LP SmartSide engineered wood siding installed in Spokane by Domex Construction. Impact-tough, winter-ready. Free estimates.
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The three walls we install most, with the tradeoffs stated plainly.

Material: Fiber cement
Best For: Maximum durability & fire safety
Maintenance: Repaint roughly every 15+ years
Fire Rating: Class A, noncombustible
Rot & Pests: Immune to both
Warranty: 30-year limited (manufacturer)
Cost: $$$

Material: Engineered wood
Best For: Wood look, hail & impact resistance
Maintenance: Repaint every 10 to 15 years
Fire Rating: Standard combustible cladding
Rot & Pests: Treated against both
Warranty: 5/50-year prorated (manufacturer)
Cost: $$

Material: PVC
Best For: Budget projects & rentals
Maintenance: Wash it; never paint it
Fire Rating: Melts near heat sources
Rot & Pests: Immune; can crack in deep cold
Warranty: Varies; often lifetime limited
Cost: $
We install all of the above and will tell you which fits your house, honestly.
LP SmartSide is wood rebuilt to fix wood's weaknesses. Wood strands are treated with zinc borate and wax — LP's SmartGuard process — bound with resin, pressed into boards under heat, and faced with a resin-saturated overlay that holds paint. What comes out takes a hit better than fiber cement, works easily in freezing weather, and carries a deeper cedar-grain texture than most competing products. It also has one installation detail that decides whether it lasts decades or fails early, and most of this page is about being honest on both counts.
Domex Construction installs LP SmartSide across Spokane and the surrounding hundred miles. We're also a James Hardie Preferred Contractor, so a SmartSide recommendation from us is a judgment between two products we install — not the only board on the truck. Washington license DAVYDCI833NC, fully insured, free estimates.
Impact resistance. Strand-engineered wood flexes where fiber cement chips. Hail, gravel kicked up by a mower, an errant baseball off the garage wall — SmartSide takes strikes that leave fiber cement with crescent-shaped fractures. On open lots along the Rathdrum Prairie or down the Spokane Valley wind corridor, where wind-driven debris and the occasional hail cell are part of ownership, that toughness is the strongest argument for the product.
Cold-weather workability. SmartSide is lighter than fiber cement, cuts with ordinary wood tools, and fastens cleanly in freezing temperatures. That keeps winter re-sides on schedule and lets a two-person crew handle long boards without cracking corners — one reason we quote SmartSide jobs confidently for January starts.
Fewer seams. Lap boards come in 16-foot lengths against fiber cement's 12. On a long Valley ranch wall that's roughly a third fewer butt joints, and joints are the first place any siding shows its age in freeze-thaw country.
Finish options. SmartSide installs primed for field paint, or in LP's ExpertFinish line with factory-applied color — worth considering here, since a factory finish goes on in controlled conditions rather than between Spokane's paint-season weather windows.
SmartSide is wood-based, so it burns. The treatment doesn't change that, and fiber cement's non-combustibility is the deciding factor for homes backing timber — our James Hardie page covers that side of the choice. SmartSide also depends on its paint film: keep the film intact and the substrate stays protected; let it chalk through and water reaches the strands.
The detail that actually decides longevity is edge sealing. Every field cut exposes untreated strand core, and every one of those cuts must be primed or sealed before the board goes on the wall. Water that enters an unsealed cut edge freezes, expands, and swells the board from the inside — the classic engineered-wood failure, and in our tear-off experience it's nearly always an installation failure rather than a product failure. Spokane's shoulder seasons run freeze-thaw cycles for weeks at a stretch, so a crew that skips sealing cuts is quietly deciding how the siding fails ten years out. Ours don't skip it, and you're welcome to watch.

Material day: siding staged, counted, and inspected before tear-off starts.
Exposed lot with hail and debris risk, winter install window, or long walls where seams would multiply: SmartSide has the edge. Wildfire exposure or a set-and-forget factory finish as the priority: fiber cement. We install both, and the estimate visit is where we make the case for one.
With sealed edges, correct flashing, and a maintained paint film, it's a multi-decade product — freeze-thaw is what kills engineered wood, and disciplined installation is what removes freeze-thaw from the equation.
Honestly, no — it's wood-based and combustible. For homes on the wildland edge or anywhere ember exposure drives the decision, fiber cement is the non-combustible pick and we'll steer you there.
Field-painted SmartSide follows a normal repaint cycle for this climate, with south- and west-facing walls weathering first. ExpertFinish pushes that horizon out. Either way, the paint film is the product's raincoat — budget for its upkeep.
LP publishes a long product warranty on SmartSide; current terms are on LP's site and we'll walk through them at the estimate. Ask about our workmanship warranty as well.
We install SmartSide throughout Spokane, Spokane Valley, Liberty Lake, Mead, Cheney, Airway Heights, and Deer Park, plus Coeur d'Alene and Post Falls under our Idaho license. Washington license DAVYDCI833NC — verifiable through the WA Department of Labor & Industries contractor lookup.
Thinking engineered wood for your re-side? Free on-site estimates across greater Spokane. Give us a call or request an estimate online.
