Installation Guide
application instructions (cont.)
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•
LP SmartSide 38 Series lap siding may be attached directly to
framing members spaced a maximum of 16 inches (406 mm) o.c.
• LP SmartSide 76 Series lap siding may be attached directly to
framing members spaced a maximum of 24 inches (610 mm) o.c.
• Check your local building codes before starting to install siding
to confirm if wood structural panel wall sheathing is required.
• Butt joints should be staggered over successive courses.
• Siding shall be installed with top (blind) nailing, with the nails
placed 3/8 inch (10 mm) from either end and a minimum of
3/4 inch (19 mm) from the top edge of the board. Fasteners will
be exposed on siding located immediately below window sills,
fascia boards, and horizontal trim. Fasteners below window sill
shall be spaced a maximum of 8 inch (203 mm) o.c.
• Overlap successive courses of siding a minimum of 1 inch (25 mm).
• Use a minimum 0.113 inch smooth shank diameter, hot-dip
galvanized nail.
- A minimum 0.092 inch smooth shank diameter nail may be
substituted depending on the wind pressure, wind speed
and wind exposure category limitations in APA Product
Report PR-N124 or ICC-ES Evaluation Report ESR-1301.
• Install kick-out flashing to direct the water into the gutter.
• Install step flashing with minimum 4 inch (102 mm) upper leg.
• Properly integrate flashing with the secondary water-resistant
barrier. Use housewrap, flashing tape, Z-flashing, or other
items as needed to maintain the counterflashing principle.
•
DO NOT extend the siding or trim into the kick-out flashing or gutter.
• Maintain a clearance between the end of the gutter and the
adjoining wall to allow for proper maintenance of the siding.
• Seal ALL exposed cut edges.
KicK-Out Flashing
LP Siding
Min. 1" clearance
between siding and roofing
Clean rain
gutter
Do not run siding or trim inside
of the kick out flashing
• Trim should be thick enough so the lap siding does not extend
beyond the face of the trim.
• Trim and fascia must be applied in a manner that will not allow
moisture intrusion or water buildup.
• LP® SmartSide® siding is not designed and/or manufactured
to be used as trim.
• Seal all exposed surfaces, including all drip edges or where
water will hang.
• Apply finish coat as soon as possible or within 180 days of
application.
• Follow the coating manufacturer’s application and maintence
instructions.
T
• For best results use a high-quality 100% acrylic exterior paint,
specially formulated for use on wood and engineered wood
substrates is highly recommended; oil paint is acceptable.
DO NOT USE:
• Stain.
• Vinyl-based paint (vinyl acetate or PVA).
SMOOTH FINISH Lap Siding:
• For best results use satin finish.
CEDAR TEXTURE Lap Siding:
• For best results use satin or semi-gloss finish.
PREFINISHED Lap Siding:
• Handle prefinished LP SmartSide lap siding with extreme care
during storage and application.
• Touch up any damage to finish that may occur during
application per the Prefinishers specifications.
3/4" nail
spacing
1" overlap
Self-aligning
rabbet
Install
SmartLock Lap
consistent with
specifications in
this document
SmartLock Lap
Blind Fastening
2
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