Key Danger Signals
Don’t get caught with sudden, costly repairs. Keep a close eye on your roof and find out how to spot problems – including these 7 key danger signs – before they severely impact your wallet.
Stains on ceilings and walls - mold or mildew growth
Stains, or worse, mold, can be caused by leaks from outside the house or moisture trapped inside.
Blistering or peeling interior or exterior paint
Moisture trapped in the house due to poor ventilation can cause exterior paint to peel and blister.
Exterior decay in sheathing and/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, or 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.)
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.
Excessive energy costs
Inadequate ventilation can possibly drive up your household cooling costs by trapping hot air in the attic. Attic moisture can also drip into your insulation, reducing its effectiveness.