Blaine Siding Vinyl Siding Isn't a Bad Product — It's Just the Wrong Fit for Blaine
We get asked about vinyl siding often enough that it's worth explaining our position plainly. Vinyl isn't junk. It's inexpensive, it goes up fast, and for a lot of climates it does an adequate job for a number of years. But we're a Whatcom County contractor, and after years of tear-offs and re-siding jobs around Blaine, we've made a deliberate choice not to install it. Here's the honest reasoning, not a sales pitch.
What Vinyl Actually Gets Right
To be fair to the product: vinyl siding is lightweight, budget-friendly, and doesn't need to be painted. It resists rot in the sense that the material itself doesn't absorb water the way wood does, and for interior, drier parts of the state it can hold up reasonably well. If cost were the only factor, it would make sense on paper.
Where It Struggles in Our Climate
Blaine sits right on Semiahmoo Bay, a few miles from the Strait of Georgia, and that location creates a specific set of conditions that vinyl doesn't handle gracefully over the long haul.
Salt Air and Fastener Corrosion
Vinyl panels themselves don't rust, but they're only as good as the nails and trim pieces holding them up, and salt-laden air off the water accelerates corrosion on fasteners and metal flashing faster than it would further inland. Once fasteners start failing, panels loosen, rattle in the wind, and eventually pop off.
Driving Rain and What Happens Behind the Panel
Vinyl siding is installed loose — it's designed to hang on a wall, not seal to it, which is fine in theory because it relies on a drainage plane and weather-resistant barrier behind it to do the real work. The problem is that vinyl is only as good as that installation, and Whatcom County's driving, wind-blown rain pushes water sideways into laps and seams that a calmer climate wouldn't stress nearly as hard. Moisture that gets behind the panel and can't dry out is where the real damage — sheathing rot, mold, trapped moisture — quietly happens, often for years before anyone notices from the curb.
Outflow Wind and Temperature Swings
Blaine is close enough to the Fraser Valley that we get outflow wind events — sudden drops in temperature as cold air pushes down from the Canadian interior. Vinyl is a plastic product, and it expands and contracts with temperature more than fiber cement or wood. In a hard, fast cold snap combined with wind, vinyl can become brittle and crack, especially at fastener points and corners. It's engineered to allow for some movement, but repeated wide swings shorten its working life.
Moss and the Long Wet Season
Whatcom County's moss season runs long, and vinyl's overlapping panel design creates horizontal ledges and seams that hold moisture and organic debris exactly where moss and algae like to establish. It's a cosmetic issue more than a structural one, but it means more frequent washing to keep the house looking presentable, and pressure washing vinyl the wrong way can crack panels or drive water up under laps.
Impact and Appearance Over Time
Vinyl is thin relative to fiber cement, and it dents and cracks from impact — hail, a ladder, a stray branch — more easily. It also fades with UV exposure over the years, and because color runs through the material rather than being a factory-baked finish, faded or damaged panels are hard to color-match later, especially as manufacturers discontinue older color runs.
Why We Install James Hardie Instead
We standardized on James Hardie fiber cement siding because it holds up to exactly the conditions above better than vinyl does. It's non-combustible, which matters more every year. It doesn't expand and contract with temperature the way vinyl does, so it holds fasteners and seams tighter through outflow wind events. The ColorPlus factory finish is baked on and warrantied against fading, rather than being a pigment running through a thin plastic panel. And Hardie's HZ5 product line is climate-engineered for exactly the wet, coastal Pacific Northwest conditions we deal with here — moisture resistance, freeze-thaw durability, and a strong transferable warranty backing it up.
Our Standard, Plainly Stated
We're not going to tell you vinyl siding will fail on your house next year — for plenty of homes, in plenty of climates, it performs fine for a long time. But we've chosen to build our business around one product system we trust completely for this specific stretch of coastline, and vinyl isn't it. If a contractor is willing to install anything a homeowner asks for regardless of fit, that's one approach. Ours is narrower on purpose.
Comparing the Basics
| Factor | Vinyl Siding | James Hardie Fiber Cement |
|---|---|---|
| Combustibility | Combustible plastic | Non-combustible |
| Finish | Color runs through material, fades with UV | Factory-baked ColorPlus finish, fade-warrantied |
| Cold-weather behavior | Can become brittle in sharp temperature drops | Engineered for freeze-thaw and outflow wind conditions |
| Impact resistance | Thin, dents and cracks more easily | Denser, more impact-resistant |
| Warranty | Varies widely by manufacturer | Strong transferable manufacturer warranty |
If you're weighing your options for a Blaine home, we're happy to walk your property, talk through what our region's weather actually does to different siding materials over time, and give you a straightforward, no-pressure estimate on Hardie fiber cement siding done right.