Quick answer
You likely need a new roof if it is 20 or more years old, shingles are curling or cracking, granules are collecting in the gutters, shingles blow off after most storms, or you see leaks, stains or daylight in the attic. A sagging roofline needs immediate attention.
Most asphalt shingle roofs in New Jersey last somewhere between 18 and 25 years — less on homes exposed to ocean wind and strong sun. Here are the warning signs that it may be time for a replacement instead of another repair.
1. Your roof is 20+ years old
If your home still has its original roof from the late 1990s or early 2000s, it’s living on borrowed time, even if it looks okay from the street.
2. Curling, cupping or cracked shingles
Shingles that curl at the edges or cup in the middle have lost their flexibility and seal. Wind gets underneath them easily.
3. Granules in your gutters
Those sand-like granules protect shingles from UV. When you see piles of them in the gutters or at the downspout, the shingles are wearing out.
4. Missing shingles after every storm
An occasional blow-off happens. If you’re calling for repairs after every windy week, the shingle seal strips have failed across the roof.
5. Leaks or stains in the attic
Look in the attic after a heavy rain. Water stains, damp insulation or daylight through the boards all point to serious problems.
6. A sagging roofline
A roof that dips or sags can mean rotted decking or structural issues. Call a professional right away.
7. Moss, algae and dark streaks
Streaks are often cosmetic, but thick moss holds moisture against the shingles and shortens their life — common on shaded roofs in Jackson, Howell, Manchester and other wooded towns.
Repair or replace?
If damage is limited and the roof is younger, a roof repair is often the right call. If you see several of these signs, a full roof replacement will save money over repeated repairs. We’ll give you an honest opinion either way — call (908) 636-9745.
Frequently Asked Questions
How long does a roof last in New Jersey?
Most asphalt shingle roofs last roughly 18 to 25 years. Roofs exposed to strong ocean wind and sun, or with poor attic ventilation, can wear out sooner.
Is it cheaper to repair or replace a roof?
A repair is cheaper up front when damage is limited and the roof is younger. When a roof is near the end of its life or leaks in several places, replacement usually costs less over time.
Can moss damage my roof?
Yes. Moss holds moisture against shingles and can lift them, shortening the roof’s life. It is common on shaded roofs under heavy tree cover.