Installation Instructions

TRIM & FASCIA 190, 440, 540 & 2000 SERIES
INSTALLATION
• Butt joints: Ends and butt joints require a 3/16 inch (5 mm)
space and seal with a high quality non-hardening paintable
long-life sealant. Joints may lightly touch around windows and
doors only. Butt joints require four (4) nails with two nails on
either side of the joint at each edge. (See diagrams 4a, 5a and 5b)
GENERAL REQUIREMENTS (CONTINUED)
Alternative Fastening Option - Trim Nails
• Common or box nails provide superior resistance to fastener pull-through. In Hurricane-Prone Regions or locations where
negative wind loads are a concern, box or common nails should be used. Trim nails may be used in other locations with
the following cautions: Do not overdrive or counter sink the fastener, nail ush with the surface of trim. Trim nails shall be
installed per the length, placement, spacing and quantity requirements listed in this document. Detachment of trim is not
covered by the LP SmartSide limited warranty whether common, box, or trim nails are used.
Alternative Fastening Option over Wood Structural Panels - Sheathing Only Attachment:
• Wood structural panels must be a minimum 7/16 Category with an APA Trademark that contains the consensus Standard
DOC PS 1 or PS 2.
• Fastener Type:
− Ring-shank nail
− Hot-dipped galvanized (ASTM A153) or equal
− Shank diameter = 0.092 inch
• Fastener Length:
− Fastener shall be long enough to fully penetrate through wood structural panel sheathing and extend by at least
1/4 inch (6 mm).
• Fastener Placement and Quantity:
− Must be consistent with the LP® SmartSide® Trim and Fascia Application Instructions.
• Strictly adhered to all other aspects of the LP® SmartSide® Trim and Fascia Application Instructions.
• Detachment of trim is not covered by LP SmartSide limited warranty whether fasteners penetrate studs or sheathing only
attachment is used.
Alternative Fastening Option - Attaching Trim as Batten Strips
• Attachment of trim as batten strips where the trim is unable to be attached into wood structural panels and structural
framing a minimum of 1 inch (25 mm) will require additional support from a construction adhesive. First, use hot-dipped
galvanized ring-shanked nails no smaller than 0.092 inch shank diameter to attach the trim suciently to secure the trim
to the structure while the construction adhesive completes its curing process. Second, use an exterior grade construction
adhesive that meets the following specications.
Construction Adhesive Specications:
− Minimum bond strength: 300 psi
− Minimum application temperature: 40° F
− Paintable grade
Alternative Fastening Option - Installing Over Insulated Sheathings
LP SmartSide Trim and Fascia may be installed over low-compression rigid foam or exterior gypsum.
The following precautions must be followed:
• Adequate bracing of the wall in accordance with the International Codes or other ruling building code is required.
• For rigid foam sheathing up to 1 inch (25 mm) thick, trim 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 inches (38 mm)
fastener penetration into the structural framing.
• For rigid foam sheathing greater than 1 inch (25 mm) thick, a minimum 1-1/2 inches (38 mm) thick by 3-1/2 inches (89 mm)
wide vertical strapping or furring strip must be installed over the sheathing to provide a solid, level nailing base for the
trim. The strapping must be securely fastened to structural framing spaced no greater than 16 inches o.c. (406 mm) with a
minimum nail penetration of 1-1/2 inches (38 mm) and a maximum nail spacing no greater than the width of the siding.
Louisiana-Pacic assumes no responsibility for any damage or condition arising from the use of rigid foam or exterior gypsum.
5b5a
Fastening Instructions (continued)
3/8” from
ends and edges
3/16” Space
Do not use scarf joints
LP SmartSide Trim & Fascia
5