Articles tagged leak. Sellers Roofing diagnoses and repairs roof leaks across Saint Paul — same-day callback, no-pressure inspection, and written warranty.
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…
A skylight flashing leak usually shows up as a roof leak in the form of staining that starts at the skylight’s edges (often the uphill side) and worsens during wind-driven rain or thaw cycles. A skylight unit leak or condensation issue tends to leave moisture on the glass, frame, or inside corners first. The fastest…
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…
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,…
Earliest roof leak signs in a finished attic usually show up as small changes, not dripping water. Watch for faint yellow or brown staining at ceiling corners, bubbling paint, a musty odor that comes and goes, or trim that starts to warp. In commercial spaces, you may also notice damp insulation behind knee walls, rust…
Short answer: The first hidden roof leak signs in drywall are usually faint yellow or brown water stains on ceilings, paint that starts to bubble, and drywall that feels soft or swells near seams or fasteners. You may also notice musty odors before you see obvious dripping. In commercial spaces, these clues often appear after…
A flat roof parapet leak usually comes from one of three places: the roof membrane’s transition to the parapet wall, the metal coping on top, or a drainage opening that cuts through the parapet (like a scupper). To find it, start by tracing interior staining to the closest wall line, then inspect parapet flashings, terminations,…
A wind-driven roof leak usually enters on the windward side during wind-driven rain, then travels before it shows up inside. Identifying the source of a roof leak is the first step in proper roof maintenance for Minnesota property owners. To find it without climbing, document the wind direction, then take eight clear ground photos of…
Flat roof leak detection is essential when there’s no drips inside, as a flat roof can leak without leaving a single ceiling stain because water intrusion often travels sideways above the deck. To locate it, start on the roof, not indoors. Inspect drains, seams, flashing, and penetrations, then narrow the search with moisture mapping (infrared…
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