If Your Roof
Leaks Only During Wind-Driven Rain From One Side
That pattern points to wall flashing, coping joints, or side laps facing the storm.
Start WithFlashing And Coping
Lexington Commercial Roof Leak Repair Contractor
Find Out Which Seam, Curb, or Drain Is Letting Water In
Call a Lexington commercial roof leak repair contractor when the drip is easy to find and the source is hidden. We trace water uphill and fix where it enters.
- Infrared And Hose Tests
- Drip Mapped Inside
- Dry-Day Permanent Fix
Start PointThe drip inside
TracingHose tests and infrared
Common SourcesCurbs, boots, pitch pans
Wet WeatherTemporary seal first
Does This Leak Need Only a Spot Repair?
Most leaks come from one failed detail. A Lexington commercial roof leak repair contractor confirms that before treating it as one.
If Your Roof
Drips Below a Rooftop Unit
Curb flashing, pitch pans, and condensate lines get checked, and the HVAC contractor looks inside the cabinet.
Start WithCurb Repair
If Your Roof
Leaks Only in Downpours
Overflowing drains, scuppers, or gutters are the usual cause, so clearing them comes before any patch.
Start WithDrain Clearing
If Your Roof
Leaks in Several New Places Every Season
A moisture survey maps wet insulation, since spreading leaks point to a roof that needs more than spot work.
Start WithMoisture Survey
Where the Water Shows Up and Where It Starts
Water travels before it falls, so the drip and the source can sit several feet apart.
Drip Mid-Room
Inside The Building
A single drip lands in open floor space far from any wall.
On The Roof
Water runs along the steel deck flutes from a seam or penetration in line with the drip.
Stain Beside a Unit
Inside The Building
Tiles darken next to a duct drop after the cooling runs.
On The Roof
A cracked pitch pan, an open curb corner, or a condensate line dripping onto the roof.
Water Inside an Outer Wall
Inside The Building
Damp drywall or white mineral streaks appear high on an exterior wall.
On The Roof
Coping joints let rain into the parapet, which sends it down inside the wall.
Leak Only in Heavy Storms
Inside The Building
Water appears in downpours and stays dry the rest of the time.
On The Roof
Drains or gutters overflow, pushing water over flashing that handles normal rain.
Commercial Roof Leak Repair Options for Lexington
The fix depends on where the water entered and on whether the roof is dry yet.
Tracing a Roof Leak Far From the Drip
The drip gets marked inside and measured to a roof landmark such as a curb or drain. Flood or hose tests then run one area at a time, starting low and moving up.
Pitch Pan and Curb Leak Repair
Curb flashing gets replaced and tucked under new counterflashing. Pitch pans are emptied and refilled, or swapped for a pipe boot, and cracked boots get replaced at the clamp.
Fixing a Roof Leak in the Rain
During a storm the job is temporary: cleared drains, repair tape or a tarp over the opening, and water steered away. The permanent repair waits for a dry surface.
Common Leak Sources by Roof Type
TPO leaks at seam edges and curb corners, EPDM at seam tape edges and wall flashing, built-up at blisters and parapet bases, and R-panel metal at fasteners and end laps.
One Repair Instead of Three
Patching the spot above the drip misses leaks that travel along the deck. Tracing first puts the repair where water actually enters, so the same stain stays gone after the next storm.
- Fewer return visits
- Insulation dried out once
- Interior damage kept small
Benefits of Repairing Your Roof
Finding the real entry point means the repair stays fixed.
Proof for Your Records
Photos of the source and the finished repair go into your file, which helps when an adjuster asks after a storm.
HVAC Calls Sorted Out
Leaks that turn out to start inside a unit cabinet get handed to the HVAC contractor quickly.
A Leak Map Over Time
Each traced leak is marked on a roof plan, so repeat trouble at one curb or drain stands out.
Bucket Under the Same Ceiling Tile Again?
A leak that keeps returning to one spot was patched in the wrong place or with the wrong material. Get a visit that traces it back first.
