If you know your roof is 15, 20, or even 25 years old, you may automatically assume it’s time to replace it. But does the number of years alone actually tell you whether your roof is still good?

Roof age matters, but it isn’t the whole story.

Two asphalt roofs installed in the same year can be in very different condition today. Installation quality, shingle quality, ventilation, maintenance, storm exposure, and even the amount of shade around your home can all affect how quickly a roof ages.

At Barringer Brothers Roofing, we help homeowners throughout Columbia, IL and the Metro East determine whether an aging roof still has life left or whether it’s time to start thinking about replacement.

How Long Does an Asphalt Roof Usually Last?

Most architectural asphalt roofs are expected to provide decades of protection, but there isn’t one exact age when every roof suddenly needs to be replaced.

As a roof gets older, the likelihood of problems naturally increases. That doesn’t mean a 20-year-old roof automatically needs to come off—or that a younger roof is guaranteed to be in great condition.

Age is best used as one piece of information when evaluating the overall condition of the roof.

Why Two Roofs the Same Age Can Look Completely Different

Imagine two Columbia homes that both had new roofs installed 18 years ago.

One may still be performing well while the other is already showing significant wear.

Why?

Several factors affect how quickly an asphalt roof ages, including:

• Quality of the original installation
• Type and quality of shingles
• Attic ventilation
• Severe weather exposure
• Hail and wind damage
• Sun exposure
• Nearby trees and shade
• Maintenance and previous repairs

That’s why simply knowing the year your roof was installed doesn’t always tell you how much life it has left.

Installation Quality Can Affect How a Roof Ages

A quality roof starts with proper installation.

Correct nail placement, flashing, underlayment, ventilation, and other details all affect how the roofing system performs over time.

A roof installed correctly has a much better opportunity to reach its expected lifespan. Installation problems, on the other hand, can lead to premature wear or roofing issues much earlier.

Illinois Weather Can Speed Up Roof Aging

Roofs in Columbia have to handle a little bit of everything.

Hot summers, freezing temperatures, thunderstorms, high winds, hail, snow, and repeated temperature changes all put stress on asphalt shingles over the years.

One severe storm can also affect a roof regardless of its age. That’s why a relatively young roof can sometimes need repairs or replacement while an older roof may still be performing well.

What Does an Aging Roof Look Like?

Instead of focusing only on the number of candles on your roof’s imaginary birthday cake, pay attention to its actual condition.

Signs of an aging asphalt roof can include:

• Curling or lifting shingles
• Cracked shingles
• Missing shingles
• Significant granule loss
• Bald spots on shingles
• Frequent repairs
• Leaks or interior water stains
• Visible deterioration around flashing or roof penetrations

If several of these issues are appearing at the same time, age becomes much more important when deciding whether another repair makes sense.

Does a 20-Year-Old Roof Automatically Need to Be Replaced?

No.

A 20-year-old roof should certainly be monitored more closely than a roof installed a few years ago, but age alone doesn’t automatically mean replacement is necessary.

If the shingles are still performing well and the roofing system is in good condition, you may have more time.

On the other hand, if a 20-year-old roof is experiencing repeated problems, investing in repair after repair may no longer make financial sense.

Can a Younger Roof Still Need Replacement?

Absolutely.

Age works both ways.

A roof doesn’t have to be “old” to experience significant hail damage, wind damage, installation problems, or other issues.

This is another reason homeowners shouldn’t rely exclusively on roof age when deciding whether their home needs roofing work.

How Do I Find Out How Old My Roof Is?

If you purchased your home after the current roof was installed, you may not know its exact age.

You may be able to find information through:

• Home purchase documents
• Previous homeowner records
• Roofing invoices or warranties
• Building or permit records
• Inspection reports

A roofing contractor may also be able to estimate the general age and condition of the roof based on the materials and visible wear, although an estimate won’t necessarily identify the exact installation date.

When Does Roof Age Become a Bigger Concern?

The older your roof gets, the more important regular inspections become.

If your asphalt roof is approaching the later part of its expected lifespan, knowing its current condition can help you plan ahead rather than waiting for a leak or emergency.

That doesn’t necessarily mean replacing it immediately. It simply gives you a better idea of whether you should expect a replacement soon and allows you to budget accordingly.

Condition Matters More Than a Birthday

There’s no magic number that tells every Columbia homeowner when to replace a roof.

Age matters because roofing materials naturally deteriorate over time, but the actual condition of your roofing system matters more than the year it was installed.

A professional inspection can help you understand both.

Frequently Asked Questions

Wondering How Much Life Your Roof Has Left?

If you know your roof is getting older but aren’t sure whether it actually needs to be replaced, you don’t have to guess. Barringer Brothers Roofing can inspect your roof and help you understand its current condition and your options.

We proudly serve homeowners throughout Columbia, IL and the surrounding Metro East with honest recommendations and quality asphalt roofing services.

Call Barringer Brothers Roofing at (618) 703-3036 or fill out our online contact form to schedule your free estimate.