# How long does a roof last? How to tell if yours has one more season > How long does a roof last in Tennessee? The signs your roof has one more season left, when a repair still makes sense, and when to plan a new roof. Canonical page: https://www.mobleybros.com/how-to-tell-if-your-roof-has-one-more-season-left/ Mobley Brothers Roofing & Renovation (Mobley Brothers Roofing & Renovation LLC) is a family-owned and veteran-owned roofing and renovation contractor founded in 2007 by brothers Mike and David Mobley, one company with two branches; their sons, Operations Managers Martin Mobley (Lebanon) and Aaron Mobley (Knoxville), work alongside them. Offices in Lebanon (112 Tirzah Street, Lebanon, TN 37087, (615) 455-3131) and Knoxville (10440 Laurel Pointe Lane, Knoxville, TN 37931, (865) 205-0800). Tennessee contractor license 59116. GAF Master Elite residential contractor, GAF GoldElite Commercial contractor, HAAG Certified Inspector (residential), certified FORTIFIED Roof installer, BBB Accredited with an A+ rating. Google rating 4.9 from 94 reviews (Lebanon) and 4.9 from 286 reviews (Knoxville). Hours: Open 24 hours, 7 days a week; Calls answered or returned day or night. How long does a roof last? Longer than some, shorter than most homeowners hope, and the age of your roof only tells part of the story. Heavy granule loss, cracked or curling shingles, exposed fiberglass, repeated leaks and shingles coming loose all mean replacement is getting close. If the shingles still lie flat, the roof isn't leaking and the damage is limited to one small area, you may still have time for a repair. An in-person inspection is the surest way to find out whether your roof has another winter or storm season left. You know your roof is getting older. You're just hoping it isn't that old yet. Maybe replacing it this year isn't in the budget. Maybe you'd rather get through one more Tennessee winter first, or storm season is coming and you're wondering whether tired shingles can take another round of heavy rain and high wind. It's a fair question, and this guide walks through how we answer it. ## How long does a roof last in Tennessee? There's no single number, which is why age alone can't settle the question. For asphalt shingles, the type of shingle sets the baseline. InterNACHI's estimated life expectancy chart for homes puts architectural asphalt shingles at around 30 years and older three-tab shingles at around 20, and those are estimates for good conditions. Few roofs reach the best case. We install architectural shingles, and we see plenty of roofs in Middle and East Tennessee wear out well before the chart says they should. Several things decide how long yours will actually last: - The weather: the sun's UV rays slowly break down shingles, while heavy rain, ice and freeze and thaw cycles loosen the protective granules. Hail and high winds can shorten a roof's life at any age. - Materials and installation: quality materials installed as a complete roofing system, with the old roof torn off rather than covered over, give a new roof its best chance at a long life. - Attic ventilation and insulation: a hot, poorly vented attic can age shingles from underneath. We find both problems more often than you might think, and fixing them can also help with heating and cooling bills. - Trees and shade: overhanging limbs scrape shingles and drop debris, and shaded slopes stay damp longer, which invites moss and algae. - Maintenance: small issues like failing sealant around flashing let water under the shingles over time. Regular roof inspection and maintenance catch those problems before they shorten the roof's life. For more on what wears a roof down, see our post on what affects your roof's lifespan. ## What “one more season” really means here When you're hoping to put off a replacement, “one more season” sounds manageable. In reality, the next few months could put your roof through quite a lot. Roofs across Middle and East Tennessee spend the year dealing with summer heat, heavy rain, strong winds and big temperature swings, and spring brings severe thunderstorms and hail. NOAA counts an average of 2.6 billion-dollar weather and climate disasters a year affecting Tennessee from 1980 through 2024, with severe storms the most common type. A roof that already has worn shingles or weak spots has less protection left when that kind of weather rolls through. Three more months of mild weather is very different from three months that include a hailstorm. Shingles that are already losing their protective layers are less likely to come through another stretch of severe weather intact. ## A quick guide to how much time your roof has left No roofer can look at one worn shingle and tell you the exact date your roof will need replacing. What we can do is look at the roof as a whole and estimate where it sits in its life. These stages give you a general idea: - Five or more years: shingles are lying flat with good granule coverage, and you aren't seeing widespread cracking, curling, missing shingles or recurring leaks. The roof shows relatively little wear. Routine inspections catch isolated problems along the way. - Three to five years: signs of aging are easier to spot, such as some granule loss, minor cracking or curling, or wear around pipe boots and flashing. Replacement may not be urgent, but this is a good time to start planning and budgeting. - Two to three years: wear is widespread, with noticeable granule loss, bald areas, cracking, curling, or repairs coming more often. Replacement is on the horizon. Repairs may still be worthwhile, but weigh their cost against how much time they will buy. - Immediate attention: active leaks, exposed fiberglass, widespread missing or badly damaged shingles, soft decking, or significant storm damage. Have the roof inspected as soon as possible, because