![]() ![]() ![]() Oil canning – This is generally considered the perceived waviness in the flat areas of metal panels.Deflection – Crimped or bent panels can lead to ponding water on your metal roof, which can be a direct cause of leaks and rust.Monitoring for rust should be done at least as often as during semi-annual inspections and a rust inhibitor, which forms a surface on panels, should be applied on any rust to stop it from forming in the future. Most metal roofing is made of galvanized metal or is coated to prevent rust from occurring, but ponding water or heat from direct sunlight can both wear the roof’s protection away over time. When rusting occurs, the oxides expand and occupy more space than the original material. Rust is a reddish or yellowish-brown flaky coating that is formed on iron or steel by oxidation, especially in the presence of moisture. Surface Rust – Surface rust can become a major problem if left untreated.The 7 most common metal roof anomalies include: Being disciplined with inspections can result in early detection of the most common types of metal roof anomalies that lead to those pesky roof leaks. While you might periodically take a look at your roof, it’s recommended to have a well-trained, experienced roofing technician perform a thorough inspection of your metal roof at least twice per year. A major difference between a metal roof and a traditional flat, built-up, modified or single-ply roof is that metal roofs are designed for water flow, meaning there should never be any ponding or standing water on the roof for any period of time. Water, the silent enemy of metal roofsĪlthough metal roofs wear extremely well, they have unique characteristics that, left unaddressed, can spread, worsen and lead to major damage. Ignoring what you might think is minor roof damage – or worse yet, undetected damage – can lead to major water intrusion issues down the road to not only to the roof itself, but also to the building’s insulation and structural components, as well as inventory, equipment and furnishings. ![]() Your metal roof might be out of sight on a daily basis for you, but don’t let it be out of mind. ![]()
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