Flat roofs here spend the winter under wet snow and the summer baking at altitude. That cycle is what breaks them. Most people call after a brown ring shows up on a ceiling, or after they walk the roof and find a seam curling at the edge.
Flat roof repair means finding where water actually gets in — which is almost never where it drips inside — opening that spot up, drying or replacing what the water ruined, and closing the membrane back up so it sheds water the way it was built to.
Utah's roofing experts you can count on
We do flat roof repair the slow way: find the real entry point before anything gets patched.
A flat roof is not flat. It has a slight pitch toward drains or scuppers, and water finds the low spot every time. When a roof leaks, water can travel ten or fifteen feet along the deck or down a joist before it comes through the drywall. Patching the drywall side of that trip fixes nothing.
So we start on the roof, not in the room. We look at the seams, the flashing where the roof meets a parapet or a wall, the drains, the pipe boots, and any penetration someone added later for a swamp cooler, vent, or satellite mount. Those add-ons are where most flat roofs fail.
What the job involves
First, the look. We walk the membrane and check what it is — TPO, EPDM rubber, modified bitumen, or an older built-up tar and gravel roof. The material decides how it gets repaired, because a TPO seam is heat-welded and an EPDM seam is glued, and treating one like the other just buys a few months.
Then we track the water. Ponding marks, blistering, open laps, splits at the edge of a curb, loose termination bar, cracked pitch pans around pipes. We press on soft areas to find wet insulation under the membrane. If the deck feels spongy, the problem is bigger than the surface.
Then the repair. Loose or wet material comes out. If the insulation underneath is saturated, patching over it traps the water and the deck keeps rotting. We cut back to dry, solid decking, replace what came out, and tie new membrane into the old with the right seam method for that material. Flashings get redone at walls, curbs, and penetrations, because that is where most of these leaks start.
Last, the water test. We run water on the repair and watch inside before calling it done.
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Full walk of the membrane, seams, flashings, and drains
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Identification of the roof type before any product touches it
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Moisture check for wet insulation and soft decking
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Removal of saturated material down to sound deck
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Replacement of decking or insulation where it is needed
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New membrane patch seamed the way that material requires
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Flashing and pitch pan work at walls, curbs, and pipes
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Drain and scupper clearing so water leaves the roof
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Water test on the repair
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Debris hauled off and the ground magnet-swept
When you need it, and when you don't
Handle it now: an active drip during rain or snowmelt, a ceiling stain that grows, a split or open seam you can see daylight or deck through, a soft spot that sinks under your foot, or a drain that will not take water. Wet insulation spreads sideways. Every week it sits, the repair gets bigger.
It can usually wait: minor surface crazing on an older coated roof, gravel that has shifted, a small amount of ponding that clears within a day or two of the storm, a little granule loss at the edge of a mod-bit cap sheet. Those are worth watching and worth getting on a schedule, but they are not an emergency.
What we will not do is tell you a roof is failing because a storm came through. If the membrane is sound and one flashing is loose, we will say so and fix the flashing.
What our weather does to a flat roof
North Salt Lake sits above 4,200 feet along the bench, and that elevation shows up in the roofing. UV is stronger here, so membranes chalk, shrink, and get brittle faster than the brochure suggests. Shrinking membrane pulls at the corners and the termination bars, and that is where it opens.
Then there is the freeze-thaw. A sunny January afternoon melts the snow on a dark roof, the water runs toward a drain, and the temperature drops at sundown before it gets there. Ice sits on the low spot. It expands into every small gap in a seam, and does it again the next day.
Inversion season keeps a flat roof damp and cold for weeks, so nothing dries out. Wind off the canyons and down the valley lifts loose edge metal and peels back any lap that was already open.
A lot of the flat and low-slope roofs around here are additions, garages, and porch covers tied into a sloped shingle roof. That transition is the single most common leak point we find in Bountiful, Farmington, and the rest of the valley.
What it costs, and what moves the price
We price a flat roof repair after we see it, because the thing that moves the number is almost always hidden until we open it up.
What matters most: how much wet material has to come out. A clean seam repair on a sound roof is a different job than cutting out forty square feet of soaked insulation and replacing decking underneath.
Also in play — the membrane type, since welded TPO, glued EPDM, and torch-applied mod-bit all need different labor and equipment. The size and number of repair areas. Roof access, which on a second story or a tight lot can mean more setup than roofing.
The number of penetrations, curbs, and wall flashings in the work area. Whether drains need rebuilding. And whether the existing material is still made — older roofs sometimes need a compatible system rather than a matching one.
You get the number before we start, not after.
Our process
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Flat roof repair questions
How do you find a leak on a flat roof?
By tracking it backward. Water runs along the deck before it drops, so we start uphill of the stain and check seams, flashings, and penetrations in that path.
Can a flat roof be repaired in winter?
Often, yes. Cold affects adhesives and welds, so the method may change and some work waits for a dry window. We will tell you if a repair should be temporary until spring.
Is ponding water a problem?
Standing water that clears within a day or two is normal on many flat roofs. Water that sits for weeks breaks down membrane and loads the structure. That one needs attention.
Can you patch over wet insulation?
No. It traps the moisture against the deck and the rot keeps going under a sealed surface. The wet material has to come out for the repair to hold.
Should I just coat the whole roof instead?
A coating works on a sound roof with good seams. On a roof with wet insulation or split laps, it hides the problem. We look first and tell you which one you have.
How do I know if it is the roof or the swamp cooler?
Timing. Leaks that show up in summer with no rain usually trace to cooler lines or condensation. We check the unit and its curb before blaming the membrane.
Will my insurance cover this?
That depends on your policy and the cause, and the adjuster makes that call, not us. We document what we find with photos so you have something to submit.
At what point is repair not worth it?
When the membrane is shrunken and brittle across the whole roof, or when wet insulation covers a large share of the deck. Then you are patching one failure a season.
Related work
If your leak is somewhere else, start here instead: Roof Repair, Roof Inspection, Storm Damage Roof Repair, and Emergency Roof Repair in North Salt Lake if water is coming in right now.
Get a look at it
Call White Ridge Roofing at (801) 880-7663 and tell us what you are seeing. We will get on the roof, find where the water is actually getting in, and show you photos of it before anything gets priced.
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954 Mink Cir, North Salt Lake, UT 84054