In Raleigh, NC, where hailstorms are an occasional but damaging threat, commercial roofs are frequently at risk. Metal and TPO (thermoplastic polyolefin) roofing systems are often chosen for their durability—but even the toughest materials can suffer from hail impact. If your commercial building has been hit by hail, knowing what to do next is crucial. The steps you take—or fail to take—can significantly impact the lifespan of your roof and the success of any insurance claim.
Many building owners assume that metal or TPO roofs are “hail-proof,” but no roofing system is completely immune. Dents, punctures, membrane tears, and seam separation are all common after severe hailstorms. Identifying and addressing this damage early helps avoid more costly problems down the road.
How Hail Affects Metal Roofs
Metal roofs are known for their longevity and wind resistance, but hail can leave noticeable dents and impact marks. While cosmetic damage may not affect waterproofing, larger hailstones can compromise fasteners or deform panels enough to cause long-term issues.
More concerning is unseen damage. Repeated hail impact may fatigue the metal, creating micro-fractures that grow over time. Flashing components and exposed fasteners are also vulnerable and can become loose or warped.
How Hail Damages TPO Roofs
TPO is a flexible, single-ply roofing membrane widely used on flat or low-slope commercial buildings. Hail can puncture the membrane or weaken it around seams and flashing. Because TPO membranes rely on a watertight seal to perform effectively, even small tears can allow moisture to seep underneath.
This hidden infiltration may not present immediate leaks, but it can saturate insulation and damage the underlying roof deck, leading to mold, rot, and significant structural problems if left unchecked.
What to Do After a Hailstorm
The most important first step after a hailstorm is to schedule a professional roof inspection. Even if you don’t notice leaks or visible damage, a trained eye can detect subtle signs that something is wrong.
Working with an expert like Rhino Roofing ensures a thorough evaluation of your metal or TPO roofing system. Serving the Raleigh, NC area, Rhino Roofing provides post-storm inspections, detailed reports, and repair plans tailored to your roof type and extent of damage.
Insurance and Documentation
If hail damage is found, proper documentation is critical. Take high-quality photos of any visible impact areas, and request a written report from your roofing contractor. Insurance companies require proof not only of the damage itself but also of the date and severity of the storm.
Your roofing contractor can assist in this process, often meeting with your insurance adjuster to provide expert insight. Timely and accurate filing increases the likelihood of a successful claim and reduces your out-of-pocket expenses.
High-Performance Repairs and Materials
Rhino Roofing only uses materials from industry leaders like CertainTeed, GAF, and Owens Corning to ensure your repair or replacement is built to withstand future storms. For metal roofs, this may involve replacing panels or fasteners with upgraded wind- and hail-rated components. For TPO systems, patches must be heat-welded to restore full membrane integrity.
Choosing a qualified contractor and trusted materials isn’t just about fixing the current issue—it’s an investment in long-term protection.
Preventative Maintenance for the Future
Once repairs are complete, consider implementing a preventative maintenance program. Regular inspections and maintenance can identify emerging problems early and prolong the life of your roofing system. Periodic sealing, flashing checks, and drainage improvements go a long way in fortifying your roof against future hail events.
Read also our blog: A Guide to Navigating Roof Storm Damage Insurance Claims.
