I guarantee every homeowner in Allentown has wondered at one point or another, just how long do asphalt shingles last?Maybe it’s been a couple of decades since your last roof replacement, or maybe you just moved into a new home and have no idea when the last roof was installed. Either way, your roof’s lifespan isn’t something you want to guess at—because when shingles start to fail, they don’t wait for a convenient time.
At Roofing by Bruce, we’ve spent the last 38 years helping homeowners understand their roofing needs so they can plan ahead, avoid costly damage, and get the most out of their investment. Asphalt shingles are a solid choice for durability and affordability, but their longevity depends on factors like weather, installation quality, and maintenance.
So, how long do they really last? What can you do to extend their lifespan? And how do you know when it’s time to replace them? Let’s get into it.
How Long Do Asphalt Shingles Last? The Truth About Their Lifespan
The typical lifespan of asphalt shingles falls between 20 and 30 years, but several factors can push that number higher or lower. Some homeowners may get 15 years out of their roof before needing a replacement, while others enjoy 40+ years with high-quality materials and proper maintenance.
Types of Asphalt Shingles and Their Lifespans
Not all asphalt shingles are created equal. The type you choose impacts durability and performance.
- Three-Tab Shingles (20–25 years) – The most affordable option, but with the shortest lifespan. Their flat, single-layer design makes them more susceptible to wind and weather damage.
- Architectural (Dimensional) Shingles (25–30 years) – A thicker, more durable option with a multi-layered design that provides better protection against the elements.
- Luxury (Premium) Shingles (30–40+ years) – The highest-quality asphalt shingles, designed to mimic the look of slate or cedar shakes, offering maximum durability and a longer lifespan.
While material type is important, other factors—like climate and maintenance—can either shorten or extend your roof’s life.
What Affects Asphalt Shingle Longevity?
Even the best shingles won’t last forever. Here are some of the biggest factors that contribute to wear and tear.
Weather and Climate Conditions
Living in Pennsylvania means your roof faces all kinds of weather extremes, from heavy snow and ice to scorching summer heat. Some of the biggest threats to asphalt shingle longevity include:
- Freeze-Thaw Cycles – Ice dams can form on your roof in winter, trapping moisture under shingles and accelerating wear.
- Heavy Winds – Strong gusts can loosen or completely remove shingles, leaving your roof vulnerable to leaks.
- UV Exposure – Over time, the sun’s rays break down the asphalt, causing shingles to crack or fade.
Poor Roof Ventilation
Your attic plays a bigger role in roof health than you might think. Without proper ventilation, heat and moisture get trapped, causing shingles to deteriorate faster. Signs of poor ventilation include curling shingles and excessive heat inside your home.
Installation Quality
Even the best shingles won’t last if they’re installed incorrectly. Improper nailing, misalignment, or poor sealing can cause premature failures, which is why it’s crucial to hire experienced professionals like Roofing by Bruce to get the job done right.
Lack of Maintenance
Skipping routine roof maintenance can lead to costly repairs or early replacement. Ignoring small leaks, failing to clean gutters, or letting moss and algae grow on your shingles can all shorten your roof’s lifespan.
How to Make Your Asphalt Shingles Last Longer
The good news? With the right care, you can extend your roof’s life and avoid unnecessary expenses.
Schedule Regular Roof Inspections
A yearly inspection helps catch minor issues before they turn into major problems. If you suspect damage after a storm, a professional inspection can help determine if repairs are needed.
Keep Your Gutters Clean
Clogged gutters prevent water from draining properly, leading to moisture buildup under shingles. Regularly cleaning gutters and ensuring downspouts direct water away from your home helps prevent leaks.
Trim Overhanging Tree Branches
Trees near your home can be a problem if branches rub against your shingles or break off during a storm. Keeping branches trimmed minimizes debris buildup and reduces roof damage risks.
Fix Minor Issues Promptly
If you notice missing or damaged shingles, leaks, or granule loss in your gutters, don’t wait—get them repaired before they turn into bigger issues. A small investment in repairs now can save you thousands later.
Ensure Proper Attic Ventilation
Good airflow keeps your attic temperature stable, preventing excessive heat and moisture that can weaken shingles. If you’re unsure about your attic’s ventilation, a roofing expert can assess and recommend improvements.
When Should You Replace Your Roof?
Even with the best maintenance, every roof reaches the end of its lifespan. If your roof is over 20 years old, it’s time to start watching for these signs.
- Curling, cracked, or missing shingles
- Excessive granule loss (bald spots on shingles)
- Leaks or water stains inside your home
- Visible sagging in the roof deck
- Moss, algae, or mold growth on shingles
If you notice these warning signs, it may be time to consider a roof replacement to protect your home from further damage.
Why Choose Roofing by Bruce for Your Roof Replacement?
At Roofing by Bruce, we don’t just install roofs—we help homeowners make the best decisions for their homes. Here’s what sets us apart.
- Expert Craftsmanship – With 38 years in the business, we get the job done right the first time.
- Top-Quality Materials – We use durable, high-performance shingles designed to last.
- Honest Assessments – We’ll never recommend a replacement unless you truly need one.
- Reliable Customer Service – We’re here for you before, during, and after the job.
When it’s time for a roof replacement or repair, trust the team that Allentown homeowners have relied on for decades.
Schedule a Roof Inspection Today!
Don’t wait until your roof becomes a problem. Call Roofing by Bruce today for an expert inspection and honest advice on whether a repair or replacement is the best option for your home.
Call us at (570) 424-8891
Email us at info@roofingbybruce.com
A strong, long-lasting roof starts with the right care—let’s make sure yours is built to last.
