A poorly installed roof isn’t just an eyesore—it can lead to costly repairs, leaks, and long-term structural damage. If you live in Chambersburg, Shippensburg, Waynesboro, Greencastle, Mercersburg, Fayetteville, Scotland, St. Thomas, or Orrstown, here are 12 warning signs that your roofing job may not have been done right.

1. Misaligned or Crooked Shingles
If your shingles aren’t lined up properly, it’s a clear sign of poor workmanship. Shingles should be evenly spaced and follow a straight line. Crooked or staggered shingles can mean the roofer rushed the job or didn’t measure correctly.

2. Exposed or Improperly Installed Flashing
Flashing is critical in preventing leaks around chimneys, vents, and valleys. If it’s exposed, missing, or installed incorrectly, water will find its way into your home. Done Right Exteriors ensures proper flashing placement to protect your roof long-term.

3. Cuts in Your Shingles from a Utility Knife
Visible cuts or gouges in shingles indicate a careless installer. These weak spots make your roof more vulnerable to leaks and premature failure. A professional roofer takes care to avoid damaging materials during installation.

4. No Drip Edge Installed
A drip edge is a metal strip along the roof’s edge that directs water away from the fascia and into the gutters. If it’s missing, water can seep behind the gutters, leading to rot and mold.

5. Improper Nailing
Shingles must be nailed in the correct spots and at the proper depth. Overdriven, underdriven, or misaligned nails can compromise the roof’s durability. Done Right Exteriors follows manufacturer guidelines to ensure nails hold your shingles securely in place.

6. Uneven or Sagging Roofline
A well-installed roof should have a straight, even appearance. If you notice dips, waves, or sagging areas, it could indicate structural issues or poor installation techniques.

7. Missing or Skipped Underlayment
Underlayment is a critical moisture barrier beneath your shingles. If your roofer skipped this step, your roof is more prone to leaks and weather damage.

8. Poorly Sealed Valleys
Valleys are where two slopes of your roof meet, making them a common weak point. If these areas aren’t sealed correctly, water will channel into your home instead of off the roof.

9. Inconsistent or Patchy Roof Appearance
If your roof looks like it’s made of different materials, colors, or textures, it’s a red flag. This could mean the roofer used leftover or mismatched materials instead of a uniform, high-quality product.

10. Improper Ventilation
A good roofing job includes proper ventilation to prevent moisture buildup and heat damage. Without it, your attic can overheat in the summer and become a breeding ground for mold in the winter.

11. Stains or Water Spots in Your Attic
Check your attic after a roofing job. If you see stains, water spots, or mold, it’s a sign that water is already getting through due to poor sealing or flashing.

12. Roofers That Won’t Provide Proof of Licensing & Insurance
A reputable roofing company should have proper certifications, licensing, and insurance. Done Right Exteriors is Owens Corning-certified and A+ rated with the BBB, ensuring quality work and peace of mind.

What to Do If You Spot These Issues
If you suspect a bad roofing job, don’t wait—schedule a professional inspection. Done Right Exteriors provides expert assessments and top-tier roofing solutions for homeowners in Chambersburg, Shippensburg, Waynesboro, Greencastle, Mercersburg, Fayetteville, Scotland, St. Thomas, Orrstown, and surrounding areas.
Need a second opinion? Call Done Right Exteriors today for a free, no-obligation inspection. Don’t let a poor roofing job put your home at risk!