these problems let water into the roofing system. Treat these ranges as a planning tool, not an expiration date. If you're counting on another year or two, have the roof checked before you build your budget around that extra time. ## Signs your shingles are near the end Shingles take the brunt of the weather year after year, so they're the best place to look for clues. One damaged shingle usually doesn't tell you much. When the same problems show up across several areas, the roof deserves a closer look. ### Large amounts of granules in the gutter Asphalt shingles are covered in granules that protect the asphalt from sunlight and weather. Losing a few is normal, especially right after a new roof goes on or after a storm. Gutters and downspouts loaded with granules on an older roof are more concerning. Heavy granule loss leaves the asphalt exposed and speeds up deterioration, and you may notice dark or bald patches where the surface has worn away. ### Visible fiberglass mat Once enough of a shingle's outer layers wear off, the fiberglass mat underneath starts to show as fine fibers or a whitish, fuzzy patch. At that point the shingle has lost much of its protection, and that's a strong reason to have the roof inspected rather than counting on it to make it through another storm season. ### Widespread cracking or curling A cracked or curled shingle here and there may be repairable. Cracking and curling across large parts of the roof usually point to age rather than isolated damage. Watch for edges and corners lifting away from the roof, because wind catches those raised sections and tears worn shingles loose. ### Shingles in the yard Finding a shingle, or pieces of one, in the yard after strong winds is worth investigating. Part of the roof now has less protection, even if you can't spot the gap from below. It becomes more concerning when shingles keep coming loose with every storm, because repeated loss can mean the roof has deteriorated past the point where repairs make sense. ### Worn or corroded flashing Flashing is the thin metal that seals the places where the roof meets a wall, a chimney or a vent. Over time it can corrode, and the sealant around it dries out and cracks, which lets the flashing separate from the roof. Water then finds its way into places it shouldn't be. Rusty flashing or flashing pulling away from the roof is a repair to schedule now. Our post on the importance of roof flashing explains why it matters so much. ### More moss and algae Dark streaks on a roof are usually algae, and they are mostly a looks problem. Moss is different. It holds moisture against the shingles, can lift their edges, and speeds up wear, especially on shaded, damp slopes. A roof that is growing more moss every year is often a roof that is aging faster. ### What you can see from the ground You can't judge every shingle from the driveway, but a slow walk around the house tells you when something needs a closer look. Watch for: - Missing or shifted shingles: empty spots or shingles out of line leave the layers underneath exposed to rain. - Curling edges: lifted or curled shingles are easiest to spot when you view the roof from an angle. - Bald or discolored areas: dark patches can show where shingles have lost much of their granules. - Granules near the downspouts: a noticeable pile after rain is another clue an older roof is wearing down. - Pieces of shingle in the yard: check around the house after strong winds or severe weather. - An uneven roofline: a dip or sag deserves prompt attention, especially if it wasn't there before. - Water stains indoors: ceiling stains or damp spots in the attic can point to a leak even when nothing looks wrong outside. You can check all of this without setting foot on the roof. If something looks questionable, take a picture from the ground and show it to your roofer rather than climbing up for a better look. ## What only an in-person inspection can tell you Drone photos give a great view of areas that are hard to see from the ground. They can show missing shingles, obvious storm damage and exposed areas without anyone walking across an aging roof. What a drone can't do is touch anything. A photo won't tell you that the decking feels soft underfoot, that flashing has started to loosen, or that the shingles have lost their flexibility. It also can't show how well the shingles are still sealed down. A drone is a good way to document what a roof looks like, but deciding how much life is left takes a closer, hands-on look by someone who knows what worn shingles feel like underfoot. ### How the shingles feel matters As asphalt shingles age they become brittle. On an inspection, a roofer can carefully check whether the shingles still lift far enough to complete a repair without cracking. That's an important distinction on an older roof. If replacing one damaged shingle is likely to break the ones around it, your repair options get limited fast. Walking the roof also shows how well the shingles are still sealed and how securely everything is holding. Those details answer the question pictures can't: can this roof still be repaired without creating more problems? That's exactly what we look for when someone asks whether their roof will last another year. ## When to stop stretching it, and when you can wait An older roof doesn't automatically need to come off before the next storm. But there are times when waiting turns a planned replacement into a bigger repair bill. ### Think twice about waiting if you see these - Active or recurring leaks: water is already getting through, where it can damage decking, insulation, ceilings and walls. - Widespread shingle failure: large areas of cracking, curling, bald shingles or exposed fiberglass have moved well beyond an isolated repair. - Shingles too brittle to repair: if surrounding shingles crack when a