Lynden Siding Vinyl Isn't a Bad Product — It's Just Not the Right One for Whatcom County
We get asked about vinyl siding a lot, usually from homeowners comparing bids and wondering why our number looks different from a vinyl installer's. It's a fair question, and it deserves a straight answer instead of a sales pitch. Vinyl siding isn't junk. It's affordable, it goes up fast, and in a lot of the country it holds up fine for years with minimal upkeep. We just don't install it here, and after years of working on homes throughout Lynden and the rest of Whatcom County, we've got specific, practical reasons why.
What Vinyl Does Right
Credit where it's due: vinyl siding is lightweight, inexpensive relative to other options, and doesn't need painting. For a builder trying to hit a price point, or a climate with mild humidity and stable temperatures, it can be a reasonable choice. If cost were the only variable, vinyl would win a lot of bids.
Where It Struggles in Our Climate
Lynden sits close enough to the Salish Sea that salt air is a real factor, and combined with our long, wet winters, that's a tough combination for vinyl. A few specific issues we see repeatedly on this side of the Cascades:
- Panels move a lot with temperature swings. Vinyl expands and contracts more than fiber cement or wood. It has to be installed with room to "float," and if it isn't hung exactly to spec, you get buckling, waviness, or panels that pop loose in a wind event. Whatcom County gets its share of driving rain and gusty fall storms, and loose or warped panels are one of the most common vinyl repair calls we hear about from homeowners switching products.
- It's not a moisture barrier — it's a moisture-tolerant shell. Vinyl siding is designed to let water get behind it and drain back out through weep holes at the bottom of each panel. That works fine in theory, but with the volume of rain we get here, any misstep in the water-resistive barrier, flashing, or lap detailing behind the panels turns into a slow, hidden moisture problem — the kind that isn't visible until you pull siding off years later.
- Seams and laps collect grime, algae, and moss. Our moss season runs long, and vinyl's overlapping panel seams and slightly textured surface give moss and mildew plenty of places to take hold, especially on north-facing walls that don't get much sun. It's cosmetic, but it means more pressure-washing and more visible aging than homeowners expect going in.
- Cold makes it brittle. Vinyl gets stiff and can crack on impact in freezing temperatures — a dropped ladder, a wind-thrown branch, hail. We don't get extreme cold often, but we get enough hard frosts each winter that this shows up as cracked or shattered panels on older installs.
- It's not fire-resistant. Vinyl is a petroleum-based plastic. It melts and can contribute fuel in a fire, which matters more every year as wildfire smoke and dry summer stretches become a regular part of our Pacific Northwest summers, even out here on the wetter side of the state.
- Color fades, and you can't touch it up. Vinyl color is baked through the material but still fades with UV exposure over time, and unlike a painted or factory-finished product, there's no clean way to refresh just the faded elevation — the whole wall reads mismatched against newer panels or trim.
The Installation Sensitivity Problem
A lot of vinyl's real-world failures aren't the material's fault — they're installation error. Vinyl has to be hung loose enough to expand and contract, nailed in the exact right spot on the nailing hem, and lapped correctly at every course. Get any of that wrong and you get the buckling, gapping, and blow-off problems that give vinyl its reputation. That sensitivity is exactly why we don't want our name on it: we'd rather stake our reputation on a product where correct installation and a durable result go hand in hand, not one where a small technique error only shows up two winters later.
Why We Install James Hardie Instead
We install James Hardie fiber cement exclusively, and it's a direct response to the issues above. Hardie's HZ5 product line is engineered specifically for our climate zone — freeze-thaw cycles, sustained moisture, and coastal-influenced air. It's non-combustible, so it doesn't contribute fuel in a fire. The ColorPlus factory finish is baked on under controlled conditions and backed by its own finish warranty, so color stays consistent and touch-up isn't a mismatched patch job. Fiber cement doesn't expand and contract anywhere near as much as vinyl, so it holds its line against our wind and rain without the waviness or popped panels we see on vinyl re-siding jobs. It's heavier and denser, which also means it doesn't crack under cold-weather impact the way vinyl does, and it carries a strong transferable warranty that reflects the product's actual field performance, not just marketing.
None of this is about vinyl being a scam or a bad product in the abstract — it's about what actually holds up on homes in Lynden and the rest of Whatcom County, year after year, through our specific mix of salt air, rain, and moss. That's the standard we hold every job to, and it's why we made the call to install one product and do it right.
If you're weighing siding options for your home, we're happy to walk you through what we see in this climate and give you a straightforward, no-pressure estimate for a Hardie installation — no obligation, just an honest look at what makes sense for your house.
