A drip shows up on the porch ceiling during a hard afternoon storm, then stops when the rain does. A week later it’s back, and the stain is a little bigger. You need flat roof repair in Altamonte Springs, but you also need someone to find where the water is really getting in, not just smear tar over the spot above the stain.

That frustration is common. Flat roof leaks are hard to track down, and a lot of homeowners have paid for a patch or two that didn’t hold. You deserve a repair that fixes the cause, and an honest answer if the roof is past the point where repairs make sense.
APC Roofing is GAF Certified, licensed in Florida (CCC1337030) and insured, and your inspection is free. Call 407-270-1129 to have your flat roof looked at.
Why the stain isn’t where the leak is
On a flat roof, water rarely drips straight down. It gets through the membrane at one spot, then travels through the insulation or along the deck before it finds a way into the ceiling. The stain on your porch can be several feet from the actual opening.
That’s why a patch placed right above the wet spot so often fails. The next storm comes, and the leak comes back. Finding the real source means walking the whole roof slowly, checking every seam and detail upslope of the stain, and sometimes testing a small section with water to confirm it.
Where flat roofs in Altamonte Springs usually leak
The open middle of the membrane is rarely the problem. The trouble spots tend to be:
- The tie-in to the main roof. The membrane should run up under the shingles or tile. When it’s lapped the other way, water runs behind it, and the ceiling gets wet right where the porch meets the house.
- Seams. TPO seams are heat-welded and EPDM seams are taped, and either can open with years of heat and movement.
- Pipe boots and pitch pockets. Rubber boots crack in the sun, and the sealant in pitch pockets shrinks and pulls away.
- Edge metal. A loose edge after a windy storm lets water and wind under the sheet.
- Drains and scuppers. Leaves, pine needles and grit block them, and water backs up into seams that were never meant to sit underwater.
- Punctures. A falling branch, a dropped tool or a stray screw from someone servicing the AC unit can slice a membrane.
What flat roof repair in Altamonte Springs usually involves
Most repairs come down to fixing one or two specific details. On a TPO roof, an open seam or a puncture gets a matching patch heat-welded over it, then probed to make sure the weld is solid. On EPDM, the area gets cleaned and primed and a cover patch goes on with rounded corners, since square corners tend to lift. Cracked pipe boots get replaced. Loose edge metal gets refastened or replaced. Drains get cleared and their strainers put back.
Every one of those repairs needs a dry, clean surface to bond. In the rainy season that means working between storms, so timing matters.
Ponding and wet insulation
Water that’s still sitting on your flat roof two days after a storm points to a low spot, a sagging deck or a blocked drain. Constant standing water ages the membrane faster, grows algae and adds weight that makes the dip deeper. Clearing the drain sometimes solves it. If the low spot is in the structure, it takes tapered insulation or an added drain to fix for good.
Wet insulation is the other thing a repair has to account for. A membrane can look fine while the insulation under it is soaked. A moisture meter or a small test cut shows how far the water has spread. Small wet areas can be cut out and replaced. If it’s widespread, patching the surface just seals the water in, and a new roof is usually the better choice. Our flat roof installation in Altamonte Springs page explains what that involves.
Storm damage and insurance
If a hurricane or a hard storm tore up your flat roof, you file the claim with your insurance company and you pay your deductible. We document the damage with photos, give you a written estimate and work with your adjuster.
If the leak is on the sloped part of your house instead, see our roof leak repair in Altamonte Springs page.
How it works
- Book your free inspection. Call 407-270-1129 or request a free estimate online.
- Get a clear, honest assessment and estimate. We check the drains, seams, edges, penetrations and the tie-in, test for wet insulation where there’s a leak, and show you photos of what we found. If a repair will do the job, that’s what you’ll hear.
- Your roof gets fixed and the site gets cleaned up. Financing is available through Aqua Finance, Fortifi, Hearth and Home Run Finance.
Flat roof repair questions
Why does my porch roof only leak in heavy storms?
Hard, wind-driven rain pushes water into small openings that a light rain never reaches, like a lifted seam corner or a reversed tie-in. A backed-up drain can do it too.
Is a patch a real fix?
On a sound roof with dry insulation, a properly bonded patch is a lasting repair. A patch over wet insulation or a failing seam line isn’t.
Can you fix a flat roof leak while it’s raining?
Membrane repairs need a dry surface to bond, so the permanent fix waits for dry weather.
Can you tell if the insulation under my flat roof is wet?
Yes. A moisture meter and, if needed, a small test cut show whether it’s wet and how far it has spread.
Get the leak fixed for good
A slow flat roof leak soaks the insulation and the wood under it long before the ceiling shows much. Call 407-270-1129 to book your free inspection. You’ll know where the water is coming from, what it takes to stop it and what it costs, and your porch ceiling can stay dry through the next storm season.
























