Guide to Roofing

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Key Danger SignalsThat Your Roofing System is NOT Protecting Your Home!

Decay of roof shingles, sheathing, and/or siding

Possible cause: Poor attic ventilation.

Leakage in attic after
ice build-up

Possible cause: Inadequate shingle underlayment allows water from ice dams to leak into attic.

Leakage in attic after
wind-driven rain

shingle installer westchester

Possible cause: Leaky or inadequate shingle underlayment or deteriorated flashing

Stains on interior ceilings and walls or
mold and mildew growth

Possible cause: Inadequate or faulty shingle
underlayment allowing leakage or inadequate ventilation.

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

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

Dark, “dirty-looking” areas
on your roof

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

Missing, cracked or curled shingles

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

Excessive energy costs

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

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