Guide
Product Guide RISE Siding

RISE 5/4 x 8 inch x 13'4″ Trim

RISE 5/4 x 8 inch Trim solves the joint problem that standard 10-12 foot trim can’t touch. At 13 feet 4 inches, this recycled composite trim matches exactly 10 studs at 16-inch on-center framing — contractors cut field joints by a third compared to typical trim lengths. Made from 94% post-consumer and post-industrial synthetic fiber, it handles Montana’s freeze-thaw punishment without the rot, cracking, or warping that kills wood trim in 15-20 years.

This trim shines for contractors tired of callbacks from failed wood trim, builders meeting green certification requirements, and anyone working near grade where moisture destroys traditional materials. The ground contact rating alone changes what’s possible for foundation trim and transition details.

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Material Composition and Environmental Impact

The 94% recycled content breaks down into polyester, nylon, and fiberglass sourced from post-consumer and post-industrial waste. Those fibers come from recycled carpets, vehicle liners, insulation, and wind turbine blades — industrial waste streams that typically end up in landfills.

SpecificationValueSource
Recycled Content94%Manufacturer
Material TypePolyester, nylon, fiberglass blendManufacturer
Warranty Duration30-Year LimitedManufacturer
Ground Contact RatingYes (incidental soil or masonry contact)Manufacturer

The material resists rot, freeze-thaw cycles, heavy rain, and snow. Standard woodworking tools cut, nail, and screw it like wood, but without wood’s maintenance headaches. A dual water protection barrier on both sides keeps moisture from penetrating the substrate.

Installation Requirements and Specifications

Installation demands precision on fastening — minimum 1-1/4 inch penetration into framing using 8d trim nails or 7d trim screws. Simpson Strong-Tie 2 1/4” screws work perfectly for this application.

Installation SpecRequirement
Fastener Type8d trim nails or 7d trim screws
Minimum Penetration1-1/4 inch into framing
Fastener Spacing (studs)16 inches on-center
Fastener Spacing (sheathing)12 inches on-center
Fasteners for 8” width2 fasteners
Fasteners for >8” width3 fasteners

Temperature matters for joint spacing. Leave a 3/16-inch gap at butt joints when installing below 60°F, or 1/8-inch gap at 60°F and above. This prevents buckling during Montana’s temperature swings.

Maintain 4 inches clearance above landscaping and 1/2 inch above finished surfaces like decks or roofs. Even with ground contact rating, proper clearances extend service life.

Interior view of aisle 13 in the Western Building Center Columbia Falls store, showing tools and hardware department

The 13’4” Length Advantage

At 160 inches total length, this trim optimizes for 16-inch on-center stud spacing. One piece covers exactly 10 studs. Compare that to standard 10-12 foot trim lengths — contractors eliminate 33% of field joints on a typical job.

Fewer joints mean:

  • Less cutting and fitting time
  • Reduced caulk and sealant costs
  • Fewer failure points for moisture infiltration
  • Cleaner sight lines on long runs
  • Minimal waste from the 13-foot lengths

For Montana’s short building season, that efficiency translates directly to more jobs completed before freeze-up.

Interior view of the checkout area at Western Building Center showing the customer service counter with two employees working

Performance Comparisons

Against traditional trim materials, RISE delivers specific advantages:

  • More durable, rot-proof, and lower maintenance than wood trim
  • Superior moisture resistance and ground-contact capability versus OSB trim
  • Easier to cut/handle, less breakage, and longer lengths than fiber cement
  • Provides a more natural wood aesthetic and feel compared to PVC trim

The material comes in textured (wood-grain) or smooth finishes, either factory-finished (ColorRISE) or primed for field painting. Despite being lightweight for easier handling, it provides high resistance to breakage and cracking compared to fiber cement.

Interior view of a Western Building Center store showing the customer service counter and checkout area

Frequently Asked Questions

Q: Can RISE trim actually touch the ground? A: Yes, it’s rated for incidental ground contact with soil or masonry. Ground Contact versions include a protective water barrier. Still maintain 4-inch clearance above landscaping for best results.

Q: How does the 94% recycled content affect performance? A: The polyester, nylon, and fiberglass blend creates a composite that’s resistant to rot, freeze-thaw cycles, heavy rain, and snow. The synthetic fibers provide high resistance to impacts, denting, and weathering.

Q: What tools do I need for installation? A: Standard woodworking tools handle cutting, nailing, and screwing. No special blades or bits required. Use 8d trim nails or 7d trim screws for fastening.

Q: Is the 13’4” length hard to transport? A: The material is described as lightweight, making 13-foot pieces manageable. Most contractor trucks and trailers handle this length without issue.

Q: What about thermal expansion? A: RISE exhibits minimal expansion and contraction. Follow the temperature-based gap specifications: 3/16” below 60°F, 1/8” at 60°F and above.

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