Most roofs don’t fail all at once. They give warning signs for years, and catching them early can be the difference between a planned replacement and an emergency after a storm. Here are the signs your roof needs replacing, and how to tell when a repair is enough.
You can check most of these from the ground with binoculars, or from inside your attic with a flashlight. Please don’t climb onto the roof yourself.
1. The roof is getting old
Age is the first thing to consider. Many asphalt shingle roofs last roughly 20 to 30 years, depending on shingle quality, ventilation and installation. If your roof is in that range, or you don’t know how old it is, it’s worth a professional inspection even if nothing looks wrong yet.
2. Curling, cupping or cracked shingles
Shingles should lie flat. Look for:
- Curling: edges turning up
- Cupping: the middle sinking while the edges lift
- Cracks and brittle-looking shingles
These are signs the shingles are drying out and losing their ability to shed water. A few damaged shingles can be replaced, but if it’s happening across the roof, replacement is usually the better investment.
3. Missing shingles
Strong winds can tear off shingles, especially older ones. One or two missing shingles is a repair. But if shingles keep blowing off after every storm, the roof is telling you it’s worn out.
4. Granules in the gutters
Asphalt shingles are covered with granules that protect them from the sun. As shingles age, they shed granules, which collect in your gutters and at the bottom of downspouts. Bald or dark patches on the roof mean the shingles are wearing thin.
(A new roof sheds some loose granules at first, which is normal.)
5. Daylight or water stains in the attic
Go into your attic on a sunny day:
- Light coming through the roof boards means there are gaps.
- Water stains, dark spots or damp insulation point to leaks.
- Mold or a musty smell can mean moisture is getting in or the attic isn’t ventilated well.
6. Sagging
A roof line that dips or sags can mean the decking or the structure underneath is weakened by long-term moisture. This needs a professional inspection right away.
7. Leaks that keep coming back
If you’ve repaired leaks more than once, or new leaks keep showing up in different places, patching may no longer be worth the money. Repeated leaks also risk damage to ceilings, insulation and framing.
Repair or replace? A quick guide
A repair is usually enough when:
- The roof is relatively young
- The damage is in one area (a few shingles, one vent, one chimney flashing)
- The decking underneath is solid
Replacement makes more sense when:
- The roof is near or past its expected lifespan
- Damage is spread across the roof
- There’s sagging or widespread moisture in the attic
- Repairs keep adding up
Philadelphia and South Jersey weather is tough on roofs
Freeze-thaw cycles, ice dams, summer heat and coastal storms all take a toll. Clogged gutters make it worse by letting water back up under the shingles in winter. A roof check each spring and fall, plus clean gutters, goes a long way. Read more in our guide to gutter guards.
Get a professional roof inspection
Not sure what you’re looking at? We’ll inspect your roof and tell you honestly whether it needs a repair or a replacement. We handle roof replacement, roof repair and attic work across Philadelphia, Camden and South Jersey. Curious what goes into the price? See what affects roof replacement cost. Request a free quote.
