Articles tagged flat roof. Sellers Roofing installs and repairs commercial flat roof systems (TPO, EPDM, modified bitumen) across Saint Paul, MN — GAF certified, union crews (Local 96 Roofers).
A TPO roof leak at HVAC curb corners is found by narrowing the leak path from the interior, then inspecting every curb corner detail on the TPO membrane: welds, flashing, termination, fasteners, and sealant transitions. Finally, confirm the exact breach with controlled water testing or professional methods like infrared or electronic leak detection, because water…
Water stains on ceilings help you narrow the search, but they rarely mark the exact roof leak. Start by confirming the stain is active, then check what sits directly above it (roof deck, drains, HVAC curbs, or plumbing). Next, trace the most likely uphill water path on the roof to find the leaky roof, focusing…
For Twin Cities commercial roofs, TPO vs. EPDM comes down to what you need the roof to do most. EPDM roofing often wins for cold-weather flexibility, proven longevity, durability, and budget-friendly installs. TPO often wins for heat-welded seams, puncture resistance, and lower summer cooling load. The “better” choice is the one that matches your roof…
PVC roof leak detection works by narrowing the problem from “moisture intrusion inside” to the exact point where the PVC waterproofing membrane or flashing lets water in. Pros use Electronic Leak Detection, combining surface inspection, seam and flashing checks, moisture scanning (often infrared), and electronic membrane testing to trace the leak’s path, pinpoint membrane breaches,…
Most flat roof leak detection appointments on commercial and industrial roofs take 2 to 6 hours onsite. Simple, visible water intrusion leaks can be traced in 1 to 2 hours, while larger roofs or tricky leaks often need a half day. If the team uses thermal imaging cameras, electronic testing, or moisture mapping, plan on…
Start with a controlled interior-to-roof check: map the wet area inside, match it to the drain line path, then inspect the drain bowl, clamping ring, and membrane at the flange for gaps, cracks, or loose hardware. If the source still isn’t clear, run a low-pressure water test around the drain and document results for targeted…
Use a ceiling moisture meter to turn a vague stain into a clear wet-to-dry boundary. Start by finding a dry “baseline” area, then take readings in a grid around the stain. Mark where readings rise above baseline and trace that outline on a sketch or reflected-ceiling plan. The shape and direction of that wet zone…
Commercial EPDM seam leak detection works by combining close seam inspection with moisture mapping tools that can “see” where water traveled under the membrane. Pros look for edge lift, tiny voids in seam tape, fishmouths, and punctures near lap lines, then confirm the source using infrared scans, electronic leak detection, or smoke testing. The goal…
A capacitance meter finds wet insulation by sensing changes in an electrical field across the roof assembly. Because water stores electrical charge differently than dry insulation, wet areas create higher capacitance readings. During capacitance roof testing, a technician scans the roof in a grid, compares readings to a dry baseline, then maps “hot spots.” Final…
Ponding water on a flat roof is rain or snowmelt, often referred to as “standing water”, that sits in low spots instead of draining away. In Minnesota, it becomes a real problem when it stays longer than 48 hours, keeps coming back after normal storms, or pools near seams, drains, and penetrations. A simple ruler…
Commercial TPO leak detection works by combining surface inspection with moisture-mapping tools that “see” what your eyes can’t. Pros look for seam and flashing failures, then use infrared thermography to locate wet insulation patterns and electronic leak detection to pinpoint the exact hole in the membrane. The goal is simple: find the true entry point,…
TPO hail splatter marks are subtle dark speckles left on thermoplastic polyolefin roofs after a hailstorm. Unlike dirt or foot‑traffic scuffs, these peppery gray or black dots don’t wash away easily. Knowing how to recognize TPO hail splatter marks helps property owners decide if their roof has been compromised and whether to bring in a…
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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.