Metal siding isn't the default choice in New Jersey — vinyl and fiber cement dominate the market — but it comes up when homeowners are replacing decades-old aluminum panels or specifically want a metal look. Below, we get into hail resistance, rust risk, and where each metal fits, and if metal ends up being the wrong call for your house, our full exterior services cover vinyl and fiber cement too.
Side-by-Side Differences
Hardness and Dent Resistance
Steel has a higher tensile strength than aluminum — it simply takes more force to permanently bend the metal. In a hailstorm, that translates directly into fewer dents on a steel panel than an aluminum panel of similar thickness. Ironically, aluminum's softness is exactly why it got popular decades ago: it was easy to form into shapes and colors. That same softness, though, is its weak spot against impact.
Rust and Corrosion
Aluminum simply doesn't rust. It can oxidize into a dull, chalky surface over time, but it won't corrode through the way steel can. Steel siding gets a protective coating — usually galvanized or a factory finish — to prevent rust, but once that coating is scratched, chipped, or worn through, the exposed metal underneath is vulnerable, especially in humid climates or spots that stay wet.
Weight and Installation
Aluminum is significantly lighter, which speeds up installation and puts less stress on a home's structure and fastening system. Steel's extra weight isn't a structural dealbreaker for most homes, but it does make for a more physically demanding install.
Color and Finish Retention
Both metals typically wear a factory-applied paint or coating. Aluminum holds paint well and resists fading reasonably, though scratches show up more easily since the metal underneath is so soft. Steel's finish resists scratches better, but once it's compromised, the rust risk underneath makes repair more urgent than it would be with aluminum.
Cost, Lifespan, and Durability Comparison
Cost: Aluminum siding is generally the less expensive of the two, in both material and labor, thanks to its lighter weight. Steel typically costs more upfront.
Lifespan: Both metals can last several decades with proper maintenance and an intact finish. Aluminum's lifespan is limited mainly by cosmetic wear — dents, fading, chalking — rather than structural failure, since it can't rust. Steel's lifespan hinges on how well its coating holds up; a steel panel with rust breaking through fails well before an aluminum panel with a few cosmetic dents ever would.
| Factor | Aluminum Siding | Steel Siding |
|---|---|---|
| Dent Resistance | Lower (soft metal) | Higher (stiff, hard metal) |
| Rust Risk | None (can oxidize only) | Possible if coating is compromised |
| Weight | Lightweight | Heavier |
| Install Labor | Faster, easier | More physically demanding |
| Upfront Cost | Lower | Higher |
| Best Fit | Rust-prone, shaded/damp lots | Hail-prone areas, high impact risk |
Similarly, the real durability question isn't heat or cold for either metal — both handle New Jersey's temperature swings fine without warping. It's impact for aluminum, and coating integrity for steel.
Which One Fits Which Homeowner Situation
NJ-Specific Considerations
New Jersey doesn't see the frequent, large-hail events that parts of the Midwest deal with, but hail-producing thunderstorms do roll through, especially in late spring and summer, and they can be strong enough to dent metal siding and damage roofing in a single afternoon. Homeowners who've already dealt with hail damage — or who live under mature trees dropping branches in wind and ice storms — are usually the ones weighing aluminum against steel seriously. If a storm just came through and left damage that needs attention fast, emergency exterior repair is worth a same-week call rather than waiting it out.
Humidity and seasonal moisture matter too. New Jersey summers run humid, and winters bring freeze-thaw cycles along with road salt and moisture exposure. For steel siding, that makes coating integrity especially important — a chip left unaddressed through a New Jersey winter has far more opportunity to rust than it would in a drier climate. It's a similar story with metal gutter systems, which need their coatings checked for the same reason, since gutters sit in standing moisture even more than wall panels do.
Because both aluminum and steel make up a smaller slice of the regional siding market, it's worth confirming your installer has real experience with metal specifically, not just vinyl or fiber cement. Homeowners in Bloomfield weighing siding options and those searching for a siding contractor near Nutley both ask about metal siding fairly often, usually because an older home in the area still has its original aluminum panels.
And if cost is the only thing standing between you and the material you actually want, Botani Roofing & Siding offers $0-down, 0%-APR financing for up to 60 months on siding projects, metal or otherwise.