Alpine Exteriors installs James Hardie fiber cement siding exclusively — no vinyl, no LP SmartSide, no engineered wood alternatives. That's not a marketing position, it's a decision built around what actually holds up in Pinellas County's climate. HardiePlank is cement, sand, and cellulose fiber pressed and cured into a board that doesn't expand and contract the way vinyl does in Florida's heat swings, doesn't feed termites or rot the way wood-based products can, and carries a factory finish system built for exactly this kind of humidity and UV exposure. When a Kenneth City homeowner asks us why we don't offer a cheaper vinyl option, the honest answer is that we've seen too many vinyl jobs warp, fade, and crack loose in wind events to put our name on that install.
This page is specifically about HardiePlank lap siding — the horizontal board product that's the backbone of most siding jobs we run in this neighborhood. If you're comparing profiles, exposure widths, ColorPlus versus field-painted finishes, or lap siding against board-and-batten, this is the detail you're looking for.
HardiePlank is James Hardie's lap siding line — individual boards installed horizontally, each one overlapping the board below it, running the full width of a wall. It's different from HardiePanel, which is a vertical sheet product typically used for board-and-batten applications, and different from HardieShingle, which mimics a cedar shake look. When someone in Kenneth City says "Hardie board" or "Hardie siding" in the general sense, they're almost always picturing HardiePlank — it's the classic lap look that matches the ranch and mid-century frame homes common throughout this part of Pinellas County.
Every HardiePlank board is engineered fiber cement — roughly 90% sand, cement, and cellulose fiber, autoclaved for dimensional stability. That construction is what lets it resist the freeze-thaw stress that isn't really our problem here, but more importantly for Kenneth City, it resists moisture absorption and the swelling/splitting that wood clapboard suffers under year-round humidity. It's also non-combustible, which matters to insurance underwriters and to us as installers who want a product that won't ignite from a stray ember during dry spring wildfire conditions.
HardiePlank comes in a handful of edge profiles and board widths, and the combination of those two choices changes the entire character of a home's facade. Getting this right is as much about matching the house's era and roofline as it is about personal taste.
"Exposure" is the visible portion of each board once it's installed and overlapped — not the full board width. HardiePlank ships in several nominal widths, most commonly giving you exposures around 4 inches, 5 inches, 6.25 inches, 7 inches, and 8.25 inches once lapped. A narrower exposure (4–5 inches) reads as more traditional and detailed — you see more shadow lines across the wall — and tends to suit smaller-scale homes or those with a lot of architectural trim. A wider exposure (7–8.25 inches) reads more contemporary and calmer, with fewer shadow lines, and works well on larger single-story homes where you don't want the facade to feel busy. We walk this decision on-site because photos and swatches never fully capture how exposure width reads against your specific roofline and window trim.
Lap siding and board-and-batten are both James Hardie products, but they're built and installed differently, and they send a different visual signal on a house.
| Factor | HardiePlank Lap | Board-and-Batten (HardiePanel + battens) |
|---|---|---|
| Orientation | Horizontal boards, overlapped | Vertical panels with battens covering seams |
| Look | Traditional, classic American exterior | Farmhouse, coastal, modern-rustic accent |
| Typical use | Whole-house primary siding | Gable accents, porch walls, whole-house on farmhouse-style builds |
| Install complexity | Straightforward, most common in our crews' daily work | Requires precise batten spacing and flashing at every seam |
| Water shedding | Natural lap overlap sheds water down and out | Relies on properly caulked/flashed vertical seams |
Most homes in Kenneth City are straightforward candidates for full lap siding, but we do see board-and-batten requested as a gable accent or a porch feature to break up an otherwise flat lap facade — a mixed approach that Hardie's product lines are specifically designed to support.
One of the most consequential decisions on a HardiePlank job is whether to order boards pre-finished with James Hardie's ColorPlus technology or install primed boards and field-paint after installation.
