Metal roofing has become a top choice for homeowners looking for durability, energy efficiency, and sleek aesthetics. However, no roofing material is completely immune to wear and tear. Even high-quality metal roofs can develop issues over time—especially in places like Keller, TX, where hail, heavy rain, and extreme heat can take a toll on any roofing system. The key to maximizing your investment in a metal roof is recognizing common problems early and knowing when to call in a professional.
1. Oil Canning (Wavy Metal Panels)
Oil canning is a visual issue where flat metal panels appear wavy or distorted. While it doesn’t usually affect performance, it can detract from the roof’s clean aesthetic. This problem often arises due to improper installation, structural movement, or temperature-related expansion and contraction.
Though it’s not structurally dangerous, oil canning can worsen over time. A roofing professional may be able to minimize the issue through tension adjustments or suggest design alternatives like ribbed panels in future installations.
2. Fastener Failure
Fasteners are critical to keeping metal panels secure. Over time, especially in regions like Keller where thermal expansion is common, screws can loosen or back out entirely. If left unaddressed, loose fasteners can lead to panel shifting, leaks, or wind damage.
This is a maintenance issue that should be addressed promptly. Annual inspections by a qualified roofing contractor can catch fastener problems early and prevent larger issues. Replacing damaged fasteners and resealing entry points is a relatively simple fix—when caught in time.
3. Rust and Corrosion
Modern metal roofs are usually coated with protective finishes to resist corrosion, but scratches, poor installation, or exposure to salt and moisture can still lead to rust. Flashing areas, cut edges, and fastener points are especially vulnerable.
Rust is not just a cosmetic issue—it can eventually eat through the metal and compromise waterproofing. If you see reddish-brown streaks or flaking paint, call a professional immediately. Repairs may include applying anti-corrosive sealants or replacing affected panels.
4. Panel Separation or Lifting
High winds or faulty installation can cause metal panels to lift or separate from the roof structure. This leaves your home exposed to water infiltration and further damage during storms. In Keller, where strong winds and hail are frequent, panel lifting is a red flag that needs urgent attention.
This issue is often the result of poorly secured fasteners or underlayment failure. A professional roofer will assess the extent of the damage and determine whether re-fastening or panel replacement is required.
5. Leaks at Roof Penetrations and Flashings
Metal roofs are durable, but areas around chimneys, skylights, and vents are always more vulnerable. Poorly installed or aging flashing can lead to water intrusion, even on newer roofs.
If you notice water stains on ceilings, musty odors, or drips during heavy rain, it’s time to bring in a professional. Flashing repairs and sealant updates can restore watertight protection and prevent further interior damage.
Why Timely Repairs Matter
One of the biggest advantages of metal roofing is its longevity—often 40 to 70 years or more. But without timely maintenance, even the best systems can fail prematurely. Minor issues like loose screws or small rust spots can quickly escalate if ignored.
That’s why it’s important to work with a certified contractor who understands the complexities of metal roofing systems. In Keller, TX, homeowners trust KangaRoof for fast, reliable service and unmatched expertise. As an OC Preferred and Emerald Premium Contractor, KangaRoof uses proven techniques and premium materials to keep your roof performing at its best.
Final Thoughts: Stay Ahead of Costly Repairs
Metal roofs offer incredible value—but only when maintained properly. By watching for these five common problems and acting quickly, you can protect your home and extend the life of your roof for decades.
If you’re unsure about your roof’s condition or you’ve noticed signs of wear, don’t wait for a small problem to turn into a major repair. Call a local expert today to get the peace of mind you deserve.
Read also our blog: 5 Signs You Need to Call a Roofing Pro Now