Get A Free EstimateHow a Lexington Commercial Roof Leak Repair Contractor Traces Water
Tracing runs from the inside out, then from low on the roof to high.
- MARK
Inspect Your Roof
We start at the drip, mark it on your floor plan with the date and weather, and measure it to a curb, drain, or wall above.
- SCAN
Scan and Probe
An infrared scan shows wet insulation under the membrane, and probing checks seams and flashing near the measured spot.
- TEST
Hose Test Uphill
Water goes on one small area at a time, starting low and moving up, until someone inside sees the drip return.
- SEAL
Seal Now or Repair Later
A wet roof gets a marked temporary seal. On a dry day the permanent repair goes on and the temporary material comes off.
- LOG
Log the Source
Photos of the entry point and the repair go to you, with the spot added to your roof plan.
Repairs That Come After the Source Is Found
Once the source is found, the fix belongs to one of these.
Flat Roof Repair
Leaks traced to a lifted seam or split base flashing end with a welded or taped membrane repair.
Typical Repairs
- Cover strips on open laps
- Base flashing re-adhered
- Soaked boards replaced first
Commercial Metal Roof Repair
Drips traced to screws, end laps, or ridge caps on a metal building end with fastener and lap work.
Typical Repairs
- Oversized screws along the run
- Laps sealed and taped
- Foam closures under ridge caps
Industrial Roof Repair
Plant leaks over production lines get repairs timed with maintenance staff and covered work areas.
Typical Repairs
- Production lines covered under work
- Lockout of nearby exhaust fans
- Moisture survey where leaks repeat
Commercial Roof Leak Repair Questions From Lexington Buildings
Answers on tracing, sources, and what to do inside while you wait.
How Is a Leak Traced When the Drip Is Far From the Source?
Work uphill from the drip along the deck, purlins, or insulation joints, since water often travels several feet before it falls. Mark the drip, measure to a curb or drain, run flood or hose tests one area at a time, and probe nearby seams.
On steel decks the source often sits in line with the drip along the flutes. On metal buildings water runs along purlins toward the eave.
Where Do Leaks Start on Each Type of Commercial Roof?
Each roof has its usual suspects. TPO and PVC leak at seam edges, curb corners, pipe boots, and edge metal, EPDM at seam tape edges and wall flashing, and built-up or modified bitumen at blisters, cracked flashing, parapet bases, and drains.
R-panel metal leaks at fasteners, end laps, ridge caps, and skylight laps. Rooftop units show up on every list.
What Should Be Done Inside the Building While a Leak Waits for Repair?
Move stored goods and equipment away, catch the water, and photograph the damage. Put a bucket or tarp funnel under the drip, shut off power to lights or equipment near wet areas, and pull soaked ceiling tiles before they fall.
Mark the spot on a floor plan with the date and weather. Notes on light rain, heavy rain, or wind from one direction help narrow the source.
How Are Leaks at Rooftop Units, Curbs, and Pitch Pans Repaired?
Curbs get reflashed with new membrane and finished under new counterflashing, and condensate lines that drip onto the roof get rerouted. Pitch pans are emptied, refilled with fresh sealer, and capped, or replaced with a pipe boot.
Pitch pans shrink away from pipes, so check them every season. Water inside a unit cabinet can pass for a roof leak, which is why the HVAC contractor checks drain pans.
Can a Roof Leak Be Fixed While It Is Raining?
Only temporarily. Membranes, primers, and sealants bond poorly to wet surfaces, so storm work means clearing clogged drains and scuppers, covering open seams with repair tape or a tarp, and steering water away from the active leak.
Once the roof dries, the temporary material comes off and the permanent repair goes on. Walking a wet roof is dangerous, so safety decides what happens during a storm.
Reach a Lexington Commercial Roof Leak Repair Contractor
Send the drip location and when it leaks. We handle commercial roof leak repair in Lexington, KY, from tracing to the final photo.