Steel and fastener back-out happens when screws or nails that hold steel roofing panels in place work themselves loose over time. This can be caused by several factors, including thermal expansion and contraction of the metal, improper fastener length or placement, or even vibrations from wind or nearby machinery. When fasteners back out, the roof’s panels can shift, leading to leaks, noise, or even damage during storms. To check for back-out yourself, start by visually inspecting the roof from the ground or a stable ladder, looking for any panels that appear misaligned or fasteners that look exposed or rusted. Lightly tap and feel fasteners you can reach safely; if they move or wiggle, that’s a sign they may be backing out. However, avoid walking directly on steel panels if you’re not experienced, as this can cause damage.
If you suspect back-out, it’s a good idea to call a professional roofer who understands steel roofing systems because improper repairs can void roofing warranties or cause more damage. When speaking with a contractor, ask specifically if they will use the correct fastener length and type recommended by the manufacturer, and whether they will check for proper torque to prevent future loosening. Also, inquire if they plan to inspect adjoining areas for hidden damage or corrosion that might have contributed to the problem. These questions ensure the repair is done right and protects your investment for the long term.