Roofing Key Danger Signals and Repairs


Key Danger Signals: Wind-Driven Rain

Attic Leakage-Wet, Rainy Climates

Leakage in attic after wind-driven rain.

Possible cause: Leaky or inadequate shingle under-laying or deteriorated flashing.


Key Danger Signals: Icy Build-Up

Attic Leakage-Icy, Winter Climates

Leakage in attic after ice build-up.

Possible cause: Inadequate shingle under-laying allows water from ice dams to leak into attic.


Key Danger Signals: Peeling Paint

Blistering/Peeling Paint

Blistering and/or peeling of interior and/or exterior paint.

Possible cause: Excessive temperature or high humidity due to poor attic ventilation.


Key Danger Signals: Stains & Mildew

Interior Stains

Stains on interior ceilings and walls or mold and mildew growth.

Possible cause: Inadequate or faulty shingle under-laying allowing leakage or inadequate ventilation.


Key Danger Signals: Decay of Shingles

Exterior Decay

Decay of roof shingles, sheathing, and/or siding.

Possible cause: Poor attic ventilation.


Key Danger Signals: Missing or Cracked Shingles

Cracking and Curling

Missing, cracked or curled shingles.

Possible cause: Shingles have reached the end of their useful life.


Key Danger Signals: Dark & Dirty Looking

Dirty-Looking Areas

Dark, “dirty-looking” areas on your roof.

Possible cause: Environmental pollutants, vegetation, fungus or algae, loss of granules due to age of shingles.


Key Danger Signals: Excessive Energy Costs

Energy Costs

Excessive energy costs.

Possible cause: Insufficient attic ventilation causes heating/cooling system to run excessively

In warm weather, inadequate ventilation will trap hot air in the attic. This will cause air conditioning systems to work harder, or leaving your home’s interior hotter and less comfortable. Attic Ventilation: In both hot and cold weather insufficient attic ventilation may cause moisture in the attic to become trapped and condense on the rafters. This condensed moisture can drip down onto the insulation and reduce its effectiveness. Excessive energy costs can result.