When inspecting a roof, your home inspector may find several common defects that homeowners and buyers should be aware of. Addressing these issues early can prevent more significant damage and costly repairs down the line. Here are the top three roofing defects to watch for:

Pipe Stack Flashing Issues

Pipe stack flashing is a critical component of roofing that prevents water from leaking through areas where pipes penetrate the roof. This flashing typically consists of a rubber boot or collar that tightens around the pipe to keep water out. Over time, exposure to the sun and weather can cause the rubber to become brittle, leading to cracks, rips, and tears. These gaps can create opportunities for leaks, which can cause significant damage if not addressed.

**Tip:**
Repairs are generally inexpensive and straightforward but can have a substantial impact on preventing leaks.

Step Flashing and Kickout Flashing Issues

 

Step flashing is used where a roof meets a wall, such as on dormers or second stories. It consists of small metal pieces installed in a shingled manner, underneath the shingles and extending up the wall. Improperly installed or missing step flashing can lead to leaks and water damage.

 

**Tip:**
Ensure that step flashing is correctly installed with shingles overlapping it, and that it extends up the wall. Common issues include flashing installed upside down or wall siding placed under the flashing.

    Kickout flashing is the bottom-most piece of step flashing, designed to direct water away from the wall and into the gutter system. Missing kickout flashing can funnel water behind the siding, leading to extensive water damage inside the wall. This issue is particularly common in homes with siding or stucco, and it can cause significant damage if not addressed.

     

    **Tip:**
    Installing kickout flashing is a simple and cost-effective solution during roof installation or repair, and it helps prevent costly water damage.

    Aging and Wear of Asphalt Shingles

     

    Asphalt shingles have a typical lifespan of 20 to 30 years, depending on the manufacturer’s warranty and environmental factors. Over time, exposure to sun and weather conditions can cause shingles to become brittle, crack, or lose granules. Common signs of aging include spider cracking, pock marking, missing shingles, curled edges, and holes.

     

    **Tip:**
     Addressing issues with aging shingles can prevent leaks and extend the life of the roof.

    Bonus: Brick Chimney Issues

    While not technically a roofing issue, problems with brick chimneys are often discovered during roof inspections. Common issues include deteriorating mortar, spalling bricks, or missing chimney caps or flue covers. These issues can also affect the overall condition of the roof and may require attention.

     **Tip:**
    Regular inspection and maintenance of chimneys are essential to ensure they do not contribute to roof problems or pose safety hazards.

    Understanding these common roofing defects can help homeowners and buyers make informed decisions and address issues before they escalate. For any roofing concerns, consulting with a professional roofer can provide a thorough assessment and effective solutions.

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