There isn’t one set schedule for replacing a roof. Most homeowners don’t need a new roof every certain number of years just because the calendar says so. How long a roof lasts depends on the roofing material, installation quality, weather exposure, ventilation, storm damage, and the actual condition of the roof.
For homeowners with asphalt shingles—the most common type of residential roofing—the better question isn’t simply “How old is my roof?” It’s “What condition is my roof actually in?”
At Barringer Brothers Roofing, we’ve served homeowners throughout Edwardsville and the Metro East since 2004, providing asphalt roof replacement, repairs, inspections, storm damage services, and new construction roofing.
How Many Years Should an Asphalt Roof Last?
Asphalt shingle roofs are designed to provide many years of service, but there isn’t a universal replacement age that applies to every house.
Different types and grades of asphalt shingles have different expected lifespans. More importantly, two houses with roofs installed in the same year may not age at exactly the same rate.
One roof might experience years of severe storms, heavy tree coverage, ventilation problems, or previous damage. Another may have fewer issues and remain in good condition longer.
That’s why age is useful information—but it isn’t a diagnosis.
Do You Automatically Need a New Roof After 20 Years?
No.
Reaching a certain age doesn’t automatically mean a roof needs to be torn off and replaced.
An older roof that’s still performing well may not need immediate replacement, while a much newer roof could need significant work because of storm damage, installation problems, or another issue.
As a roof gets older, however, it makes sense to pay closer attention to its condition. Aging shingles and other roofing components have spent years exposed to sunlight, rain, wind, hail, heat, cold, and seasonal temperature changes.
The condition of the roof should ultimately guide the decision.
What Can Make a Roof Need Replacement Earlier?
Several factors can shorten the useful life of an asphalt roof.
Severe Weather
High winds, hail, falling branches, and other storm conditions can damage a roof well before it reaches an expected replacement age.
This is particularly relevant in Southern Illinois, where severe thunderstorms and changing weather conditions are a normal part of homeownership.
Installation Quality
A roof is more than shingles.
Decking, underlayment, flashing, drip edge, ventilation, and the shingles themselves all need to work together as a complete roofing system. Problems with installation can affect how well that system performs over time.
Ventilation
Conditions underneath the roof matter too.
Proper attic ventilation helps manage heat and moisture. Ventilation problems can affect the roofing system and may contribute to premature deterioration.
Unaddressed Damage
A small repairable problem doesn’t necessarily mean you need a new roof.
But allowing water intrusion or damaged roofing components to remain unaddressed can sometimes lead to more extensive problems.
Trees and Debris
Nearby trees can create shade, debris buildup, and the possibility of branches damaging the roof during storms.
That doesn’t mean trees around your home are automatically a problem, but the environment surrounding a roof can influence how it ages.
How Do You Know When It’s Actually Time for a New Roof?
There isn’t one sign that means every roof needs replacement.
Instead, look at the overall condition of the roofing system.
A roof may be approaching replacement when there is widespread deterioration, repeated problems in different areas, significant storm damage, or damage that can no longer be reasonably addressed with localized repairs.
You may also notice visible changes such as missing or damaged shingles, recurring leaks, or sections of the roof that no longer look the way they once did.
The important word is widespread.
One damaged area doesn’t automatically mean an entire roof has failed.
Can You Keep Repairing an Older Roof?
Sometimes.
Roof repairs can make sense when a problem is isolated and the rest of the roofing system is still in reasonable condition.
As a roof gets older, however, there can come a point where repeatedly repairing individual problems becomes less practical than replacing the roofing system.
That’s why the repair-versus-replacement decision should consider both the immediate problem and the condition of the roof as a whole.
Can a Newer Roof Still Need Replacement?
Yes.
Age isn’t the only reason roofs are replaced.
A relatively new roof could experience significant hail or wind damage, installation problems, structural damage, or another issue that affects a large portion of the roofing system.
On the other hand, finding a problem on a newer roof doesn’t automatically mean replacement is necessary either. Depending on the extent of the damage, a repair may still be the appropriate solution.
Should You Replace a Roof Before It Starts Leaking?
You don’t necessarily need to wait for water to come through the ceiling before considering replacement.
A leak is one possible sign of a roofing problem, but it isn’t the only one.
If an older roof is showing widespread deterioration or has significant damage, it may make sense to address it before interior water damage occurs.
At the same time, replacing a roof simply because it has reached a particular birthday isn’t always necessary.
The goal is to make the decision based on condition rather than waiting for an emergency—or replacing a perfectly functional roof too early.
How Often Should You Check the Condition of Your Roof?
Homeowners can keep an eye on their roof from the ground throughout the year, especially after significant storms.
Look for obvious changes such as missing shingles, displaced materials, fallen branches, or anything that suddenly looks different.
You don’t need to climb onto the roof yourself.
If you’ve noticed a problem, experienced a significant storm, have an older roof, or simply don’t know what condition the roof is in, a professional evaluation can give you a clearer answer.
How Long Will a New Roof Last?
There’s no way to promise an exact lifespan for every roof.
A properly installed asphalt shingle roof is designed to provide long-term protection, but its actual lifespan will depend on the roofing materials, installation, ventilation, weather exposure, maintenance, storm history, and other conditions specific to the home.
That’s why two neighbors can replace their roofs at the same time and eventually need their next roofs at different times.
Frequently Asked Questions
There is no universal replacement schedule. Asphalt roofs can last for decades, but the actual condition of the roof should determine when replacement is necessary.
Yes. Significant storm damage, installation problems, water intrusion, ventilation issues, or other conditions can cause a roof to need replacement earlier.
It depends on the extent of the problem and the overall condition of the roof. A localized issue may still be repairable, while widespread deterioration can make replacement more practical.
No. A roof can have significant deterioration or damage before a leak becomes visible inside the home. Replacement should be based on the roof’s overall condition rather than waiting for water to enter the house.
Does Your Home Actually Need a New Roof?
The age of your roof can help you understand where it may be in its lifespan, but age alone shouldn’t make the decision for you.
Barringer Brothers Roofing has served homeowners throughout Edwardsville and the Metro East since 2004. We provide roof inspections, repairs, asphalt roof replacement, storm damage services, and new construction roofing.
If you’re unsure whether your roof still has life left or whether it’s time to consider replacement, we can evaluate its condition and explain what we’re seeing.
For more information about your roof, a repair, or an upcoming roofing project, call Barringer Brothers Roofing at (618) 703-3036 or fill out our online contact form.
