Electric field vector mapping (EFVM), a form of electronic leak detection, finds flat roof leaks by sending a low-voltage pulse through the waterproofing membrane and measuring how that electrical field moves across a damp surface. Water in the roof assembly acts like a pathway, so the “direction” of the signal points back to the breach….
In the first hour after a hailstorm, focus on safety, fast documentation of hail damage and storm damage, and stopping interior damage. Stay off the roof, do quick indoor checks for leaks, and photograph hail, exterior impacts, and any interior water. Then start a paper trail (time, weather, notes) and call a local commercial roofer…
If you’re asking, “what are the different types of commercial roofing” and which one fits your building, this guide helps you compare the options. Choosing the wrong system can cost tens of thousands over a roof’s service life and lead to years of avoidable maintenance. Use this quick reference to compare materials, typical cost ranges…
A good roof must work like a complete system, not just a top layer, providing essential weather resistance and long-term durability. The core roof functional requirements are to shed water, resist wind, control heat loss and condensation, handle building movement, comply with building codes, and stay serviceable through inspections and repairs. When any one part…
TPO roof leak detection starts by tracing water inside the building, then checking the TPO membrane’s most common failure points, seams, penetrations, drains, edge metal, and rooftop equipment curbs. Because water can travel far on low-slope roofs, the interior drip spot often isn’t the roof entry point. Confirm the breach with targeted testing (not guesswork),…
The first attic roof leak signs usually show up as water stains on roof decking, damp attic insulation, rusty nail heads, musty odors, or frost that later turns into wet spots. You may also see mold specks on wood or feel unusually humid air in the attic, especially after rain, snowmelt, or wind-driven storms. A…
Infrared roof leak detection and thermal imaging, a non-invasive technology, finds moisture damage in flat roofs by spotting temperature difference that often signals trapped moisture under the roof membrane. Wet insulation holds heat longer than dry areas, so it shows up as warmer (or sometimes cooler) “blotches” on a thermal image. A trained technician maps…
Spotting issues on asphalt shingles from a distance involves looking for granule loss and random bruising. Hail damage architectural shingles can often be spotted from the ground by using binoculars or a phone zoom and looking for random dark “bruise” spots, scuffed areas, and patches where granules look thin or washed out. Also check nearby…
Many property managers, building owners, and homeowners ask “what are the disadvantages of EPDM roofing” after finding a leak, pulled flashing, or repeated rooftop repairs. This guide lists the top five drawbacks that show up in field reports and warranty claims, from seam failures to ongoing maintenance needs. Each issue includes common causes and practical…
Roof hail damage usually shows up as dents, punctures, loosened seams, or crushed roof components that later turn into leaks. Following severe thunderstorms, inspect the roof surface, flashings, drains, and rooftop units, then document everything with photos and dates. If you see splits, exposed substrate, or new water intrusion, schedule a professional roof inspection quickly;…
Electronic leak detection finds holes in a roofing membrane by using a controlled electrical field. When there’s a membrane breach, electricity follows the path of least resistance, often through moisture, to the conductive deck or a grounded return line. The technician tracks that signal and marks the exact leak location, so repairs target the true…
After harsh Minnesota winters that batter roofing materials with heavy snow and ice, focus your spring roof inspection on vulnerable spots like drains and scuppers, seams and flashing, roof edges, and rooftop penetrations (HVAC curbs, vents, skylights). Once the snow melts, check for ponding water, split sealant, loose coping, punctures from snow removal, and new…
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Sellers Roofing Company is your premier Saint Paul destination for expert commercial and residential roofing services, offering comprehensive solutions from storm damage restoration and repairs to new asphalt shingle installations, all with meticulous craftsmanship and an eye for enhancing your property’s safety and aesthetic.