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A Bad Roofing Job: Hidden Signs Revealed

  • Writer: Ailany M
    Ailany M
  • Mar 17
  • 2 min read

Your roof is one of the most important parts of your home. It protects you from rain, snow, and harsh weather. But what if the job wasn’t done right? Some roofing mistakes are easy to spot—like leaks or missing shingles—but others are hidden until they cause serious problems. Here’s how to tell if your roof wasn’t installed properly.


Hands on black roofing material around a chimney on a sunny day.

1. Shingles That Look Uneven or Wavy

Shingles should lay flat and neat. If they look bumpy, uneven, or some edges are curling up, that’s a red flag. This could mean the shingles weren’t installed correctly or that low-quality materials were used. Over time, this can cause leaks and other damage.


Damaged roof with missing and broken gray shingles, exposing underlying layers.


2. Metal Seals (Flashing) That Are Loose or Missing

Flashing is the metal used around chimneys, vents, and skylights to keep water out. If you notice gaps, missing pieces, or loose metal, water can easily seep in, leading to mold and damage inside your home.


3. Nails That Are in the Wrong Place or Sticking Out

Nails should be properly placed and secure. If nails are sticking out, missing, or in the wrong spot, shingles can come loose, making your roof vulnerable to wind and rain.


4. A Roof That Looks Uneven or Sagging

Your roof should have a smooth, even surface. If you notice any areas that dip down or look sunken, it could mean something wasn’t installed correctly or that water damage has weakened the structure.


Close-up of a flat roof with a small puddle.

5. Shingle Pieces in Your Gutters

Shingles have a grainy surface that protects them from sun and rain. If you find a lot of these granules in your gutters soon after a new roof was installed, it may mean the shingles are poor quality or weren’t put on correctly.


6. Water Stains or Leaks Inside Your Home

If you see brown stains on your ceiling or walls, or if water drips inside your home when it rains, your roof isn’t doing its job. Even a small leak can turn into a big problem if not fixed quickly.


7. A House That Feels Too Hot or Humid

Your roof needs proper airflow to keep your home cool and dry. If your attic feels extremely hot or if you notice mold or mildew, your roof’s ventilation might not be working correctly.


What to Do If You Suspect a Bad Roofing Job

If you notice any of these signs, don’t wait until the damage gets worse. Here’s what you can do:


  • Get an inspection – A professional roofer can check your roof and let you know if there’s a problem.


  • Check your warranty – Some materials and installation work come with warranties. See if yours is covered.


  • Fix small issues before they become big problems – Quick repairs now can save you thousands of dollars later.


At All In One Roofing, we believe in doing the job right the first time. If you’re worried about your roof or need expert advice, give us a call for a FREE inspection.


Protect your home with a roofing team you can trust!

 
 
 

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