When to Inspect Your Metal Roof?
Regardless of what roofing system is in place, always check it after the end of an intense weather season. Intense weather with heavy rainfall and extreme winds can increase fastener failure in traditional metal roofing. Immediate inspection of the roof should take place after the passing of a storm.
The first thing to do when inspecting a metal roof, if safe to do so, is to walk the entire roof to check for drainage issues, moisture problems, discoloration, leaks, patch breakdown, panel corrosion, flashing problems, loose fasteners, deflected panels, and loose or damaged panels.
If you have these on your roof, inspect them thoroughly for cuts, gaps, and tears.
Metal roofs are prone to corrosion, loose panels, and bends. Seams should be checked for water tightness.
Another problem that you should be looking for is the integrity of the fasteners. Sometimes fasteners are tightened down too much, which may cause them to rust. Panel fasteners usually have sealing washers that use neoprene, which may break down over time due to expansion and contracting or exposure to ultraviolet rays. While walking the metal roof, it is good to touch the sealant to see if it is still soft and pliable, that fasteners are tight, and washers are in good shape.