Leak Repair Handles
- A stain with no obvious match on the roof
- Drips that show up only after snowmelt
- Water running down an inside wall under a parapet
- Leaks that move between storms
- Wet ceiling tile under a rooftop unit
Repair Sheet ยท Leaks
Columbus Commercial Roof Leak Repair Contractor
Where Is the Water Getting In, and What Will Close It?
As a Columbus commercial roof leak repair contractor, we follow each drip from the ceiling up to the parapet, curb, lap, or drain letting water in.
- Starts At
- The drip inside the building
- Ends At
- The opening on the roof
- Traced from the drip up
- Parapet caps checked first
- Snowmelt leaks tracked by timing
- Source photographed before repair
Leak Or Larger Problem?
What Columbus Commercial Roof Leak Repair Covers
Columbus commercial roof leak repair starts where you first see water. These lists show what tracing finds and when a leak points to a bigger roof problem.
Signs of a Bigger Problem
- Stains appearing across many bays at once
- Wet insulation found in most cores
- Deck flutes rusted through near the leak
- Leaks returning after every repair
- Water coming through the wall below the roof line
Leak Patterns
Commercial Roof Leak Repair Clues in Columbus Buildings
How and when a leak shows up says a lot about where it starts. Six patterns we read first.
Drip Days After Snow
- You See
- Water on the floor two or three days after a snowfall.
- What It Means
- Meltwater backed up behind frozen drains and found a lap that opened in the cold.
Wet Wall Under a Parapet
- You See
- A damp stripe running down an inside wall.
- What It Means
- Water is getting in through the cap, mortar joints, or counterflashing above the roof.
Leak at the Eave Line
- You See
- Drips along an outside wall in midwinter.
- What It Means
- An ice dam at the gutter or scupper is pushing meltwater under the laps.
Leak Only in Heavy Rain
- You See
- Dry in drizzle, dripping in a cloudburst.
- What It Means
- Water is rising above flashing or overflowing a clogged drain at peak flow.
Ceiling Tile Under a Unit
- You See
- Stained tiles directly below a rooftop unit.
- What It Means
- The curb flashing, unit gasket, or counterflashing has failed or been stepped on.
A Leak That Moves
- You See
- Drips in a new spot after each storm.
- What It Means
- Water travels along the deck from one opening, so tracing starts upslope of every mark.
Failure And Fix
Commercial Roof Leak Repair for Columbus Offices and Plants
Each pair names where a leak starts and what the repair changes at that detail.
- What Fails
Parapet Caps and Joints
Gaps at the wall cap and cracked mortar let water into the wall, where it runs down and appears at the roof line.
What The Repair DoesWe seal the cap joints and counterflashing first, then repair the base flashing where the wall meets the roof.
- What Fails
Eaves Under an Ice Dam
Meltwater hits a cold eave, refreezes, and backs up under laps and trim on metal buildings.
What The Repair DoesEave laps and edge flashing get resealed, scuppers get opened, and the report notes any heat loss feeding the dam.
- What Fails
Unit Curb Flashing
Flashing pulls away from curbs, gaskets fail, and technicians crack the sheet while servicing units.
What The Repair DoesThe curb is reflashed, the unit resealed, and walkway pads go down on the service path.
- What Fails
Flashing Set Too Low
In a downpour, water rises past flashing set too low at walls or curbs and runs behind it.
What The Repair DoesFlashing gets raised above the high-water line, and the drain that let the water rise is cleared.
Seeing Water Days After the Snow?
Write down the date of the snowfall and the first drip. That timing helps us find the opening fast once we are on the roof.
How The Work Runs
Commercial Roof Leak Repair Steps for Columbus Facilities
Tracing happens before any patch. These five rows run in the same order on every leak.
Leak Trace Work OrderColumbus, Indiana
- At The Building
Mark Every Drip
We tag each drip and stain inside with tape and a number, and note the date and weather when it first appeared.
- At The Building
Read the Deck Above
From a lift, we look for rusted flutes, wet insulation edges, and water trails that point upslope toward the opening.
- On The Roof
Walk Upslope to the Source
On the roof, each tag is matched to the laps, curbs, drains, and parapets upslope of it until the opening turns up.
- On The Roof
Test the Suspect Detail
Where the source is unclear, a controlled water test on one detail at a time confirms it before the repair.
- On The Roof
Repair and Recheck
The opening is closed in matching material, wet insulation around it is replaced, and the finished detail is photographed.
Related Repairs
Repairs That Follow a Traced Leak
Once the opening is found, the fix uses one of these services, depending on the roof.
Flat Roof Repair
You Notice Leaves packed in a drain and a dark ring around it.
Drains, blisters, and open laps rebuilt in matching membrane.
Typical Repairs- Drain flashing and clamping ring reset
- Blisters opened, dried, and patched
- Wet insulation replaced in kind
Commercial Metal Roof Repair
You Notice Rust bleeding from the end laps near the eave.
Loose screws, open laps, and rusted panels replaced to match.
Typical Repairs- Screws and sealing washers replaced
- Rusted panels swapped to a matching profile
- Ridge and wall trim resealed
Industrial Roof Repair
You Notice Cracked flashing at a fan curb above a production bay.
Fan curbs, stacks, and worn paths repaired around production.
Typical Repairs- Fan and stack curbs re-flashed
- Drain clamps reset with new bolts
- Walkway pads on service paths
Questions
Leak Repair Questions From Columbus Facility Managers
Snowmelt, parapets, ice dams, downpours, and unit curbs.
Why Is My Roof Leaking After Snow Melt?
Snow is a slow water source. Daytime sun melts it, and the water runs under the snow toward drains that are still frozen, so it sits against curbs and walls for days. Seams that opened in the cold let it in, which is why the drip shows up late.
What Causes a Roof Leak at a Parapet Wall?
Most parapet leaks begin above the roof surface. Water enters through gaps in the wall cap, cracked mortar in brick parapets, or dried sealant behind counterflashing, then runs down inside the wall. We repair that entry point first and the base flashing second.
How Are Ice Dam Leaks on Commercial Roofs Stopped?
Ice dams form at gutters, low metal eaves, and flat roof scuppers, where meltwater meets a cold edge and refreezes. Trapped water then seeps under laps and trim. Resealing eave laps and edge flashing and opening frozen scuppers stops the leak; cutting heat loss at the edge stops the cycle.
Is It Normal for a Roof to Leak in Heavy Rain?
No. A roof in good shape stays dry in heavy rain. Leaks that appear only in downpours usually come from clogged drains, water rising above flashing, open laps in ponding areas, or overflowing gutters, and each of those is repairable once found.
Why Do Rooftop Unit Curbs Leak?
Curb leaks start when membrane flashing pulls away, the counterflashing or unit gasket fails, or water ponds around a curb set too low. Technicians also crack flashing while servicing units. Reflashing the curb, resealing the unit, and adding walkway pads fixes it.
Hire a Columbus Commercial Roof Leak Repair Contractor
Tell us where the water lands and when it started. We will trace it to the opening and send a written repair scope.