Quick Answer
What are the signs you need a new roof?
Signs you need a new roof include: shingles older than 20 years, widespread granule loss, multiple leaks, sagging areas, daylight visible in attic, or a major storm event.
Central Texas is genuinely one of the harshest roofing climates in the United States. Bell County homeowners contend with summer attic temperatures that routinely exceed 140°F, intense UV radiation that degrades shingles faster than in northern states, and frequent hail events that cause cumulative damage over time. A roof that might last 25–30 years in Maine may be exhausted in 15–18 years here.
Knowing when to replace your roof — rather than continuing to repair it — is one of the most important decisions a homeowner makes. Replace too early and you waste money; wait too long and a failing roof causes water damage, mold, and structural problems that cost far more than the roof itself. Here are the 10 signs that tell you it's time.
The 10 Warning Signs
Shingles Older Than 20 Years
Asphalt shingles in Central Texas have an effective lifespan of 15–20 years. If your roof was installed before 2005, it has already outlived its warranty period in this climate. Older shingles become brittle, lose flexibility, and can no longer properly shed water. Even if there are no obvious failures yet, an aging roof is a liability — one bad hailstorm away from widespread damage that insurance may not cover if they determine the roof was already at end-of-life.
Widespread Granule Loss (Fills Your Gutters)
Asphalt shingles are coated with ceramic granules that protect the asphalt layer from UV degradation. As shingles age — or after significant hail events — those granules loosen and wash into your gutters. Check your gutters after rain: a small amount of granules is normal; a thick layer of dark grit is not. Bald patches where the underlying asphalt mat is visible mean those shingles have lost their UV protection and will deteriorate rapidly.
Curling, Cupping, or Buckling Shingles
Healthy shingles lie flat against the decking. When you see shingles curling upward at the edges (cupping) or the center rising up (clawing), it signals the shingles have dried out, become brittle, or are reacting to moisture-related movement in the decking below. Buckling — where shingles appear wavy or rippled across the roof — often indicates problems with the decking or improper installation of the new shingles over old ones.
Missing Shingles After Multiple Storms
A single missing shingle after a major storm can be repaired. But if you've had multiple shingles blow off in multiple storms, your roof has lost its wind resistance integrity. Modern shingles use a self-sealing strip that bonds adjacent shingles together — once that seal degrades with age, wind resistance drops dramatically. If you're replacing shingles every storm season, replacement is more cost-effective than ongoing patchwork.
Daylight Visible Through Attic Boards
On a bright day, go into your attic and look up. If you see pinpoints of light coming through the decking, you have a serious problem. Any gap that admits light also admits water, insects, and cold air. This level of deterioration means the decking itself has failed — not just the surface shingles. A full replacement including decking repair is necessary.
Sagging Roof Deck
A sagging or drooping area on your roof is a structural emergency. It indicates that the decking — or the structural rafters beneath — have been compromised by moisture, rot, insect damage, or overloading. Do not delay addressing a sagging roof. A sagging deck can fail suddenly, especially under the weight of rain-saturated debris or during a storm. Call for an inspection immediately.
Multiple Active Leaks or Recurring Leaks
A single isolated roof leak in a known problem area (a flashing joint, a pipe boot) is often repairable. But if you have leaks in multiple areas, or the same area has leaked and been "repaired" multiple times without lasting resolution, the roof membrane itself has failed. Recurring leaks are a sign that your roof no longer has a continuous waterproof barrier — patching one spot just drives water to find the next weakness.
Major Storm Event With Documented Hail or Wind Damage
After a significant hailstorm — especially one with stones 1 inch in diameter or larger — a professional inspection is mandatory even if you see no obvious exterior damage. Hail causes "bruising" of asphalt shingles that is invisible from the ground but creates fracture points in the granule layer. These fracture points accelerate degradation dramatically. An insurance-covered replacement after a documented storm event is often the best possible outcome for an aging roof — and it's exactly what your homeowners policy is for.
Mold, Moss, or Algae Growth
Black streaks across your shingles are typically algae (Gloeocapsa magma), which feeds on the limestone filler in asphalt shingles. Green moss or mold are more serious — they hold moisture against the shingle surface and actively degrade the material. While algae can sometimes be treated with zinc strips or proper cleaning, widespread moss or mold indicates chronic moisture retention. This is especially common in shaded areas or roofs with poor ventilation.
Recent Spike in Energy Bills
Your roof system — including shingles, underlayment, decking, ventilation, and attic insulation — is part of your home's thermal envelope. When shingles fail, when ventilation becomes blocked, or when the underlayment loses its integrity, heat transfer into and out of your home increases dramatically. If your electric bill has climbed significantly without an obvious cause, have both your roof and attic inspected. Sometimes the culprit is the roof, not the HVAC system.
Repair vs. Replace: How to Decide
The general rule used by professional roofers and insurance adjusters: if the cost of repairs exceeds 50% of the cost of full roof replacement, replacement is almost always the better investment. Repairs on a failing roof are effectively paying to extend a dying system — the underlying problems continue to worsen.
Consider these factors when making the decision:
- •Age: A roof under 10 years old with isolated damage is a strong repair candidate. A 17-year-old roof with the same damage is not.
- •Scope: Damage confined to one area (flashing around a chimney, a single valley) argues for repair. Damage spread across multiple slopes or areas argues for replacement.
- •Insurance: If a storm event is documented and qualifies for insurance coverage, let insurance pay for replacement rather than spending your own money on repeated repairs.
- •Energy performance: If the failing roof is driving up your energy bills, replacement with modern reflective shingles pays for itself faster.
- •Selling the home: If you plan to sell within 2-3 years, a new roof dramatically improves appraisal value and buyer confidence.
Get a professional roof inspection before making this decision. An honest contractor will give you a straightforward assessment — not just pitch you on the most expensive option. If your roof has hail damage, there may be a path to full insurance-covered replacement regardless of age. Check our roofing cost guide to understand what replacement actually costs in the Killeen area.
Not Sure? Get a Free Inspection.
Our HAAG-certified inspectors will give you an honest assessment of your roof's condition — and tell you plainly whether repair or replacement makes more sense. No pressure, no sales tactics.
Call (409) 977-6461If you've identified multiple signs from this list, don't delay. Roof problems compound quickly— especially through Killeen's summer heat and storm seasons. A roof that's struggling in April may be actively leaking by July.