Shingle Roofing: What You Need to Know About Resealing

If your asphalt shingle roof is starting to look worn, but you're not ready for a full replacement, shingle resealing might be an option. Here's what homeowners in Colorado and Georgia need to know.

What Is Shingle Resealing?

Shingle resealing involves re-adhering asphalt shingles that have started to lift, curl, or come loose. Over time, sun exposure, hail, wind, and natural aging can cause the adhesive strip on shingles to weaken. Resealing helps restore that bond.

Key Steps in the Process:

• Inspection to find curled, lifted, or flapping shingles.

• Cleaning to remove dirt and debris under lifted shingles.

• Re-adhering using roofing sealant or asphalt mastic.

• Pressing or weighting the shingle to ensure a strong bond.

When Should You Reseal Asphalt Shingles?

Here are common signs your shingles may need resealing:

• Shingles lifting at corners or edges

• Curling or buckling shingles

• Wind has loosened tabs, but there’s no major damage

• Your roof is under 15 years old and still structurally sound

If you live in hail-prone areas like Denver, Fort Collins, or Macon, resealing may help prevent water infiltration between insurance claims or as a temporary fix.

Is Resealing Worth It?

Resealing is not a full restoration. It’s a short-term maintenance step that helps:

• Prevent leaks

• Reduce risk of wind damage

• Extend the life of your roof by a few years

But it’s not always recommended. According to ARMA (Asphalt Roofing Manufacturers Association), many shingles are designed to reseal themselves with heat from the sun. Applying extra sealant can interfere with ventilation or warranty terms.

For severely aged or brittle shingles, resealing is not effective and a full replacement may be more cost-effective.

Can You DIY Shingle Resealing?

Yes, but with caution.

• Use a roofing-specific sealant, not general caulk

• Don’t seal under every tab—only the loose ones

• Avoid over-application which can trap moisture

• Never seal in cold or wet conditions—wait for a dry day above 70°F

For homes in colder climates like Colorado Springs or higher altitudes, professional help is advised to ensure proper adhesion during cooler months.

FAQ

How long does resealing shingles last?

1–5 years, depending on the age of the shingles, weather, and sealant used.

Can resealing prevent hail damage?

No. It may reduce wind lift, but hail will still cause granule loss and bruising. Resealing isn’t a substitute for a full hail inspection.

Will resealing void my roof warranty?

Possibly. Always check the manufacturer’s guidelines before applying any sealants.

Call the Experts Before You Seal

If you’re unsure whether your roof needs resealing or a full replacement, our pros at Roof Nuts can help.

• Colorado Office: RoofNutsCO.com | Call 303-276-2403

• Georgia Office: RoofNutsGA.com | Call 404-476-6851

We inspect, reseal, repair, and replace—always with honesty and no pressure.

Let us take the guesswork out of your roof care. Reach out today for a free, no-obligation inspection.