Tampa Siding Two Fiber Cement Products, One Company Standard
When homeowners in Tampa start comparing siding, most of the conversation is vinyl versus fiber cement. But there's a second conversation that doesn't come up as often: not all fiber cement siding is the same, and not all of it gets installed the same way. Allura and James Hardie are both legitimate fiber cement manufacturers making a genuinely fire-resistant, rot-resistant, termite-proof product. We're not going to tell you Allura is junk, because it isn't. We simply made a decision, years ago, to install one fiber cement system on every job we take — James Hardie's HZ5 line — and to turn down work that requires us to install anything else.
This page exists because Tampa homeowners deserve to understand why. If you're comparing bids and one contractor is proposing Allura at a lower price, you should know what's actually different between the two products, and why our standard costs a little more up front.
What Allura Siding Gets Right
Fair is fair. Allura fiber cement is manufactured from portland cement, sand, and cellulose fiber, the same basic recipe as James Hardie, and it shares the same core advantages over vinyl and wood: it doesn't burn, it doesn't feed termites, and it holds paint and texture far better than vinyl siding does over a 20-plus year lifespan. Allura has been in the North American market for decades, it's a real building product with real engineering behind it, and plenty of licensed contractors install it correctly and stand behind it. If your only comparison is Allura versus vinyl, Allura wins that comparison on durability almost every time.
So this isn't a "one product is good and one is bad" page. It's a page about why our company, specifically, chose to specialize in one manufacturer's system rather than carry two, and why that manufacturer is James Hardie.
Why Tampa's Climate Raises the Stakes
Siding decisions matter more here than they do in a lot of the country. Hillsborough County sits in a climate that stress-tests exterior building products in ways that inland, drier regions never see:
- Hurricane-force wind: Tampa Bay sees tropical storm and hurricane-strength wind events almost every season, and siding has to stay fastened and sealed through sustained gusts, not just survive a single storm.
- Year-round UV load: Florida's sun angle and clear-sky days mean painted and coated surfaces take a UV beating twelve months a year, not just in summer.
- Wind-driven rain: Tropical systems don't just drop rain, they drive it sideways into wall assemblies, which tests how well a siding product's joints, laps, and finish shed water under pressure.
- Salt air: Proximity to Tampa Bay and the Gulf means airborne salt accelerates corrosion of fasteners and trim hardware, and it degrades weaker paint films faster than it would inland.
None of these conditions are exotic to us, they're just Tuesday in Hillsborough County. But they're exactly why the differences between fiber cement products, differences that might not matter much in a mild climate, matter a lot here.
Where the Trade-Offs Actually Show Up
The gap between Allura and James Hardie isn't in the raw material, it's in the engineering choices layered on top of that material: how the product is formulated for regional climate exposure, how the finish is applied and warranted, and how tightly the installation specification is controlled. Here's how we see the practical differences that drove our decision:
| Factor | What we've found with Allura-type products | Why we standardized on Hardie HZ5 |
|---|---|---|
| Climate-specific engineering | General-purpose fiber cement formulation across regions | HZ5 line is engineered specifically for high-humidity, high-moisture Gulf and coastal climates |
| Factory finish | Finish options and warranty terms vary by product line and dealer | ColorPlus factory-baked finish with a dedicated finish warranty, applied under controlled conditions rather than in the field |
| Installer network | Fewer manufacturer-certified installers in the Tampa Bay market | Established local network of Hardie-trained crews and a manufacturer-backed preferred contractor program |
| Warranty transfer | Transfer terms and documentation requirements vary | Well-documented transferable warranty process our office has handled many times |
| Local track record | Less installed inventory in our market to inspect years later | Decades of installed Hardie siding around Tampa Bay we can point a homeowner to |
None of this means Allura is defective or that a properly trained crew can't install it well. It means that when we sat down and decided which single system we could master completely, back it fully, and stand behind for the life of a warranty claim, Hardie's climate-specific line and finish system gave us the most confidence for what this specific coastline does to a house.
