Alpine Exteriors installs James Hardie fiber cement siding and nothing else. Not because we're paid to say that — because after years of siding work on Pinellas County's barrier islands, it's the only product we've found that consistently holds up to what Redington Shores throws at a house: salt-laden air off the Gulf, driving summer rain, humidity that never really lets up, and the real possibility of a tropical system every June through November. We don't carry vinyl, LP SmartSide, or engineered wood panels. This page is about the brand itself — what James Hardie actually makes, how ColorPlus finishes work, what the 30-year warranty covers, and why that matters more here than almost anywhere else in Florida.
"Hardie siding" isn't one product — it's a family of fiber cement building materials, and picking the right one depends on the style of home and where on the property it's going.
The classic horizontal board look, available in several exposure widths and profiles (Select Cedarmill, Smooth, Beaded). This is what covers most of the single-family homes and beach cottages along the Redington Shores side streets — it reads as traditional coastal siding without the maintenance headache of real wood.
Used for board-and-batten style facades, gable accents, and porch details. We see this a lot on the newer, more modern rebuilds going up closer to Gulf Boulevard, often paired with HardiePlank on the lower body of the house.
A staggered or straight-edge shingle profile for homes going for a beach-cottage or Cape Cod look. It gives the shingle texture homeowners want without the rot risk of cedar shakes in a salt-air environment.
Fiber cement trim boards for corners, window and door casings, fascia, and frieze boards, plus soffit panels for the underside of eaves. Matching trim material to the field siding matters more than most homeowners realize — mixing a fiber cement wall with a wood or PVC trim package is where a lot of "why is my trim rotting but not my siding" calls come from on other houses we've been asked to fix.
Standard fiber cement siding ships primer-ready and gets field-painted after installation. ColorPlus is James Hardie's factory-applied color system, and it's the piece of the product that homeowners notice least going in and appreciate most five years later.
ColorPlus finishes are baked onto the board in a controlled factory environment, in multiple coats, before the siding ever reaches the site. That process bonds the color to the substrate more evenly than a brush-and-roller job ever can, and it means the color is consistent board to board — no batch variation, no lap marks from a painter working in Florida heat and humidity.
The practical upside is fade resistance. UV exposure off the Gulf is intense, and a field-painted house in this area often needs a repaint within five to seven years just to keep its color from chalking or going patchy. ColorPlus-finished Hardie siding is warranted separately for finish performance, and in our experience it holds true color noticeably longer than site-applied paint on any substrate. Touch-up paint is available color-matched to each ColorPlus shade for the rare ding or scratch, so a small repair doesn't turn into a mismatched patch.
James Hardie backs its siding products with a non-prorated 30-year limited warranty, and ColorPlus finishes carry their own separate finish warranty. A few points worth understanding plainly, since warranty language gets glossed over more often than it should:
We register every installation with James Hardie so the warranty is on file under your name from day one — not something you have to track down documentation for later.
Redington Shores is a narrow barrier island — Gulf Boulevard runs the spine of it, Gulf-front lots on one side, Intracoastal-facing homes on the other, and the whole town sits close enough to saltwater that airborne salt reaches every structure regardless of which side of the road it's on. That's a genuinely harder environment for exterior materials than most of inland Pinellas County.
| Factor | What It Does To Siding | How Hardie Handles It |
|---|---|---|
| Salt air corrosion | Accelerates fastener and trim degradation on materials sensitive to moisture intrusion | Fiber cement doesn't corrode; we pair it with stainless or hot-dip galvanized fasteners |
| High humidity, year-round | Promotes rot, mold growth, and swelling in wood and engineered wood products | Cement composition doesn't absorb moisture the way wood fiber panels do |
| Intense UV exposure | Fades paint and can make vinyl brittle or warped over time | ColorPlus factory finish is engineered for extended color retention |
| Wind-driven rain, storm season | Pushes water behind poorly flashed siding systems | HZ5 engineered product plus correct flashing and clearance details |
| Hurricane-force wind events | Tests fastening pattern and panel rigidity | Installed per Hardie's wind-zone fastening spec for coastal Florida |
James Hardie manufactures a version of its product line, HardieZone HZ5, specifically engineered for regions with the combination of moisture and temperature swings found along the Gulf Coast. It's not a generic national product we're bolting onto a Florida house — it's built for exactly this climate.
James Hardie invented modern fiber cement siding and has been the category leader in North America for decades, which matters practically, not just as a marketing point. It means the product has a long installed track record in coastal markets, a manufacturing and QA process mature enough to hold tight tolerances board to board, and a widely available supply chain — if a board is ever damaged years down the road, we're not hunting for a discontinued product to match it. That track record is part of why we made the call years ago to install James Hardie exclusively rather than carrying a lower-cost alternative alongside it. A house on Gulf Boulevard doesn't get a second chance if the siding underneath fails quietly for a few years before it shows.
Every house on the island is a little different — Gulf-front homes take more direct salt spray and wind-driven rain, while Intracoastal-side and interior-street homes deal more with ambient humidity and afternoon storm exposure. Older beach cottages built decades ago often have narrower wall cavities and different flashing details than the newer builds going up now, and that changes the install approach even when the same James Hardie product is going on both.
If you're weighing siding options for a Redington Shores home, we're glad to walk the property, talk through which James Hardie product line fits your house, and give you a straightforward, no-pressure estimate — just fill out the form below.
James Hardie manufactures its own fiber cement rather than licensing a formula, and it's engineered in climate-specific versions like HZ5 for humid coastal regions. Other fiber cement brands exist, but Hardie's factory finish system and decades-long track record in Gulf Coast markets are why we standardized on it exclusively.
James Hardie maintains a "Preferred Contractor" and "Elite Preferred" network, and you can look up certified installers directly through James Hardie's own contractor locator rather than taking a company's word for it. Certification matters because improper installation can affect whether the manufacturer's warranty actually applies.
Not for years — that's the point of the factory-baked finish. Eventually, decades out, a homeowner may choose to repaint for a color change, but ColorPlus is designed to outlast standard field-applied paint by a wide margin, which is a real cost savings over the life of the siding.
Fiber cement siding itself doesn't have a hurricane wind rating the way a window or door assembly does, but James Hardie's HZ5 product line and Hardie's published fastening specifications for high-wind coastal zones are what we follow to keep the panels secured through storm-season wind loads. The house's overall wind resistance also depends on sheathing, house wrap, and fastening — not siding material alone.
Vinyl can warp, fade, and crack under sustained UV and salt exposure faster than fiber cement, and on a barrier island that exposure is constant rather than occasional. We'd rather install one product we can stand behind for 30 years than offer a cheaper option now that becomes a homeowner's problem in year eight.