Shingles & storm
Why Are My Roof Shingles Curling at the Edges?
Raised shingle edges can involve aging, moisture or installation conditions. Curling may also increase vulnerability to wind.
Understand the problem →THE HOMEOWNER’S FIELD GUIDE
Something wrong overhead?
Start with what you see.
A stain, a drip, a shingle in the yard. Understand what it could mean, what to look for safely, and which questions to ask next.
Find your symptom ↓What are you noticing?
26 answers · Showing 13–24
Surface changes
What Are the Black Streaks on My Roof?
Dark streaks can be associated with algae. Discoloration alone does not establish that a roof leaks or needs replacement.
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Surface changes
Is Moss Growing on My Roof a Problem?
Moss can hold moisture around shingles and hide their condition. Treatment should suit the roof material and its condition.
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Edges & drainage
Why Is Water Still Standing on My Flat Roof?
Persistent water on a low-slope roof can involve blocked outlets, low spots or deflection. A puddle does not by itself identify a leak.
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Repair decisions
Why Does My Roof Look Like It Is Sagging?
A dip may involve decking, framing or original roof geometry. A new or changing sag needs prompt assessment.
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Leaks & water
Can the Pipe on My Roof Be Causing a Leak?
A roof penetration needs a weather-tight connection. Water near a pipe may involve its boot, flashing or roofing above it.
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Attic & ventilation
Why Is My Attic So Hot in Summer?
Attics can be much hotter than living spaces. Comfort problems need a review of air sealing, insulation, ducts and ventilation together.
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Leaks & water
Why Is the Metal Flashing Pulling Away from My Roof?
A visible flashing gap may admit water. Its significance depends on the joint type and how the metal is integrated with roofing and the adjoining wall.
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Shingles & storm
Roof Nail Pops and Exposed Nails: What Do They Mean?
A raised nail can lift the shingle above it, while an exposed nail may indicate a different fastening detail. The location and surrounding roof condition determine what needs correction.
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Leaks & water
Why Is My Roof Leaking Near a Valley?
A valley carries runoff from two roof slopes. Debris, damaged flashing or an incorrectly integrated roofing detail can let concentrated water reach the roof deck.
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Leaks & water
Can a Ridge Vent Leak During Wind-Driven Rain?
Water near the roof peak can involve ridge caps, the vent installation or another moisture source. The product and the conditions when wetting occurs matter.
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Surface changes
Why Do My Roof Shingles Have Bubbles or Blisters?
Small raised blisters in shingles are different from a broad roof buckle. Their cause and significance need assessment before deciding on cleaning, repair or a warranty inquiry.
Understand the problem →SAME SYMPTOM. DIFFERENT CAUSES.
A ceiling stain does not always mean a roof leak.
Rainwater, a plumbing leak and attic condensation can leave similar marks. The timing and location help narrow the possibilities.
After rain
Look for a connection to weather, roof openings and exterior walls.
During cold weather
Widespread attic moisture may involve condensation and indoor air leakage.
After using plumbing
A bathroom or pipe above the stain may point to a different trade.
Keep exploring
Use these answers alongside project photographs, cost planning and service details.