Largo sits in the middle of Pinellas County, between Clearwater and St. Petersburg, close enough to the Intracoastal Waterway that salt-tinged air reaches even the inland neighborhoods off Ulmerton Road and East Bay Drive. Add in a long, humid summer, near-daily afternoon thunderstorms, and a hurricane season that runs June through November, and you've got a climate that's genuinely hard on exterior siding. A lot of Largo's housing stock dates to the 1960s and '70s ranch-home boom, with newer infill and renovations mixed in along Belleair Bluffs and the Highland Groves area. Whatever era the house, the siding on it has to handle wind-driven rain, UV exposure, and swings between soaking humidity and baking sun without cupping, rotting, or fading out in a few seasons.
That's why Alpine Exteriors installs James Hardie fiber cement exclusively — specifically HardiePlank lap siding for the vast majority of Largo homes. We don't offer vinyl or engineered wood siding, and that's a deliberate standard, not a sales pitch. Vinyl softens and warps in direct summer heat and doesn't hold paint well if you ever want to change color. Engineered wood products are more moisture-sensitive at the core, which matters in a climate where a house can sit at 85% humidity for weeks at a stretch. Fiber cement doesn't expand and contract the way vinyl does, doesn't have a wood core to swell, and carries a factory finish designed to survive intense sun. This page focuses specifically on HardiePlank lap siding — the profiles, the exposure choices, how it compares to board-and-batten, and what correct installation actually looks like on a Largo home.
HardiePlank isn't one product — it's a lap siding board that comes in a handful of surface textures, and the texture changes the whole character of the house. The right choice usually comes down to the age and style of the home more than personal taste alone.
This is the most common choice we install in Largo. It has a subtle wood-grain texture that reads as traditional lap siding from the street but isn't so heavily grained that it looks fake up close. It suits the ranch and traditional two-story homes that make up most of the city.
A flat, grain-free surface. This reads more modern and is a strong match for newer construction, coastal-contemporary remodels, or homes that pair siding with clean-lined trim and larger windows. Smooth also shows shadow lines from the lap exposure more crisply, since there's no texture competing with them.
Each board has a small routed groove along the bottom edge, creating a defined shadow line even before the boards are installed with their normal overlap. It's a classic look that works well on cottage-style and coastal homes, and it's popular for accent areas like porches even when the main field of the house uses Select Cedarmill.
A deeper, more pronounced wood-grain texture than Select Cedarmill. It's less common in Largo but shows up on homes going for a more rugged, farmhouse-adjacent exterior.
"Exposure" (also called reveal) is the amount of each board left visible after the next board overlaps it — essentially, how wide each horizontal stripe of siding reads on the wall. HardiePlank is manufactured in different widths specifically so installers can set different exposures, and this is one of the most overlooked decisions homeowners make.
A narrower exposure, in the 4" to 5" range, creates tighter, more frequent shadow lines. It reads as traditional and detailed, and it's a good match for smaller-scale ranch homes where you don't want the siding pattern to overwhelm the facade. A wider exposure, 7" up to 8-1/4", creates bolder, more spread-out lines that suit larger homes, two-story facades, and more contemporary designs where a cleaner, less busy surface is the goal. Exposure also has a practical side: wider exposure means fewer courses of siding and fewer horizontal seams over the height of the wall, which some homeowners prefer for a simpler look, while narrower exposure gives a more classic, tightly detailed appearance. We walk Largo homeowners through both a photo comparison and a sample board on the actual house before locking in exposure — it's much easier to judge in person than from a picture.
HardiePlank lap siding runs horizontally, with each board overlapping the one below it. It's the siding most people picture when they think "siding" — it's versatile, it suits nearly every home style in Largo, and it's what we install on the large majority of full-house projects. Board-and-batten is a different product entirely: vertical panels with narrow battens covering the seams between them, giving a more modern farmhouse or coastal-cottage look.
| Factor | HardiePlank Lap Siding | Board-and-Batten |
|---|---|---|
| Orientation | Horizontal boards, overlapping | Vertical panels with cover battens |
| Best suited to | Ranch homes, traditional two-story, most Largo housing stock | Gable accents, porches, modern farmhouse or coastal remodels |
| Visual effect | Classic shadow-line pattern, widely familiar | Bolder vertical lines, reads as an accent or full-modern statement |
| Common use in Largo | Whole-house siding | Gable ends, entry surrounds, mixed with lap on the field |
Plenty of the projects we do in Largo aren't strictly one or the other — a home gets HardiePlank lap siding across the main body and board-and-batten on a gable or a porch accent to break up a long, flat facade. Both are fiber cement, both come in the same ColorPlus finishes, and both hold up the same way in our climate, so the decision is almost entirely about the look you want rather than performance trade-offs.
