Why Above-Average Rainfall in East Tennessee Makes Roof Inspections More Important Than Ever

Above-Average Rainfall and What It Means for Your Roof

East Tennessee has already seen one of its wettest years on record—and it’s not over yet. With Knoxville experiencing its 11th wettest May and a high probability of continued rainfall through the summer, homeowners should be paying close attention to the condition of their roofs. If you’ve been putting off a roof inspection, this is your sign not to wait.

How Much Rain Has East Tennessee Seen?

In 2025, Tennessee recorded its 24th wettest January through May since 1895, and May alone brought nearly 7 inches of rain to the region. That’s over 2.5 inches more than usual. According to the NOAA seasonal outlook, June through August is also projected to be wetter than average in East Tennessee.

While rain is great for gardens, it’s not so great for your roof—especially if minor issues are left unchecked.

Common Roof Issues Caused by Excessive Rain

Excess moisture can speed up wear and tear on your roof and make existing problems worse. Here are a few issues East Tennessee homeowners should watch for:

  • Water Intrusion: Cracked shingles, loose flashing, and unsealed vents can let water into your attic or ceiling.

  • Mold and Algae Growth: Persistent moisture and shade promote algae and mold, which can stain your roof and reduce shingle life.

  • Gutter Overload: Heavy rains can overwhelm gutters, causing water to back up under the roof edge or pool around your foundation.

  • Rot and Structural Damage: Soaked underlayment or decking can weaken your roof’s structure, leading to costly repairs.

Why Preventative Roof Maintenance Matters

Routine inspections help identify and fix small issues before they become major—and expensive—problems. This is especially critical during wet seasons when your roof is under constant pressure.

Preventative maintenance includes:

  • Checking shingles for wear or damage

  • Clearing debris from the roof and gutters

  • Sealing exposed fasteners

  • Inspecting flashing and ventilation

  • Evaluating attic insulation and signs of moisture

Timing Is Everything: Don’t Wait for a Leak

By the time a leak becomes visible inside your home, the damage has likely already spread. Scheduling a professional roof inspection now ensures that your roof is ready to handle whatever the East Tennessee summer brings.

Protect Your Home with a Trusted Knoxville Roofing Expert

Garrett Roofing has been helping Knoxville-area homeowners navigate seasonal roofing challenges for over 20 years. Our expert team understands the unique weather patterns of the Smoky Mountain region and offers:

  • Free roof inspections

  • Preventative maintenance services

  • Gutter inspections and repairs

  • Roof replacement and insurance assistance

Looking for roof repair or inspection near you? With over two decades of experience, Garrett Roofing’s dedicated professionals are ready to protect your home from this season’s heavy rains.

Contact us today to schedule your free roof inspection!

At Garrett Roofing, roof repair and replacement are our specialties. Under the experienced leadership of Matt Garrett, Garrett Roofing has been serving the East Tennessee area since 2005. We are a licensed General Contractor and we offer a full range of roofing services, repairs, gutters and inspections. We also assist with disaster recovery with experienced teams available to address damages to your roof after a wind, ice or hail storm.

Schedule a FREE roof inspection today.


GARRETT ROOFING     Knoxville’s Roofing Professionals