roofer lifts them, even a small repair is hard to do properly. - Soft or damaged decking: rotted decking needs to be fixed, not covered by another temporary patch. - Repeated shingle loss in storms: losing shingles every time strong winds blow through is a sign the roof is struggling to stay intact. - Repairs that keep piling up: several service calls in a short time eat into money that could go toward a new roof. If several of these are happening at once, ask your roofer how much a repair really buys you. Spending money to gain a few weeks may not be worth it when replacement is already close. ### Encouraging signs you have time to plan - The shingles still lie flat: fading and moderate granule loss show age, but secure, intact shingles are in better shape than ones that curl, crack or come loose. - There are no active leaks: a dry attic and stain-free ceilings mean the roof is still keeping water out. - The damage is isolated: a failed pipe boot, a small flashing problem or a handful of missing shingles may be worth repairing when the rest of the roof is sound. - The shingles can still be worked: if a roofer can lift and repair them without the surrounding material cracking, you have more options. - You aren't constantly calling for repairs: an occasional fix is different from chasing a new leak every few months. - The inspection finds nothing urgent: a roofer may confirm the roof is worn but stable enough to give you time to budget. If your roof falls into this group, use the time to prepare. Starting a budget now puts you in a far better position than letting the next big storm make the decision for you. When the time does come, our roof replacement page explains how we approach it. ## Questions homeowners ask about roof life ### How long should my roof last? It depends on the shingles and how the roof has been cared for. InterNACHI estimates around 30 years for architectural asphalt shingles in good conditions, but weather, installation, attic ventilation and maintenance can all shorten that, which is why an inspection tells you more than the roof's age does. ### Can a roof with exposed shingle mat be repaired? Sometimes. Exposed fiberglass usually means the shingles are far along. If it's limited to a small area and the shingles around it aren't too brittle, a repair may still work. If you can see exposed mat in several areas, it's time to start talking about replacement. ### How can I tell if my roof will last another season? Have a roofer inspect it in person. Age matters, but so do granule loss, cracking, past repairs, leaks and how the shingles hold up when they're handled. An inspection before winter or storm season tells you how comfortable you should be with waiting. ### Do cracked pipe boots mean I need a new roof? No. A cracked pipe boot on its own usually doesn't mean you need a new roof. Pipe boots wear out and can usually be replaced without touching much around them. On an older roof, we also check the surrounding shingles to make sure a bigger problem isn't developing. ### Does heavy granule loss mean I need a new roof? Not on its own, but it means your shingles are wearing down. Bald patches, exposed fiberglass, cracking or curling alongside granule loss make replacement more likely. If you're finding piles of granules in your gutters, it's worth a closer look. ### Should I pay for a repair if my roof only has a year or two left? It can make sense when the repair is small and buys the time you need. Stopping a leak is very different from putting serious money into a roof you already know is on its way out. Ask your roofer what the repair involves and how much time it's realistically expected to buy. ### What if I can't afford a new roof right now? Start by finding out whether the roof needs replacing now or whether a repair can safely buy time. If replacement can't wait, financing is available upon credit approval, and we accept cash, checks, credit cards and debit cards. Our post on paying for a roof replacement walks through other options. ### Are there programs that can help if I can't get financing? Some Tennessee homeowners may qualify for home repair assistance. The Tennessee Housing Development Agency runs an Emergency Repair Program for qualifying older homeowners and homeowners with disabilities, and homeowners in eligible rural areas can ask USDA Rural Development about its Section 504 home repair loans and grants. Check each program's current rules, since eligibility depends on income, age and location. ## Find out where your roof stands If you're trying to make it through one more winter or storm season, knowing your roof is 15 or 20 years old only gets you so far. What matters is how it's holding up today. You may have time to plan, a repair may safely buy that time, or the roof may be too far gone to wait. Any of those is better to know before the next big storm than after it. Mobley Brothers Roofing & Renovation has inspected, repaired and replaced roofs across Middle and East Tennessee since 2007. We walk the roof when it's safe, photograph what we find, and give you a straight answer. If you're near our Lebanon office, start with roof repair in Lebanon, TN; in East Tennessee, see roof repair in Knoxville. Call our Lebanon office at (615) 455-3131 for Middle Tennessee or our Knoxville office at (865) 205-0800 for East Tennessee, or request a free roof inspection online. If you've got another season left, we'll tell you. If you don't, we'll show you why. ## Contact - Mobley Brothers Roofing & Renovation of Lebanon: 112 Tirzah Street, Lebanon, TN 37087. Phone (615) 455-3131. - Mobley Brothers Roofing & Renovation of Knoxville: 10440 Laurel Pointe Lane, Knoxville, TN 37931. Phone (865) 205-0800. - Hours: Open 24 hours, 7 days a week. Calls answered or returned day or night. - Contact page: https://www.mobleybros.com/contact-us/