The low roof over your back porch, garage or Florida room holds water after every afternoon storm, and now there’s a brown ring on the ceiling underneath. Someone told you TPO roofing in Daytona Beach is the answer. Someone else said to just patch it. You’d like to know which one is true for your roof before you spend a dollar.
That’s a fair thing to want. Flat roofs hide their problems well, and the person standing in your driveway may not be the one who’ll be around in two years if the fix doesn’t hold.
APC Roofing has worked on Florida roofs since 2017. We’re licensed in Florida (CCC1337030), insured and GAF Certified, and the inspection costs you nothing. Call 386-259-8425 and we’ll come take a look.
What TPO roofing is
TPO stands for thermoplastic polyolefin. It’s a single-ply membrane that comes in wide rolls, usually white, and it’s laid over a low-slope roof deck on top of insulation or a cover board. The sheets overlap at the edges, and those overlaps are welded together with hot air so the seam becomes one continuous piece of plastic.
That welded seam is the big difference between TPO and an older rubber roof. On an EPDM roof, the seams are held with primer and tape. On TPO, a roofer runs a hot-air welder down every lap and then checks the joint with a probe to find any gap before it can leak.
Around Daytona Beach you’ll see TPO on rear porches, carports, garage roofs, room additions and the flat sections of split-level homes. It’s also common on small commercial buildings and strip-center roofs.
Why a white membrane makes sense on the coast
A dark flat roof in Volusia County gets very hot by mid-afternoon. A white TPO surface reflects a large share of that sunlight back, so the roof stays cooler and the room underneath doesn’t cook. If that room is a Florida room or a converted garage with its own AC, you’ll often notice the difference.
Heat isn’t the only thing the coast throws at a low roof. Summer storms dump a lot of rain in a short time, and on a flat roof that water has nowhere fast to go. During hurricane season, wind pulls hard at the corners and edges of a low roof, and a loose piece of edge metal can let the wind get under the membrane and peel it back.
A TPO roof that’s built well handles all of that. The edge metal is fastened close together, the membrane is attached to match the wind it will see, and the drainage is planned before the first roll goes down.
Drainage comes first on any TPO roof
No flat roof is truly flat. Building codes call for at least a quarter inch of fall per foot on membrane roofs so water moves to a drain, a scupper or a gutter. When the framing has sagged or the slope was never right, water sits in puddles.
Roofers generally treat water still standing 48 hours after rain as a problem. Ponding ages the membrane faster, collects dirt and algae, and adds weight to the framing. A new TPO sheet laid over a low spot won’t fix it. The fix is tapered insulation, a cricket to turn the water, or an added drain, and that gets decided before the new membrane goes on.
TPO thickness, attachment and the tie-in
TPO is sold by thickness in mils. A 60-mil membrane is thicker than a 45-mil one and stands up better to foot traffic, dropped tools and years of sun. The thickness should be written on your estimate, because from the yard every membrane looks the same.
The membrane can be fully adhered with bonding adhesive or mechanically fastened through plates into the deck. The right choice depends on the deck, the building height and the wind exposure.
The trickiest spot on most homes is where the flat roof meets the main shingle or tile roof. Done right, the membrane runs up under the upper roof so water from above lands on top of it. Done backward, water slides under the lip, and you get the classic drip at the inside corner of a porch ceiling.
TPO repair or a new roof?
Many TPO leaks come from one spot: a seam that wasn’t welded fully, a puncture from a dropped screw, flashing that’s pulled loose at a pipe or curb. A small hole caught early usually takes a welded patch and nothing more.
Replacement starts to make sense when seams are failing across the roof, the membrane has gone brittle and cracked, or the insulation underneath is soaked. Wet insulation can’t be dried in place, and sealing a new membrane over it traps the moisture. A moisture meter or a small test cut tells you how far the water has spread, and you’ll see those findings before you decide anything.
If your flat roof is a different material, our flat roof repair in Daytona Beach page covers the fix, and our EPDM roofing page explains how rubber compares. For a whole new low-slope roof, see flat roof installation.
How it works with APC Roofing
- Book your free inspection. Call 386-259-8425 or request a free online estimate.
- Get a clear, honest assessment and estimate. We check the drainage, probe the seams, look at the edge metal and tie-ins, and test for wet insulation. You get photos and a written estimate that says whether a repair will do or the roof needs replacing.
- Get the work done and the site cleaned up. The crew installs the membrane and flashing and cleans up before they leave.
Financing is available through Aqua Finance, Fortifi, Hearth and Home Run Finance if you’d like to spread out the cost.
TPO roofing questions from Daytona Beach homeowners
Is TPO better than EPDM in Florida?
For most Florida homes, a white TPO roof stays cooler than black EPDM, and its welded seams hold up well. EPDM still has its place, especially for repairs on an existing rubber roof. We’ll tell you which fits your roof and why.
Can TPO go over my old flat roof?
Sometimes. An overlay only works when the existing roof is dry underneath and the code allows another layer. If the insulation is wet or there are already two roofs on the house, the old material has to come off.
Do you install TPO on commercial buildings?
Yes. TPO is one of the most common membranes on low-slope commercial roofs. Our commercial roofing in Daytona Beach page has more on that work.
Why is water pooling on my flat roof?
Usually a sagging section of framing, a clogged drain or scupper, or a roof that was built with too little slope. A new membrane alone won’t stop it, so the slope or drainage has to be corrected too.
A low roof you don’t have to think about
A small seam leak on a flat roof can soak the insulation over a single rainy season, and then a simple patch turns into a tear-off. Catching it early keeps your options open.
Call 386-259-8425 to book your free inspection, or start your estimate online. The goal is a low roof that drains, stays dry through storm season and lets you stop checking the porch ceiling after every rain.
