Critical Roofing Resources

High Wind

Strong winds that typically accompany storms can cause shingles to crack, bend, or fly off, leaving your roof and the interior of your home vulnerable to leaks or further damage.

Hail

Hailstorms rarely last more than 15 minutes, but the damage can be devastating. Hail pounding on your roof can cause dents, missing asphalt, bruising, or cracking in your shingles.

Standing Water

Flat roofs without proper drainage may collect water in uneven areas, while clogged gutters can back water up under your shingles.

Debris

Depending upon the severity of the storm, debris can include anything from branches to yard furniture. It's important to remember that impact damage might not be visible from the surface of the shingle.

A Leak in the Attic

After a strong storm or wind-driven rain, take a look in the attic for signs of leaking. It could indicate damaged shingles, inadequate underlayment or deteriorated flashing.

Blistering or Peeling Interior or Exterior Paint

Moisture trapped in the house due to poor ventilation can cause exterior paint to peel and blister.

Stains on Interior Ceilings and Walls

Stains, or worse, mold, can be caused by leaks from outside the house or moisture trapped inside.

Exterior Decay in Sheathing or Siding

Excess moisture can also contribute to decay.

Missing, Cracked, or Curled Shingles

Dry, cracked, or easily broken shingles have reached the end of their useful life, and it’s time to invest in a new roof.

Dark, Dirty-Looking Areas on Your Roof

Vegetation, fungus, mold, and algae growth can cause dark stains on your shingles. That doesn’t necessarily mean you need a new roof, but if you do choose to replace your shingles, ask for StainGuard® protection — available on many GAF shingles, including Timberline® Cool Series shingles, Timberline® Natural Shadow® shingles, Timberline® ArmorShield™ II shingles, and Timberline Ultra HD® shingles.

StainGuard® protection is available only on shingles with StainGuard® -labeled packaging. See GAF Shingle & Accessory Ltd. Warranty for complete coverage and restrictions.

Excessive Energy Costs

Inadequate ventilation can drive up your household cooling costs by trapping hot air in the attic. Attic moisture can also drip into your insulation, reducing its effectiveness.