Perimeter first, binoculars before ladders.
Normal over 15–20 years, not a defect.
Cheap foam stops sealing. Replaceable.
The most common single leak source.
Steel underneath is unaffected.
Screws, closures, boots — no minimum order.
Walk the perimeter with binoculars before climbing anything. Look for backed-out screws — they show as raised heads or dark rings. Check the ridge line for compressed or missing foam closures. Look at pipe boots, which perish faster than anything else on the roof. Check that valleys and gutters are clear, because trapped debris holds moisture against the coating. Only then consider getting up there, and only on a dry day with proper footwear.
Panels expand and contract daily; over fifteen to twenty years a proportion of fasteners work loose. This is expected on any exposed-fastener roof. The fix is straightforward — re-torque what is loose and replace anything with a perished washer, ideally with a slightly larger diameter screw so it bites fresh material. Left alone, each loose screw is a hole in your roof waiting for a hard rain.
Chalking and mild fading of the coating are cosmetic — the steel underneath is unaffected. Minor oil-canning, the slight waviness in flat panel areas, is a visual characteristic rather than a fault. What genuinely matters: rust at cut edges or fastener holes, compressed closures at the ridge, perished pipe boots, and any panel that has lifted at a lap. Those four are worth acting on.
If more than a modest proportion of fasteners are failing and the coating has broken down at multiple points, you are maintaining a roof at the end of its service life. At that stage, re-roofing over the existing panels is often cheaper than continuing to chase leaks. We will tell you honestly which situation you are in rather than selling you a full roof you do not need yet.
Once a year is sensible, plus after any severe storm. Most of it can be done from the ground with binoculars — look for raised screw heads, gaps at the ridge, and perished pipe boots before deciding whether to climb.
Thermal cycling. Panels expand and contract daily, and over fifteen to twenty years a proportion of fasteners work loose. It is expected on exposed-fastener roofs. Re-torque what is loose and replace any with perished washers, ideally with slightly larger screws.
Not the panels. What needs attention over time is sealant at penetrations, pipe boots, and foam closures at ridge and eave. Those are consumable components; the steel generally is not.
Most leaks trace to fasteners, closures or pipe boots rather than the panels, and all three are straightforward to replace. We supply the parts with no minimum order. Call (252) 375-3651 and describe where the water is showing — that usually identifies which of the three it is.
When a substantial share of fasteners are failing and the coating has broken down at multiple points, you are maintaining a roof at the end of its life. At that stage re-roofing over the existing panels is often cheaper than chasing leaks indefinitely.
Tell us the size, your county and what you are storing. We quote from current steel pricing — no obligation, and we will tell you if a different size suits you better.