The Finish Is Where Fiber Cement Actually Fails
Here's something worth understanding regardless of which brand you choose: fiber cement board itself almost never fails outright. What fails, over time, is the paint or finish on top of it. If moisture gets behind a poorly sealed joint, or a finish coat chalks and thins under UV exposure faster than expected, that's where you start seeing streaking, color fade, or soft spots at butt joints and corners years down the road. A factory-applied, kiln-cured finish with a dedicated finish warranty is a meaningfully different product than field-painted or lightly primed board, because the coating is baked on under controlled conditions instead of applied on a job site with variable weather, humidity, and dry time. In a climate that gets Tampa's UV dose and Tampa's humidity, we weren't willing to gamble the finish on field conditions.
Installation Sensitivity Is the Other Half of the Story
Fiber cement siding, any brand, is not a forgiving product to install wrong. Fastener placement, caulk joints, flashing details, and clearance from grade all have to be done to spec, or moisture finds a way behind the board no matter whose name is on it. We made a deliberate choice to run one system across every crew we employ so that:
- Every installer on every job has been trained on the same fastening pattern, joint treatment, and clearance requirements, not switching specs from house to house.
- Our warranty claims process is straightforward, because we're not juggling different manufacturer requirements depending on which product got installed on which house.
- We can guarantee our labor against a single, well-documented installation standard instead of splitting our attention across multiple product lines.
Carrying two or three fiber cement brands might sound like flexibility for the homeowner, but in practice it means a crew is never fully specialized in any one of them. We decided specialization would serve Tampa homeowners better than variety.
Warranty Structure Matters More Than the Sticker Price
A lower bid on Allura siding can look attractive next to a Hardie quote, but the real comparison isn't the install price, it's what happens fifteen years from now if the finish starts to fade or a joint starts to leak. A siding warranty is only as good as three things: how the manufacturer backs the material, how clearly the finish is warranted separately from the substrate, and how easily that warranty transfers if you sell the house. Hardie's warranty documentation and transfer process is something our office has walked homeowners and their real estate agents through many times, which matters when a Tampa home changes hands and a buyer's inspector asks about the siding.
Why We Standardized on James Hardie
Put simply: we'd rather be excellent at one system than average at three. James Hardie's HZ5 product line was engineered for exactly the humidity, wind, and moisture profile that Hillsborough County deals with every hurricane season. The ColorPlus factory finish takes the single biggest failure point in fiber cement siding, the field-applied paint job, out of the equation. The transferable warranty gives homeowners something concrete to point to when they sell. And because it's the only system our crews install, every fastener pattern, every joint detail, and every flashing decision on your house follows one spec our installers know cold, not a spec they're reading off a different manufacturer's install guide for the third time that month.
That's not a knock on Allura as a product. It's a statement about what it takes for a contractor to actually stand behind a 30- to 50-year exterior decision in a climate like ours.
A Practical Checklist Before You Choose Any Fiber Cement Product
Whether you go with us or another contractor, ask these questions before signing a siding contract in Tampa:
- Is the finish factory-applied and separately warranted, or will it be field-painted after installation?
- Is the specific product line rated or engineered for high-humidity, coastal climate exposure?
- Is the installer certified or specifically trained by the manufacturer on this product line?
- What does the warranty require to stay valid, and how does it transfer if you sell the home?
- Does the fastening and joint-sealing spec account for Hillsborough County's wind-load requirements?
- Will the same crew that quotes the job also install it, and have they installed this exact product before?
Let's Talk About Your Home
If you're comparing siding options in Tampa or anywhere else in Hillsborough County, we're happy to walk through what we see on your specific house, no pressure, no hard sell on a product you didn't ask about. Reach out for a free estimate and we'll give you a straight answer about what your home needs and why we'd install it the way we do.