimum of 1-1/2 inches (38 mm).
• Nail from the center of the siding toward the ends, or from one
end to the other end. NEVER nail from the ends of the siding
toward the middle.
• Shim siding at studs as needed, to avoid drawing siding against
uneven walls. Do not overdrive nails. Nail head should seat
firmly to face of siding but not be overdriven to distort the
siding surface.
• For information on fastening LP SmartSide products in high wind
speed areas, refer to ICC-ES Report ESR-1301 or APA PR-N124.
Alternative Fastening Option for Strand Lap Siding over Wood
Structural Panels and 24 inch (610 mm) o.c. Stud Spacing
• Limited to 6 inch (152 mm) and 8 inch (203 mm) wide lap siding.
• Wood structural panels must be a minimum 7/16 Category with an
APA Trademark that contains the consensus Standard DOC PS 2.
• 38 Series Strand Substate lap must be fastened with:
- Minimum #8 hot dip galvanized tapered head wood screw,
spaced a maximum of 12 inches (305 mm) o.c. with 1-1/2 inch
(38 mm) screw penetration into stud or…
- Minimum (0.092 in. shank diameter) hot-dip galvanized ring
shank nail, spaced a maximum of 8 inches (203 mm) o.c. with
1-1/2 inch (38 mm) nail penetration into stud.
Alternative Fastening Options over SIP Assemblies
• Wood structural panels must be a minimum 7/16 Category with an
APA Trademark that contains the consensus standard DOC PS 2.
• 38 Series Strand Substrate lap must be fastened with:
- Minimum #8 hot-dip galvanized tapered head wood screw,
spaced a maximum of 12 inches (305 mm) o.c. or...
- Minimum (0.092 inch shank diameter) hot-dip galvanized ring
shank nail, spaced a maximum of 8 inches (203 mm) o.c.
• 76 Series Strand Substrate lap must be fastened with:
- Minimum #8 hot-dip galvanized tapered head wood screw,
spaced a maximum of 16 inches (406 mm) o.c. or…
- Minimum (0.092 inch shank diameter) hot-dip galvanized ring
shank nail, spaced a maximum of 12 inches (305 mm) o.c.
Alternative Fastening Option over ICF Assemblies
• 38 and 76 Series Strand Substrate Lap must be fastened with:
- Minimum #8 hot-dip galvanized, tapered head, self-drilling
screw.
- Minimum penetration of 3/8 inch (10 mm) beyond the
thickness of the nailing flange.
- Larger screws may be required by the ICF Manufacturer
based on the following minimum withdrawal requirements.
• Minimum withdrawal value of the ICF nailing flange must be
50 lbs. with a maximum 12 inches (305 mm) o.c. screw spacing.
• Minimum withdrawal value of the ICF nailing flange must be
31 lbs. with a maximum 6 inches (152 mm) o.c. screw spacing.
Alternative Fastening Options over Corrosion Resistant
Steel Stud Framing
• Minimum withdrawal value of the steel framing must be 50 lbs.
Refer to the framing manufacturer’s evaluation report.
• 38 Series Strand Substrate lap must be fastened with:
- Stud spacing a maximum spacing of 16 inches (406 mm) o.c.
- Minimum #8 hot-dip galvanized, tapered head, self-
drilling screw.
- Minimum of 5 threads beyond the combined thickness of
the siding and steel stud framing.
- Minimum steel framing thickness of 0.032 inch (8 mm) or
20 gauge.
• 76 Series Strand Substrate lap must be fastened with:
- Stud spacing a maximum spacing of 24 inches (610 mm) o.c.
- Minimum #8 hot-dip galvanized, tapered head, self-
drilling screw.
- Minimum of 5 threads beyond the combined thickness of
the siding and steel stud framing.
- Minimum steel framing thickness of 0.032 inch (8 mm) or
20 gauge.
CAUTION
• Do not force siding into place.
• DO NOT USE STAPLES.
• Climb cut the surface of the siding such that the rotation of the
blade cuts downward on the primed or prefinished surface.
• Where siding butts window trim, door casings and masonry,
etc. leave a 3/16 inch (5 mm) gap and seal.
Insulated Sheathings
LP SmartSide lap sidings may be installed over low-compression,
rigid foam insulation sheathing or exterior gypsum. The following
precautions must be followed:
• Adequate bracing of the wall in accordance with the
International Building Codes or other ruling building codes is
required.
• For rigid foam insulation sheathing up to 1 inch (25 mm) thick,
siding may be nailed directly to the foam sheathing unless
a drainage plane is required by the local building code. Nail
length must be increased to ensure a minimum 1-1/2 inch
(38 mm) fastener penetration into the structural framing.
• For rigid foam insulation sheathing greater than 1 inch (25 mm),
a minimum 1-1/2 inches (38 mm) thick by 3-1/2 inches (89 mm)
wide vertical strap or furring strip must be installed over the
sheathing to provide a solid level nailing base for the siding.
The strapping must be securely fastened to structural framing
spaced no greater than 16 inches (406 mm) o.c. with a minimum
nail penetration of 1-1/2 inches (38 mm) and a maximum nail
Snug
Flush
Visible fiber
Countersunk 1/16"- 1/8"
Countersunk more
than 1/8"
CONDITION CORRECTION
OK
Paint
Paint
Apply sealant
Apply sealant and
re-nail
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