Installation Instructions
TRIM & FASCIA 190, 440, 540 & 2000 SERIES
APPLICATION
INSTRUCTIONS
• Moisture control and moisture vapor control are critical elements of proper housing design and construction. Check your local building
codes for application procedures for handling moisture and water vapor in your area.
• Follow all applicable building code specications relating to prevention of moisture intrusion into the wall assembly. LP SmartSide trim
and fascia is a wood product, and, as with all wood products, must be kept free from excessive moisture. Lack of proper ventilation;
exposure to constant or repetitive sources of water such as sprinklers, condensation, inadequate ashing; improper sealing; or failure to
follow common building practices that prevent moisture intrusion into the wall system may cause damage, and products subject to such
treatment will be excluded from warranty coverage.
• As with all wood products, do not apply engineered wood trim and fascia to a structure having excessive moisture conditions such as dry-
ing concrete, plaster, or wet blown cellulose insulation. If such conditions exist, the building should be well ventilated to allow it to dry prior
to the application of the trim and fascia.
• Gutters with kick-out ashing and eave drip edge are recommended for control of roof water run o.
PREPARATION
MOISTURE CONTROL
• Apply nails to meet the specications in the General Application
Equipment section in this document. (See diagram 3c)
• For edge-nailing, all nail holes must be pre-drilled. Do not attempt to
edge nail without pre-drilling. (See diagrams 6e and 6f)
• Fastener length: Long enough to fully penetrate structural framing or
wood structural panels and structural framing a minimum of 1 inch.
(See diagram 4a)
• Fastener placement: 3/8 inch from ends and edges, when framing
support allows.
• Fastener spacing: Trim must be fastened with two nails at both ends,
with additional fasteners spaced a maximum of 24 inches o.c. along
the length of the board, or with two nails at both ends, with additional
fasteners spaced a maximum of 12 inches o.c. along alternating edges the
length of the board. (See diagram 4b)
• Fastener quantity: For trim under 7 inches wide use a minimum of 2
nails per width. For trim 7 to 12 inches wide use a minimum of 3 nails per
width. For trim over 12 inches wide use a minimum of 4 nails per width.
• Where edges of trim meet siding material, windows, doors or other
nished openings, leave a minimum 3/16 inch space to allow for proper
sealing. Provide increased spacing along the trim if specied by the siding
application instructions.
• Do not miter corner joints of band boards, fascia, corner trim, etc.
(See diagram 2e)
FASTENING INSTRUCTIONS
4b
4a
INSTALLATION
Caulked Butt Joint
Gap 3/16” and seal
24” max.
12” max.
12” max.
1”
or
4