Most siding pages talk in generalities — colors, warranties, curb appeal. This one is narrower on purpose. If you're a homeowner in Redington Shores looking at HardiePlank lap siding specifically, you've probably already ruled out vinyl (it doesn't hold up well against salt-laden wind off the Gulf) and you're trying to understand the actual product: what profile, what exposure width, whether lap or board-and-batten fits your house, and what ColorPlus prefinishing really buys you. That's what we're covering here — the details that separate a siding job that looks sharp and performs for decades from one that looks fine on installation day and starts showing problems by year three.
Alpine Exteriors installs James Hardie fiber cement exclusively — no vinyl, no LP SmartSide, no engineered wood. On a barrier island strip like Redington Shores, wedged between the Gulf of Mexico and Boca Ciega Bay, that's not a sales pitch. It's a material decision driven by what actually survives salt air, humidity swings, and Tropical Storm season without warping, delaminating, or feeding pests.
Redington Shores sits on a narrow Pinellas County barrier island — most lots are within a few blocks of either the Gulf or the Intracoastal Waterway, which means salt-laden air reaches every exterior wall on the island, not just the beachfront rows. Combine that with Tampa Bay's humidity, frequent wind-driven rain, and the annual run of tropical systems from June through November, and you get a siding environment that's tougher on materials than most inland Florida towns. Vinyl siding softens and can bow under sustained heat and UV here; wood-based products absorb moisture and swell. HardiePlank is engineered specifically to resist all three — it won't rot, it's non-combustible, and it's rated to withstand the wind-driven rain events that are routine on this stretch of coast.
Florida Building Code also matters here in a concrete way. Coastal Pinellas County falls under elevated wind-speed design requirements — homes near the water are commonly designed for 150+ mph wind loads — which affects fastener spacing, clearances, and how boards are secured at corners and openings. We install to those local wind-load requirements, not generic manufacturer minimums, because "close enough" siding is the first thing to fail in a named storm.
HardiePlank lap siding comes in a handful of surface textures, and the choice changes the whole character of the house — this is the decision homeowners spend the most time on, and rightly so.
None of these is objectively "better" — it's a match to your home's architecture and your own taste. We'll bring physical samples to your estimate so you're deciding in person, not off a screen.
"Exposure" is the reveal — how much of each board is visible once it's lapped over the one below. HardiePlank is manufactured in several widths, and the exposure you choose has a bigger visual impact than most homeowners expect before seeing it on a wall.
| Exposure | Board Width | Visual Effect |
|---|---|---|
| 5.25" | 8.25" board | Traditional narrow lap, more shadow lines per foot of wall — classic cottage look |
| 6.25" | 9.25" board | Most common residential exposure — balanced, versatile on most home styles |
| 7" | 9.25" board (HardiePlank HZ10) | Slightly bolder reveal, common on larger elevations |
| 8.25" | 11.25" board | Wide, contemporary reveal — fewer shadow lines, reads modern and clean from the street |
Narrower exposure generally suits smaller, older-style homes and produces a busier, more textured facade. Wider exposure tends to suit larger, more modern elevations where a cleaner, simplified look reads better from the road. We'll walk your specific elevations with you and talk through which reveal actually looks right on your house — not just which one's popular.
HardiePlank lap siding runs horizontally, board over board, and is by far the most common siding style in Redington Shores and along this stretch of coast. HardiePanel board-and-batten runs vertically — flat sheets with raised battens covering the seams — and shows up more as an accent than a whole-house treatment locally: gable ends, porch surrounds, garage faces, or a modern accent wall against horizontal lap on the main body.
The two aren't interchangeable in how they're detailed. Lap siding relies on consistent exposure and level starter courses to look right — any drift in the reveal is visible the length of the wall. Board-and-batten relies on plumb battens and correct panel spacing behind them for drainage. If your home has both (a common combination — lap on the body, board-and-batten on a gable or bay), the transition trim and flashing where they meet is where a lot of amateur installs go wrong. We detail those transitions the same way regardless of which side of the job it's on.
This is one of the more consequential decisions on a HardiePlank project, and it's worth understanding clearly.
