Allura Is a Real Fiber Cement Product — Let's Start There
We're not going to pretend Allura is a bad product, because it isn't. Allura Fiber Cement (formerly Plycem) makes a genuine fiber cement lap siding, panel, and trim line that meets the same basic category requirements as James Hardie: it's non-combustible, it resists termites and rot better than wood, and it holds paint far longer than vinyl. If a homeowner in Sarasota County shows us an Allura product sheet, we're not going to tell them it's junk, because that wouldn't be honest.
What we will tell them is why, after years of installing and repairing siding across the Gulf Coast, our crews standardized on James Hardie and stopped bidding Allura jobs. It isn't about brand loyalty. It's about what we've seen hold up on real roofs and walls in Sarasota's specific combination of salt air, UV load, and wind-driven rain, and about the manufacturing and support infrastructure standing behind the product once it's on your house.

Where the Two Products Actually Diverge
Manufacturing Footprint and Consistency
James Hardie built its fiber cement business in North America starting in the 1980s and has spent decades refining its formulation, curing process, and factory-applied finish specifically for the range of American climates, including humid, high-UV, coastal environments like ours. Allura's manufacturing history in the U.S. market is shorter, and its distribution network in Florida is thinner. That matters less on the day of installation and more five, ten, fifteen years down the line, when you need a matching replacement plank after a storm, a warranty claim processed, or a color-matched piece for a repair.
Climate Engineering
Hardie's HZ5 product line was engineered specifically for high-humidity, hurricane-prone regions — it's not a generic fiber cement board with a regional sticker slapped on. Allura offers a general fiber cement formulation without the same publicly documented, climate-zone-specific engineering data. For a house in Sarasota, sitting in a HVHZ (High-Velocity Hurricane Zone) coastal county, that difference in engineering rigor is exactly the kind of detail we don't want to gamble a customer's siding investment on.
What Sarasota's Climate Actually Does to Siding
This isn't an abstract argument. Anyone who has worked exteriors in Sarasota County for more than a season has watched the same failure patterns repeat themselves:
- Salt air corrosion: Coastal and near-coastal homes get a steady drift of salt aerosol that accelerates the breakdown of lesser factory finishes and attacks fasteners that aren't rated for it.
- UV degradation: Florida gets some of the most intense, most consistent year-round UV exposure in the continental U.S. Paint systems that aren't baked on with a real factory process chalk and fade faster here than almost anywhere else.
- Wind-driven rain: Sarasota's storm pattern doesn't just rain down — rain gets driven sideways into laps, seams, and butt joints under wind pressure, which punishes any siding system with sloppy water-management detailing.
- Hurricane-force wind loads: Every board on the wall needs a nailing pattern, fastener spec, and product rating that's actually been tested for wind uplift, not just assumed to be "good enough."
Fiber cement as a category handles all four of these better than wood, vinyl, or engineered wood siding. But within the fiber cement category, the quality of the factory finish, the fastener compatibility, and the documented wind and moisture testing are what separate a board that looks good for five years from one that looks good for thirty.
Factory Finish: Where a Lot of the Real Difference Lives
Both Hardie and Allura offer factory-applied finishes rather than requiring field painting, which is good — field-applied paint on fiber cement is one of the most common causes of premature fading and peeling we get called out to fix. The difference is in the finish system itself. Hardie's ColorPlus technology is a baked-on, multi-coat finish system with a documented, published warranty specifically covering finish performance — fade, chip, and peel — separate from the substrate warranty. That's a warranty structure we can explain to a homeowner in plain terms and stand behind.
Allura's finish options are less consistently documented across its product literature in terms of a distinct, standalone finish warranty. That gap doesn't mean the finish is bad. It means that when a homeowner asks us "what happens if the color fades in eight years," we can give a precise answer for Hardie and a vaguer one for Allura — and we don't like giving vague answers about a siding job we're putting our name on.
Side-by-Side: Factors That Matter Most in Coastal Florida
| Factor | James Hardie | Allura |
|---|---|---|
| Climate-specific engineering (HVHZ / HZ5) | Published, zone-specific product line | General fiber cement formulation |
| Factory finish warranty | Separate, published finish warranty | Less standardized documentation |
| Local distribution / matching stock | Deep Florida distributor network | Thinner regional stock, longer lead times |
| Fastener and installation documentation | Detailed, region-specific install guides | General install guidance |
| Transferable warranty on resale | Documented transfer process | Less commonly used in resale disclosures |
Installation Sensitivity: Why the Installer Matters as Much as the Board
Fiber cement siding, regardless of brand, is unforgiving of bad installation. Improper fastener placement, missing flashing at butt joints, wrong clearance above rooflines and decks, and caulking where a gap should breathe — all of these cause moisture problems that show up as swelling, staining, or paint failure years later, and they void warranties on any brand. We've been called in to repair siding jobs, Hardie and otherwise, where the board itself wasn't the problem — the installation was.
That's actually part of why we standardized on one product line instead of stocking multiple brands. Our crews install Hardie exclusively, on every job, in every neighborhood from downtown Sarasota to the barrier islands. That repetition means the fastener schedule, the flashing details, and the clearance requirements are second nature, not something looked up per job depending on which manufacturer's board showed up on the truck that week.
Cost: What Actually Drives the Number
Homeowners comparing quotes often assume Allura is meaningfully cheaper than Hardie. In our experience bidding both, the material cost difference is usually modest — often single-digit percentage points on the board itself. The bigger cost swings come from these factors:
| Cost Factor | What Drives It |
|---|---|
| Trim and accessory availability | Matching trim, corner boards, and soffit in the same finish system |
| Installer familiarity | Crews experienced with one system install faster and with fewer callbacks |
| Long-term repair cost | Ease of sourcing a matching replacement plank years after original install |
| Warranty claim process | How straightforward it is to get a documented finish or substrate claim honored |
| Resale disclosure value | Buyer and inspector familiarity with the brand on the wall |
When you price out the whole system — board, trim, install labor, and the twenty-year picture, not just the per-square-foot board cost — the gap narrows or disappears, and the deciding factor becomes which product you'd rather have backing you up on a claim in year twelve.
Why We Standardized on James Hardie
We made the decision to install James Hardie exclusively — no Allura, no LP SmartSide, no vinyl, no Cemplank, no primed spruce or cedar — because it lets us do one thing extremely well instead of several things adequately. It lets our estimators quote accurately, our crews install to a single, deeply practiced spec, and our customers get a transferable warranty and finish system we can explain without hedging. In a county that sees hurricane-force wind events, salt drift, and some of the harshest UV exposure in the country, we didn't want to be making that call plank by plank, job by job.
That's a business decision as much as a product one. We'd rather turn down an Allura job than install something we can't stand behind with the same confidence, year fifteen or year twenty-five, that we have with Hardie.
A Practical Checklist If You're Comparing Fiber Cement Bids
- Ask each contractor which fiber cement brand they install and why — a straight answer beats a sales pitch.
- Request the specific product line rated for your wind zone, not just "fiber cement" as a category.
- Get the finish warranty in writing, separate from the substrate warranty.
- Ask how the installer sources matching trim, corner boards, and replacement planks locally.
- Confirm the fastener schedule and flashing details are documented for your specific wall assembly.
- Find out whether the warranty is transferable if you sell the home.
If you're weighing siding options for a home in Sarasota, Siesta Key, or anywhere else in Sarasota County, we're happy to walk through what we'd actually install and why — no pressure, no obligation. Reach out for a free estimate and we'll give you the same straight answer we've given every homeowner on this page.
Sarasota Siding