Metal vs. Asphalt: A Decade of Florida Lessons

We have installed both metal and asphalt on Tampa Bay homes for more than a decade. The shingle vs. metal debate happens every week in our quotes. Most of the answers online are written by marketers for one side or the other. This is the version written by the crew who has gone back to the same homes for repairs and replacements 8, 10, 15 years later, and seen which material actually held up.

If you want the comparison-table version, our Shingle vs. Tile vs. Metal guide has the side-by-side numbers. This post is about what those numbers leave out.

Asphalt: cheaper, faster, almost always fine

The honest truth: asphalt shingles are the right answer for most Tampa Bay homes. They are well understood, fast to install, code-compliant, insurance-friendly, and modern architectural products perform far better in wind than the three-tab shingles your grandparents had.

A well-installed architectural shingle roof in Tampa Bay typically lasts 20 to 25 years. That is shorter than the brochure (UV and salt, see why TB roofs age faster) but it is still cost-effective on a per-year basis for most owners.

When asphalt is the right call:

• You plan to sell within 15 to 20 years.
• You want the lowest cash outlay and the most flexible insurance underwriting.
• Your home's existing structure was designed for shingle weight.

When asphalt struggles:

• South-facing slopes with full UV exposure age noticeably faster than the rest of the roof.
• Tree shade encourages algae growth on north slopes. The stains are cosmetic but accelerate granule loss.
• Older, low-pitch installs (under 4:12) require extra underlayment that some contractors skip.

Metal: more expensive up front, often the better long-term math

A standing-seam metal roof properly installed in Tampa Bay can last 40 to 70 years. The panels themselves outlive the original homeowner. The expensive parts are the fasteners and clips, which need to be rated for marine exposure if you are within 5 miles of the Gulf.

When metal is the right call:

• You plan to stay in the home for 15 years or longer. The amortization math gets dramatically better past year 20.
• You are within 3 miles of the coast and want the longest possible service life.
• You want the largest available wind ratings (often 150 to 180 mph on standing seam).
• You want the lower long-term cooling cost. A reflective metal roof can drop attic temperatures by 20 to 30 degrees in summer.

What we have seen go wrong:

• Exposed-fastener metal panels (the cheaper screw-down style) develop fastener leaks after 10 to 15 years. The neoprene washers under the screws are the failure point. Standing-seam systems with concealed fasteners avoid this.
• Mismatched fasteners on coastal homes corrode early. We have replaced 12-year-old metal roofs because the fasteners failed long before the panels.
• Underlayment shortcuts. Metal is only as good as what is under it. Reusing old felt under a new metal panel is a recipe for early failure.

What we tell customers asking us to "just decide"

We do not push one or the other. We ask three questions:

1. How long do you plan to stay? Under 15 years, asphalt usually wins on lifetime cost. Over 20 years, metal often does.
2. What does your insurance carrier do with metal? Most major Florida carriers now underwrite metal without friction; some still apply different deductible structures. Worth checking before deciding.
3. What does your neighborhood look like? Metal looks great on some homes and odd on others. Tile-style metal is a workaround for HOAs that require a "shingle look."

The hybrid case

A few times a year we do a hybrid: metal on the main pitches and architectural shingles on a secondary porch or addition. This works when the structural load or the architecture makes a single material impractical. The transitions between the two systems are the weak point, so the install has to be precise. When done right, it costs slightly more than all-shingle and noticeably less than all-metal.

The bottom line

If you only have 15 minutes to decide: architectural shingles, properly installed, with secondary water resistance underneath. That is the right call for 70% of Tampa Bay homes.

If you have time to make the long-term math work and you are not selling soon, standing-seam metal with marine-rated fasteners pays you back over 20-plus years and stops being a "roof problem" for the next homeowner too.

We quote both. The choice is yours.

Get a side-by-side quote