Metal Roof Overlays: What Columbus Homeowners Should Know

If you’re exploring roofing options, you might have heard about metal roof overlays. At first glance, it sounds like a win: less labor, lower cost, and a brand-new look. But is it the smart choice for your home in Columbus or surrounding areas like Dublin, Powell, or Hilliard?

Let’s break it down honestly.

What Is a Metal Roof Overlay?

A metal roof overlay involves installing new metal panels directly over your existing roof, usually asphalt shingles. Instead of tearing off the old roof, the new material goes right on top.

Sounds simple, right? Sometimes it is. Sometimes it’s a costly mistake.

When a Metal Roof Overlay Makes Sense

An overlay can work in very specific situations:

• Your current roof has only one layer of shingles (per building codes).

• The existing roof deck is solid, with no rot or sagging.

• You’re looking for a temporary upgrade before a full replacement in a few years.

• Your home’s ventilation is excellent, and condensation issues are unlikely.

In these cases, an overlay could save time and money—for now.

When You Should Avoid a Metal Roof Overlay

This is where we get real. In most cases, overlays just cover up problems instead of solving them. And you’ll pay for it later.

Avoid overlays if:

• Your roof already has two or more layers (that’s a code violation).

• There’s any sign of wood rot, sagging, or structural issues.

• You’ve had attic moisture problems—overlays trap moisture and can create serious mold and rot issues.

• You want to take full advantage of the energy efficiency and longevity that a properly installed metal roof provides.

Overlays can also void warranties and limit your future roofing options.

One homeowner in Upper Arlington came to us after a poorly done overlay trapped moisture in their attic. Within two years, their decking had rotted out, and they needed a full tear-off and replacement. That "money-saving" decision ended up costing double.

What Building Codes Say About Metal Overlays

Per the International Residential Code (IRC), you cannot install a new roof over two or more layers of roofing. Columbus and surrounding cities enforce this strictly. Ignoring this puts you at risk for code violations and denied insurance claims.

If you’re unsure about your current roof’s condition, call us. We’ll inspect it for free and give you the truth.

What’s the Right Call for Your Home?

If you’re planning to stay in your home long-term, we recommend doing it right the first time. A full tear-off and replacement:

• Ensures proper ventilation and moisture control.

• Allows us to inspect and repair any hidden damage.

• Extends the life of your roof system—up to 50+ years with proper metal roofing.

• Gives you the full benefit of energy savings and improved home value.

If you're flipping the home or selling soon, an overlay might be a quick fix—but even then, it should be approached carefully.

Final Take

At The Roof Champion of Columbus, we don’t cut corners. We educate you, fight for you with insurance companies when needed, and make sure you’re making a decision that protects your home for the long haul.

Want an honest roof assessment? Call us at (614) 639-3422 or visit www.roofchampcolumbus.com.

We don’t quit. We fight. We win.