Metal roofing is often hailed as one of the most durable, energy-efficient, and long-lasting roofing options. However, there are misconceptions, particularly when comparing steel to other metals like aluminum. ABC of Nebraska will debunk myths associated with metal roofing and highlight how steel roofs can overcome these challenges.
Does Metal Roofing Rust?
One of the most frequently asked questions about metal roofs is whether they rust. The answer depends on the material.
- Aluminum is naturally corrosion-resistant, but in some cases, it can develop surface oxidation that looks like rust.
- Modern steel roofs are treated with protective coatings, making them highly rust-resistant. With proper care, a steel roof will stay rust-free for decades, even in Nebraska’s varying climate.
Is a Metal Roof Noisier?
Another common myth is that metal roofs are noisy, especially during rain or hailstorms. This perception likely stems from experiences with uninsulated metal barns or sheds.
A properly installed metal roof with underlayment and insulation is no louder than any other roofing material. In fact, some homeowners report their metal roof is quieter than asphalt shingles during storms.
Can Metal Roofing Dent?
Many homeowners worry about the potential formetal roofing to dent, particularly in areas prone to hail. Aluminum is softer than steel, so it’s more likely to dent under impact. Steel’s hardness makes it highly resistant to dents. Many steel roofs are rated to endure hail and other impacts, making them a reliable choice for Nebraska homeowners.
The metal roofing we use at ABC of Nebraksa is made from heavy-gauge, hot-dipped, G-90 galvanized steel that can withstand the strength of a Category 3 hurricane (160 mph winds). It also carries a Class 4 impact rating, which is the highest possible resistance to hail and airborne debris.
What Happens if Metal Roofing Isn’t Installed Properly
Many so-called problems with metal roofing aren’t due to the material itself but stem from poor installation. These issues highlight the importance of hiring experienced professionals to ensure your metal roof performs as intended.
Common Metal Roofing Installation Issues
Roofer Didn’t Account for Thermal Expansion and Contraction
Metal roofing naturally expands and contracts as temperatures rise and fall throughout the day. If a roofer fails to account for this movement during installation, it can lead to significant problems over time. Panels may warp, buckle, or pull away from fasteners as they expand and contract without enough room to move freely. This affects the roof’s appearance and can compromise its structural integrity, leading to leaks and reduced lifespan. Proper installation techniques are important to prevent these issues and maintain the roof’s appearance.
Improperly Installed or Missing Fasteners
Fasteners are critical to holding metal roofing panels securely in place, but they must be installed correctly to do their job. Over-tightened fasteners can damage the roofing material, creating weak spots where water could seep through, while under-tightened fasteners can allow panels to shift or come loose in high winds.
Missing fasteners altogether is an even greater concern because it leaves parts of the roof vulnerable to structural failure. Additionally, low-quality fasteners that lack protective coatings may rust. Using high-quality fasteners and ensuring they’re installed to the manufacturers’ specifications is vital to avoid these problems and ensure a reliable, long-lasting metal roof.
Top Signs of Poor Metal Roofing Installation
1. Leaks or Water Damage
- Water stains or mold in the attic or ceilings.
- Dripping water during or after a storm.
2. Loose or Misaligned Panels
- Panels not aligned properly, creating an uneven appearance.
- Gaps between panels where water or debris can enter.
3. Improper Fastening
- Fasteners that are over-tightened, causing the rubber washers to crack.
- Fasteners that are too loose, allowing movement of the panels.
- Use of the wrong type of fasteners or fasteners placed inconsistently.
4. Inadequate Flashing
- Flashing improperly installed around vents, chimneys, or skylights.
- Visible gaps or lifted flashing that can allow water intrusion.
5. Poor Sealing of Seams and Edges
- Sealants that are applied unevenly or missing.
- Seams that do not overlap correctly (we recommend going seamless to avoid this issue altogether).
6. Rust or Corrosion
- Visible rust on panels shortly after installation due to damaged or low-quality materials.
- Corrosion near fasteners, indicating improper material compatibility.
7. Excessive Noise
- Popping or creaking sounds during temperature changes, which can indicate poor installation or insufficient underlayment.
8. Improper Underlayment Installation
- Missing underlayment, which can cause condensation issues.
- Wrinkled or poorly secured underlayment, leading to moisture buildup.
9. Buckling or Warping Panels
- Panels that warp due to insufficient room for thermal expansion.
- Signs of stress in the metal, especially around fasteners.
10. Inadequate Ventilation
- Poor attic ventilation leading to condensation and damage to the roof’s underside (i.e. visible wet spots or mold growth).
11. Unprofessional Aesthetics
- Visible dents or scratches on the metal panels from improper handling.
- Uneven color or finish, indicating mismatched panels or coating damage.
If any of these signs appear, consult with a professional roofing contractor to assess and correct the issues. Early detection and repair can help avoid more extensive damage to your home.
Nebraska Metal Roofing Professionals
At ABC of Nebraska, we pride ourselves on offering high-quality steel roofing solutions tailored to your needs. From initial consultation to installation, our team ensures your roof is built to withstand Nebraska’s climate with durability, beauty, and peace of mind. Contact us today for a free quote.
