How To Look At A House

McGarry and Madsen's home inspection blog for buyers of  

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Frequently Asked Questions (FAQ) about Roof Defects

Wednesday, August 11, 2021

A roof protects everything in the home underneath it, but most homeowners don’t pay their roof much attention until something goes wrong, followed by a frantic rush to fix it—especially in Florida’s summer rain and hurricane season. Here’s a list of links to our articles about roof defects, their causes, and what to look for: 

Why is my roof leaking? 

What would cause a roof to sag?

What causes a shingle roof to deteriorate faster and fail prematurely?

• Why is granule loss a problem for an asphalt shingle roof? 

• What causes roof shingles to curl up at corners?   

• What causes bubble-like blisters in a built-up and gravel roof?  

• Why are there leaves in my attic? 

• How can I inspect my roof for hurricane damage? 

What causes shingles to buckle along a line on the roof?

• Why is premature curl of roof shingles a problem?

Why is my roof sheathing sagging between the trusses? 

• What can I do to prevent roof leaks?

• Why is a popped nail in a shingle roof a problem? How do I fix it? 

• What causes a lump or dip in the roof? 

• What are the dark lines running parallel to shingles on my roof?

• What causes a sagging roof ridge line?  

• Should I buy a house that needs a new roof?

• Should I buy a house with an old roof? 

• What does "lack of tab adhesion" in an asphalt shingle roof mean?

• Why do roof edges start leaking?

• What causes small areas of pitting or pockmarks in an asphalt shingle roof?

• Why do my dormer windows leak? 

• The inspector says that a missing kickout flashing caused water damage inside the wall. What's "kickout flashing"? 

• How does a home inspector find roof leaks? What about wet spots in the walls?

• Do stains on the ceiling mean the roof is leaking?

• How can I tell if the house needs a new roof?  

What would cause a new asphalt shingle roof to have loose tab adhesion (sealant strips)?  

  Is it normal for a new shingle roof to lose granules? 

• What causes ponding (standing water) on a flat roof? 

• What are the signs my flat roof needs to be replaced?

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