Installation Guide

Storage
UFP-Edge products must always be protected from the elements. Store product
under a covered area away from elements or cover with a breathable waterproof
cover that allows air to circulate. Material must also be kept off the ground and
on a level, stable surface. Protect the product from dirt, moisture, direct sunlight
and extreme heat. For better finished results, allow the material to acclimate to
the local climate.
Before Installation
• Ensure all applicable building codes are met.
• Do not install UFP-Edge products over wet building materials
and keep materials free from all sources of moisture.
Installation
• Cutting/Machining
The use of common woodworking tools is recommended. Power saws with
a carbide-tipped combination blade work best. Always cut into the finished
face for best results.
Note that all cuts or machined areas must be primed with a quality
primer/paint (see Paint section for further details).
• Caulk
Caulk is required anytime UFP-Edge trim intersects with other materials,
such as siding, windows or doors. Always use a high-quality exterior-grade
caulk that remains flexible and will move as the wood expands and contracts.
Never use hard-setting caulks.
• Joints
All joints must fall over a structural framing member and be primed and
caulked to prevent moisture intrusion. In areas prone to moisture, the use
of a water-resistance barrier flashing behind the joint is recommended.
For finished appearance, a 22.5-degree angle should be used, double nailing
on either side of the joint. Glue joints for the best finished appearance.
Do not nail any closer than ½” from the end of the material without drilling
a pilot hole to prevent splitting.
• Fastening
6d or 8d galvanized or other corrosion-resistant fasteners must be used.
Ring shank nails are preferred. Fastener length should be long enough to
penetrate a minimum of 1 ½” into structural framing.
UFP-Edge product must be fastened to structural framing, sheathing or other
materials. It must be double nailed at a maximum of 24” on center or stagger
nailed every 12” or less.
Nail heads must be driven snug with the surface of the material. Do not
overdrive or countersink fasteners. If nails are driven too far and wood fiber
is exposed, the area must be caulked or painted to seal the wood.
Fasten material from one end to the other. Do not nail from both ends
towards the center as this can create undue stress on the wood.
Tools needed
• Safety glasses
• Pencil or pen
• Smooth face hammer
• Pneumatic nail gun
• Square (speed square)
• Level
• Portable power saw
(miter saw)
• Fine tooth carbide tipped
saw blades
• High quality exterior primer
• Exterior grade paintable caulk
Primed Exterior Trim Installation Instructions
(Primed SPF, Premium Primed, UFP-Edge True)
Framing
½"
Joints
Butt Joint Scarf Joint
Fastening
6d or 8d
galvanized
fasteners
Stagger Nailed
6d or 8d
galvanized
fasteners
12"
2 fasteners
each end
2 fasteners
each end
24"
Double Nailed
Surface Nailing
Head of
fastener just
below surface
Nail driven
too far