ColorPlus is a factory-applied, baked-on finish cured under controlled conditions — a process that produces more uniform color and better adhesion than anything achievable painting on-site, even by a careful crew. It comes with a longer finish warranty than field paint, resists fading better under sustained Florida UV, and touch-up paint is formulated to match the factory color exactly if a board ever gets scuffed. For most Kenneth City homeowners, ColorPlus is the better long-term value: fewer repaint cycles over the life of the siding, in a climate that's genuinely hard on exterior finishes.
Primed HardiePlank gives you full control over color choice beyond the ColorPlus palette, and it's the right call if you're matching an unusual existing trim color or want total flexibility to repaint down the road without waiting on a factory reorder. The trade-off is a shorter practical repaint cycle and more exposure to inconsistent coverage if the paint job isn't done meticulously.
We'll walk you through both during your estimate — for most straightforward color choices, ColorPlus wins on durability and long-term cost; for custom or unusual colors, primed and field-painted is sometimes the only path.
Fiber cement siding is only as good as its installation. A HardiePlank job done wrong — wrong nailing pattern, wrong clearance, missing flashing — will trap moisture and fail years early regardless of how good the board itself is. This is where we spend the most time on every job.
We follow James Hardie's published installation instructions to the letter, because deviating from them is exactly how a 30-year product ends up failing in eight.
Kenneth City sits inland from the Gulf beaches by just a few miles, tucked between Pinellas Park and St. Petersburg in central Pinellas County — close enough to coastal weather to catch salt-laden wind during storms, but not a direct barrier-island exposure. That combination matters for siding decisions. You're dealing with the humidity and moisture load of a coastal county, the intense summer UV of central Florida, and the wind-driven rain of a full hurricane season, without needing the heaviest coastal-grade wind ratings you'd spec for a Gulf-front property. HardiePlank's moisture resistance and non-combustible construction are built for exactly this kind of year-round humidity and storm exposure, and the finish system holds color under Pinellas County's sun better than anything wood-based.
Kenneth City's housing stock is largely post-war ranch and mid-century frame construction, with a fair number of homes that have had one or more prior siding jobs over the decades — sometimes vinyl over old wood clapboard, sometimes aluminum. When we tear into these walls we regularly find moisture damage hidden behind the old siding, which is why every HardiePlank install starts with an honest look at what's underneath, not just a re-skin over a problem.
A real HardiePlank estimate isn't a drive-by square-footage guess. We look at your current wall assembly, check for existing moisture damage, measure exposure and profile options against your home's roofline and trim, and talk through ColorPlus versus field-painted before we ever write a number down. If you're in Kenneth City and thinking about HardiePlank lap siding, we'll walk the house with you and give you a straightforward, no-pressure estimate — just use the form below to get started.
James Hardie is the company that pioneered fiber cement lap siding in the U.S. and holds the largest share of installations, but the real difference for homeowners is in the finish system and the engineering specs for regional climate — HardieZone products are formulated for the humidity levels we deal with here rather than a one-size-fits-all mix.
Ask whether they're a factory-certified Hardie installer, ask to see photos of completed lap siding jobs (not just panel or shingle work), and ask specifically how they handle flashing at windows and butt joints — that detail separates a job that lasts decades from one that fails in five years.
Yes, HardiePlank costs more upfront than vinyl, but it doesn't warp in heat, doesn't crack in wind-driven debris impacts the way brittle vinyl can, and holds paint and color far longer — over a 20-30 year ownership window it's typically the better value, not just the better-looking option.
It depends on what's underneath — sound, flat surfaces can sometimes be built over with proper furring, but we generally recommend removing old siding first so we can inspect the sheathing and wall assembly for hidden moisture damage, which is common on older Kenneth City homes that have already been re-sided once or twice.
Kenneth City is inland enough that you generally don't need the heaviest coastal wind-rated assemblies used on beachfront properties, but standard HardiePlank installed to manufacturer spec handles the salt air and wind-driven rain that reaches this part of Pinellas County without issue.