Wind uplift occurs when strong winds create a pressure difference between the roof's surface and the underside, effectively trying to lift the roofing materials off the structure. Steel roofs, while durable and often better at withstanding wind than other materials, can still be vulnerable if not properly fastened or sealed. Causes of wind uplift problems include improper nailing or screws, missing or damaged sealants, and panels that aren’t adequately overlapped or engaged with the framing. Over time, even well-installed steel roofs can develop weak points if fasteners loosen or the metal shifts slightly. Simple diagnostics involve visually inspecting the roof after a storm for lifted seams, loose or missing fasteners, and any gaps where wind could get underneath. Safely climb a ladder to check the roof's edges and look for signs of damage on the panels or flashing. Inside the attic, check for daylight shining through or debris from the roof’s underside, as this can indicate wind-driven damage.
If you spot any lifted panels or loose fasteners, it's best to schedule a professional roofing contractor inspection promptly, especially if your roof is under warranty. Roofers have the specialized tools and knowledge to re-secure panels with the correct fasteners and sealants designed for steel roofs, ensuring the repairs will hold up against future winds. When consulting a contractor, ask specifically, “What fastening method will you use to prevent future wind uplift?” and “How will this repair affect my roof’s warranty status?” These questions ensure the job is done right and your roof remains protected under any warranty agreements. Avoid trying to fix major wind damage yourself, as working on a steel roof requires careful handling to avoid creating new weak points or voiding the warranty.