ColorPlus is James Hardie's factory-applied finish — baked on in a controlled environment before the boards ever reach the site, with a color-matched caulk system and touch-up kit for the rare nick during handling. It resists fading better than field-applied paint, doesn't require repainting on the same schedule, and keeps a more uniform finish across the whole elevation because every board came off the same production run.
Field-painted (primed) HardiePlank arrives primed and gets painted on site after installation, in a color of your choosing from any paint line — more flexibility if you want a custom or unusual color, but it puts you on a normal exterior repaint cycle going forward, and coastal UV and salt exposure here will show wear on field paint sooner than it will on ColorPlus.
For most Redington Shores homeowners we work with, ColorPlus makes sense given how much UV and salt air this exposure sees — but if you've got a specific custom color in mind that isn't in the ColorPlus palette, primed boards with a quality marine-grade exterior paint is a legitimate path too. We'll lay out both honestly rather than push whichever is easier for us to install.
HardiePlank's long-term performance depends far more on installation than on the board itself — this is where corners get cut on a lot of jobs, and it's not visible until years later.
| Factor | Why It Matters |
|---|---|
| Exposure/profile chosen | Wider exposure uses fewer boards per square foot; texture (Cedarmill vs. Smooth vs. Beaded) is priced similarly but affects labor detail |
| ColorPlus vs. field-painted | ColorPlus carries a material premium but removes near-term repaint cost |
| Existing siding removal | Tear-off of old wood, vinyl, or stucco adds labor and disposal cost versus a clean substrate |
| Substrate condition | Rotted sheathing or water damage found underneath old siding needs repair before new boards go up |
| Wall complexity | Dormers, bump-outs, and multiple gables add cutting, flashing, and trim labor beyond flat wall footage |
| Trim and accent details | Board-and-batten accents, frieze boards, and corner trim styles add to scope beyond the base lap siding |
We give exact numbers at the in-person estimate, not before — every one of these factors changes based on what's actually on your walls right now.
Freshly installed HardiePlank needs very little from you. ColorPlus boards hold their finish without a maintenance schedule; caulked joints should be visually checked annually, which is easy to fold into a normal gutter-cleaning or storm-season prep routine. If you went with primed boards and field paint, plan on the same repaint interval you'd expect from any quality exterior paint job in a coastal environment — generally sooner here than it would be twenty miles inland. Either way, fiber cement won't develop the soft spots, insect activity, or moisture swelling that wood siding does on an island lot, which is a big part of why it's become the standard here.
If you're weighing HardiePlank lap siding for a home in Redington Shores and want to see profile and exposure samples against your actual house, we're happy to come out for a free, no-pressure estimate — no obligation, just a straight look at what fits your home and your budget.
Most single-family homes take one to two weeks from tear-off to final caulking, depending on wall complexity and whether substrate repair is needed underneath the old siding. Board-and-batten accents or multiple gables add time. Weather and permitting can shift the schedule, especially during storm season.
Confirm they're a James Hardie-certified or experienced fiber cement installer specifically, not a general contractor who occasionally does siding — fastening and flashing detail is where amateur installs fail first. Verify Florida licensing and insurance, and ask what fastener type they use in coastal exposure. Get the fastening and clearance details in writing, not just a verbal assurance.
Vinyl softens and can bow under sustained Gulf-side heat and UV, and engineered or wood-based sidings absorb moisture in this humidity and salt air, leading to swelling and rot over time. James Hardie fiber cement resists all three and is non-combustible. We'd rather install one product we trust completely than offer options we know underperform here.
HardieZone is Hardie's engineered-for-climate system — HZ10 is formulated for hot, humid, high-moisture regions and is the standard specification for Florida, including Pinellas County. HZ5 is intended for colder, drier northern climates and isn't what we install on any Alpine Exteriors project in this area.
Many Redington Shores lots fall in FEMA flood zones with base flood elevation requirements, which mostly affects elevated construction rather than siding itself, but it does inform the ground clearance we build in at the base of the wall. Coastal wind-load requirements under Florida Building Code have a bigger direct effect, driving our fastener spacing and schedule. We check your parcel's specific requirements before finalizing the install plan.