Largo gets intense, near-constant UV for most of the year, and that's brutal on field-applied paint. ColorPlus is James Hardie's factory finishing process: multiple coats baked on and cured under controlled conditions before the siding ever reaches the jobsite, rather than a single coat of paint rolled or sprayed on-site after installation. The result holds color and resists fading noticeably longer than standard field-painted siding, and it resists chipping and scratching better too, since the finish is baked into the board rather than sitting on top of it.
There are practical installation benefits as well. ColorPlus boards ship with color-matched touch-up paint and color-matched caulk, so seams, cut ends, and any minor nail touch-ups blend in rather than standing out as a different shade. For a Largo homeowner, that matters most on south- and west-facing walls, which take the harshest afternoon sun — those are the elevations where field-painted siding fades fastest and unevenly, and where ColorPlus earns its keep. James Hardie backs the finish with its own limited warranty separate from the substrate warranty, covering fade and film integrity over time.
Fiber cement siding is only as good as the installation behind it, and this is where a lot of the real performance difference shows up — not in the board itself, but in the details most homeowners never see once the job is done.
HardiePlank needs to be nailed per James Hardie's published fastening schedule — correct nail type, correct placement relative to the board edge, and correct spacing. Boards also need a small gap where they meet trim and at butt joints, sized to the manufacturer's spec, so the material has room to move slightly without buckling.
A proper water-resistive barrier goes behind the siding, with flashing integrated at every window, door, and roofline intersection so water is directed out and down rather than behind the boards. Kick-out flashing at roof-to-wall intersections is a detail we treat as non-negotiable — its absence is one of the most common causes of hidden rot we find behind old siding on Largo teardowns.
Siding needs proper clearance from the ground, roofline, and any hard surfaces like patios or driveways so it isn't sitting in standing water after a summer downpour. Joints and penetrations get sealed with a quality sealant compatible with ColorPlus finishes, not just whatever caulk happens to be on the truck.
A level starter strip at the base sets the line for every course above it, and corners get either factory corner boards or a mitered detail, both installed to keep water from tracking in at the seam. Small errors here compound — a slightly out-of-level starter course throws off every board above it by the time you reach the roofline.
One reason we steer every Largo customer toward fiber cement is how little it demands once it's up. HardiePlank doesn't rot, and it's not a food source for termites, which matters in a region where subterranean termites are a genuine concern for wood-adjacent materials. It won't warp or ripple in high heat the way vinyl can, and it holds up to wind-driven rain during tropical storms and hurricanes far better than lighter cladding, which is part of why it's become the standard siding choice across Central Florida over the last two decades.
Upkeep is straightforward: an annual rinse-down with a garden hose (not a pressure washer aimed directly at seams), a walk-around after major storms to check for impact damage or loose caulk, and recaulking joints if you notice separation, usually well over a decade out. Because ColorPlus is factory-cured, you're not on a repaint cycle the way you would be with field-painted siding — that's a real cost and time savings over the life of the siding, particularly for homeowners who'd rather not deal with an exterior repaint every several years.
Because so much of a HardiePlank installation's long-term performance is hidden behind the boards, the contractor matters as much as the product. Before signing anything, it's worth confirming a few basics:
If you're weighing HardiePlank for a Largo home — whether it's a full re-side, storm damage repair, or a board-and-batten accent on an existing house — we're happy to walk the property, talk through profile and exposure options with real samples, and put together a straightforward, no-pressure estimate. There's a form just below this page to get that conversation started.
Most single-story Largo homes take roughly one to two weeks from tear-off to final caulking and cleanup, depending on square footage, weather delays, and how much trim or repair work is needed underneath the old siding. Two-story homes or projects with extensive rot repair can run longer. We give a project-specific timeline as part of the estimate, not a generic range.
Ask for their Florida contractor license number, proof of liability and workers' comp insurance, and a written scope that spells out fastening, flashing, and weather barrier details rather than just "install siding." Also ask whether they follow James Hardie's published installation instructions, since incorrect installation can void the manufacturer's warranty regardless of who did the work.
It's our professional standard based on how each material handles Florida's heat, humidity, and storm exposure. Vinyl can soften and warp in direct sun and limits future color changes, while engineered wood has a more moisture-sensitive core; fiber cement holds its shape, takes a durable factory finish, and doesn't give termites anything to eat. We'd rather install one product well than offer options we don't fully stand behind.
Select Cedarmill has a subtle wood-grain texture that reads as classic lap siding and suits most traditional and ranch-style homes. Smooth is flat and grain-free, giving a cleaner, more modern look that shows off shadow lines from the board exposure more sharply — it's a common pick for newer or contemporary-styled homes.
Yes — it's the reason fiber cement has become the standard siding choice across Pinellas County over the last two decades. It doesn't rot, warp, or provide a food source for termites, resists wind-driven rain during tropical storms, and the ColorPlus factory finish resists fading better than field-applied paint under Largo's near-constant summer UV.