Exposed fastener metal roof panels are a common type of metal roofing where screws with visible heads hold the panels in place. Over time, these fasteners can loosen, rust, or their rubber washers can deteriorate, causing leaks or reducing the roof’s effectiveness at keeping water out. This usually happens because of weather exposure or thermal expansion and contraction of the metal. A simple diagnostic step you can take is to carefully inspect your roof from a ladder or with binoculars, looking for rust-colored streaks, loose or missing screws, or cracks in the washer seals. Make sure the roof is dry and it’s safe to climb or look around so you don’t risk injury. If you notice any loose or rusty fasteners, these are usually easy and affordable to replace on your own, provided you have the right size screws and washers, and you keep track of the warranty guidelines so you don’t void coverage.
If the issue seems extensive, such as many fasteners failing or leaks already present, it’s best to call a roofing professional who is experienced with metal roofs. Repairs can vary in cost depending on the roof size and how many screws need replacement, but generally, rates range from $300 to $800 for a typical residential repair. When speaking to a contractor, ask whether they will use high-quality, coated fasteners with neoprene washers that match your existing roof system, as inferior materials can lead to problems in a few years. Also, check if their work is covered by a warranty and whether they can inspect for underlying panel damage during repair, since hidden issues might require a more thorough approach to keep your roof secure long term.