Common Issues with Metal Roofs and How to Address Them

Metal roofs are popular due to their sleek, modern appearance, superior durability, and energy efficiency. While they are among the most long-lasting and reliable roofing systems available, like any roofing material, metal roofs are not immune to potential issues. The good news is that these problems are often easily addressed with a professional approach.

Oil Canning

This refers to the visible waviness or buckling on flat metal panels. While oil canning doesn’t typically affect the roof's performance, it can detract from its aesthetic appeal. Factors like improper installation, uneven substrate, or thermal expansion can contribute to oil canning.

To address oil canning, approach professionals with experience in metal roofing to install your roof. Choosing thicker metal panels and using tensioned sheets can help minimize the risk. Additionally, selecting textured finishes over flat panels can reduce the visibility of any minor waviness.

Rust and Corrosion

Metal roofs are resistant to rust and corrosion, but these issues can still arise under certain conditions. When your roof is prone to saltwater environments or acidic rain, or when its protective coating sustains damage, rust develops over time. Rust not only compromises the appearance of your roof but can also weaken its structural integrity.

To prevent rust and corrosion, inspect your metal roof regularly and promptly address any scratches or damage to the protective coating. If you notice signs of rust, clean the affected area and apply a rust-resistant sealant. Additionally, consider using a fresh protective coating every few years for long-term durability.

Expansion and Contraction

Metal roofs naturally expand and contract due to temperature changes, especially in areas that experience significant weather fluctuations. This constant movement can cause fasteners to loosen, seams to separate, or panels to warp over time, compromising the roof’s integrity and appearance.

To address expansion and contraction, make sure your metal roof includes proper expansion joints during installation. These joints allow the roof to expand and contract without causing damage. It is also important to regularly check fasteners and seams for any signs of movement or wear. If you notice loose fasteners or shifted panels, tighten or replace them as needed to maintain the roof’s stability.

Scratches and Scuffs

Despite their durability, metal roofs can still be prone to scratches and scuffs, particularly during installation or from debris during storms. If left unaddressed, these minor damages can compromise the roof’s protective coating and lead to further issues such as rust.

To handle scratches and scuffs, keep an eye out for any surface damage during routine inspections. You can easily touch up most scratches with matching paint or a specialized sealant. In severe cases, you may have to replace panels to ensure that the roof continues to perform optimally. Preventing damage in the first place by trimming overhanging branches and clearing debris from the roof can help reduce the likelihood of scuffing.

Noise Issues

While the noise may not affect the roof's performance, it can be irritating if you prefer a quieter environment.

Add insulation or underlayment materials beneath the metal roofing panels to address noise concerns. These materials act as sound barriers, helping to reduce the noise caused by rain or hail. Opting for thicker metal panels during installation can also help mitigate noise issues by providing more mass to absorb sound.

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At Roof Squad, we specialize in high-quality metal roof installation and inspection. We’re here to help you keep your roof performing its best. Contact us today to schedule a consultation and learn more about how we can help with your roofing needs.