The Noise Concern, Addressed Directly
It's usually the first question people ask, and for homes, metal roof noise is a myth. It comes from open-frame structures like barns, where panels attach directly to purlins with no decking, sheathing, or insulation to absorb sound. On a standard residential roof with solid decking and attic insulation, the difference is dramatic. Acoustic testing cited by McElroy Metal found roughly 61 decibels for open-frame installation versus 52 decibels for a complete residential assembly. That gap comes from what's under the metal, not the metal itself.
Hail Resistance: A Climate-Specific Advantage
Metal panels are commonly available with a Class 4 impact rating (UL 2218), the highest classification. That means the panel resists cracking, splitting, or penetration from a 2-inch steel ball dropped from 20 feet in testing. Given how often monsoon storms bring hail (covered in our monsoon damage article), this advantage fits local conditions. Cosmetic denting is still possible, especially on softer metals like aluminum or from unusually large hail. Even a cosmetically dented metal roof typically keeps its waterproofing intact, though, while asphalt shingles lose granules and crack under the same impact.
Where Metal Excels Here
Beyond hail, metal's climate advantages line up closely with what we've covered in our other material articles. It has strong UV resistance (see our altitude and UV article) and predictable thermal expansion that handles daily temperature swings well (see our thermal cycling article). Its realistic local lifespan also holds close to its national rating, where asphalt often falls short (see our roof lifespan article). Metal is naturally fire-resistant too, which matters for homes near forested areas like the East Mountains, where wildfire risk factors into material choice more than it does on the valley floor.
The Tradeoffs
Upfront cost is higher than asphalt shingles. See our cost breakdown article for how the categories compare. The lifespan difference can offset this over time, but it's a significant budget consideration up front.
Weight matters for older homes. Most metal roofing is lighter than tile, but it's still worth confirming your home's structure is rated for the specific system chosen, especially on older construction.
Some cosmetic denting risk exists, as noted above. That's worth weighing if an unmarked surface matters more to you than the underlying performance.
Hail Dents and the Cosmetic Damage Exclusion
A cosmetic damage exclusion means your policy won't pay for hail damage that changes how the roof looks without changing how it works, like dents in metal panels that don't leak. New Mexico's Office of Superintendent of Insurance warns that some policies limit wind and hail coverage with exceptions for cosmetic damage. On a metal roof, most hail damage is dents, so this clause matters more than it would on shingles.
A Class 4 impact rating doesn't change that. UL 2218 tests whether a roof covering cracks or ruptures under impact, and a metal panel can pass and still dent. Whether those dents are covered comes down to your policy wording. At least one court has upheld this kind of exclusion for hail-dented metal roofs, as this coverage law summary explains.
To find out whether you have one, read your declarations page and endorsements for the words cosmetic, appearance or functional, or ask your agent: does my policy exclude cosmetic hail damage to a metal roof, and what counts as functional damage? If you're switching to metal, ask before the roof goes on. For more on claims, see the insurance center.
What This Means Practically for Homeowners
- If hail resistance and long-term lifespan matter most to you, metal's advantages here are backed by data.
- Ask specifically about the panel's impact rating and gauge, beyond whether it's metal. Ratings and performance vary meaningfully between products.
- If you're planning to stay in the home long-term, the upfront cost gap matters less than it would for a shorter ownership horizon.