![]() ![]() Failed seam – The seam, or side rib where two panels are connected, could be formed incorrectly or seamed improperly by the installer.Failed fasteners – The screws are either too tight, too loose, or off-center and allows water to enter at open spots.Unfortunately, there are also some situations where a leak could be due to installer error: Ice damming (consistent freezing and thawing).Metal roof leaks are a possibility some of which are unfortunately out of our control and some of which are due to human error.Ĭommon uncontrollable triggering events or causes that could lead to a leaking roof are: In addition to having to pay extra for the roof to be fixed in most cases, a leak can also ruin other valuable items in your home or building. Let’s be honest: No one wants a leaky roof. Most importantly: Choose a skilled and experienced installer who is knowledgeable about the ways to avoid oil canning.Install the roof over a flat “in-place” roof deck.Buying tension-leveled (stretched) metal, as this coil is already stretched beyond the point where it cannot return to its original state.Choosing a low-gloss or matte finish to reduce reflectivity, which can decrease the visibility of oil canning.Using a rib roller profile to break up the amount of flat space on a panel.Luckily there are ways to reduce the likelihood of oil canning, some of which include: Contractors should always follow industry-standard manufacturer installation details.For example, if a panel is not installed according to the specified dimensions of the structure, it could generate oil canning. ![]() ![]() Improper usage, handling, and storage by installers.Changes to the structure’s original form that puts tension on or moves the panels.Inadequate space allotted for thermal expanding and contracting of the panels.Frequent stress from coil slitting (cutting) and rollforming panels.Over-production-such as extreme pressure during the coiling of the metal.There are a number of reasons that oil canning can occur, including: Oil canning is easily one of the hottest topics in metal roofing because it can be difficult to define and measure. To be clear, oil canning is an inherent characteristic of nearly all metal roofs/walls. Think of oil canning as the metal on a standing seam metal system being over-stressed and unable to hold a flat form, which causes the metal to give in and create visible waves. It can occur in any type of metal panel: steel, aluminum, zinc, or copper.” In technical terms, oil canning is referred to as elastic buckling (more commonly known as “stress wrinkling”). “Visible waviness in the flat areas of metal roofing and metal wall panels. Top 7 Most Common Metal Roofing Problems #1: Oil CanningĪccording to the Metal Construction Association, oil canning is defined as: Important considerations to keep in mind to that’ll help bypass some problems.Potential ways and methods to remedy or avoid the problem.The top seven common problems that could occur with a metal roof.Here at Sheffield Metals, we think it’s important to educate consumers about the potential common problems with a metal roof that could very easily happen or not happen. This might not be the answer you’re looking for, but just know that there tend to be fewer long-term problems associated with metal roofing than asphalt shingles or concrete tiles. While there are variables affecting the problems that could occur with a metal roofing system, sometimes things just happen that are beyond human control. You could be in a lucky situation where nothing ever goes wrong with something you’ve purchased or you could experience one or more problems at any given time. No product in the world is perfect, no matter how much money it’s worth or how well it’s cared for. ![]()
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