Metal roofs are known for their long-lasting performance, energy efficiency, and weather resistance—but like any roofing system, they’re not invincible. Whether it’s a small leak or a major panel issue, knowing how to repair a metal roof can save time, money, and potential structural damage.

In this guide, the experts at Kraftman Roofing break down everything you need to know about repairing a metal roof the right way.

Common Metal Roof Issues That Require Repair

Understanding the root cause of your roofing problem is the first step to an effective repair. Here are the most common metal roof problems:

• Leaks from seams or fasteners

• Rust or corrosion

• Loose or missing fasteners

• Damaged flashing

• Panel dents or punctures

• Expansion and contraction (thermal movement)

Step-by-Step: How to Repair a Metal Roof

Before starting any repair work, always prioritize safety. If the roof is steep or high, or if you're unsure about the condition, call a professional roofing contractor like Kraftman Roofing.

1. Inspect the Roof Thoroughly

Look for visible damage, standing water, rust, gaps at seams, or fasteners that have come loose. Use binoculars or a drone for a safer inspection if needed.

2. Clean the Affected Area

Before you apply any sealant or patch, make sure the area is clean and dry. Use a wire brush to remove rust and debris, and wipe with a cloth soaked in mineral spirits.

3. Tighten or Replace Loose Fasteners

Over time, screws and rivets can back out due to thermal movement. Replace missing or corroded fasteners with rubber-washered roofing screws to ensure a watertight seal.

4. Seal Leaks with Roofing Sealant

For small gaps or holes, apply a high-quality elastomeric or butyl-based sealant. Be generous, and smooth it out to ensure full coverage.

5. Patch Larger Holes or Punctures

If the metal panel has a puncture or large rust spot:

• Cut a metal patch of the same material about 2 inches larger than the damaged area.

• Round the corners to reduce stress points.

• Use sealant under the patch and screw it down with gasketed fasteners.

• Seal the edges of the patch with another layer of sealant.

6. Repair or Replace Damaged Flashing

Flashing around chimneys, vents, or skylights can allow water intrusion if damaged or improperly installed. Remove the damaged section and install new flashing sealed with roofing caulk or tape.

7. Apply Roof Coating (Optional but Recommended)

If your metal roof is aging or has multiple repairs, consider applying a roof coating for added waterproofing and energy efficiency. This step can extend your roof’s lifespan by 10+ years.

Tools and Materials You May Need

• Safety harness and ladder

• Drill or screw gun

• Metal snips

• Roofing sealant or caulk gun

• Replacement fasteners

• Sheet metal patches

• Wire brush and cleaning cloths

• Roof coating and brush/roller

DIY vs. Professional Metal Roof Repair

While some small repairs can be done yourself, most metal roofing issues—especially leaks or structural concerns—are best handled by a professional metal roof repair contractor. Here’s why:

Hiring a trusted contractor like Kraftman Roofing ensures your metal roof stays watertight and structurally sound.

Ohio Weather & Metal Roof Performance

Ohio’s weather extremes—from freezing winters to stormy springs—can accelerate roof wear and tear. Regular maintenance and proactive repairs are essential to avoid costly replacements.

At Kraftman Roofing, we offer seasonal inspections, emergency repairs, and long-term maintenance plans for homes and businesses throughout Cincinnati, Dayton, and Northern Kentucky.

Call us Now for a Free Estimate

If you’re searching for metal roof repair contractors in Ohio, contact Kraftman Roofing.  Don’t let a small issue turn into a major leak—get your metal roof repaired by the professionals.

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