Articles tagged water stains. Insights and tips from Sellers Roofing — Saint Paul’s union-built, GAF-certified roofing contractor. Family-owned since 2017.
To detect a commercial roof scupper leak, trace water from the inside out, then confirm the source at the roof edge. Start by mapping interior stains, inspect the scupper opening and roof flashing, and check the roof membrane upslope where water feeds the scupper. Finish with a controlled water test or professional moisture testing to…
A hidden roof leak in walls usually shows up as subtle changes before you ever see water damage. Watch for water stains near the ceiling line, bubbling or peeling paint, soft drywall, a musty smell, or damp insulation behind the wall. In commercial buildings, leaks often travel far from the roof entry point, so the…
A TPO wall flashing leak, a common roof leak on a flat roof, is usually found by tracing water from the interior stain back to the nearest wall, then inspecting the roof to wall flashing where the TPO membrane turns up the wall. Focus on terminations (termination bars, counterflashing, reglets), corner patches, fasteners, and sealant…
Short answer: Detect an HVAC curb flashing leak by inspecting the curb’s corners, seams, and termination points, then confirming moisture paths with interior checks. Look for cracked roofing sealant, open welds, lifted membrane, rusted fasteners, and ponding that pushes water against the curb. If signs are mixed, use targeted moisture mapping or a controlled water…
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…
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…
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,…
The first roof leak signs in ceiling drywall are usually water stains, peeling paint, and drywall that feels soft or spongy. In commercial buildings, you might also notice musty odors, new hairline cracks, or a slight sag in a ceiling area. These early clues often appear before any active dripping starts. When This Applies This…
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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.