(214) 437-7353
Hours:Monday - Friday | 8 AM - 6 PM
Saturday | 9 AM - 2 PM
Saturday | 9 AM - 2 PM
Insured North Texas roofers installing, repairing, and maintaining TPO membrane on Highland Park homes and small commercial buildings
TPO roofing is a single-ply thermoplastic polyolefin membrane laid in wide sheets and joined with heat-welded seams, and it is the system specified for flat and low-slope roof areas where shingles cannot shed water fast enough to stay watertight. In Highland Park, those areas are rarely the whole roof. They are porch and portico decks, rear additions, the flat roof over a garage or pool house, and the parapet sections on the commercial buildings near Highland Park Village. A white TPO surface also reflects more sunlight than the dark built-up roofing it usually replaces, which lowers the heat load on the section beneath it.
At Acorn Roofing, we have spent nearly a decade on roofs across Highland Park and the greater Dallas area, and low-slope sections hold a disproportionate share of the leaks. If water is backing up behind a parapet, blistering under an old membrane, or showing on a ceiling below a flat section, we can tell you whether the membrane can be repaired or has to come off.
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We install TPO over a prepared deck with rigid insulation and a cover board beneath it, in either a mechanically attached or fully adhered assembly depending on the deck, the slope, and the exposure. Sheets are hot-air welded to one another, so the seam becomes a fused joint rather than a glued lap. On a replacement, failed built-up and modified bitumen comes off down to the deck first, because tear-off is what exposes soft decking, saturated insulation, and crushed slope, sending water the wrong way.
A punctured or split membrane is repaired with a welded patch of the same material, not with sealant, which fails on thermoplastic at the next thermal cycle. We also probe the surrounding seams while we are up there.
Most low-slope leaks in Highland Park start at a penetration rather than in the open field of the membrane. We detail pipe boots, equipment curbs, scuppers, roof drains, and the wall and parapet terminations where the membrane turns up. Our flat roofing work covers the same details on other systems.
An inspection separates a membrane aging normally from an assembly that is already wet underneath. We check seam condition, membrane thickness at the wear points, ponding marks, drain and scupper function, and the flashing at every penetration, then put the findings in writing with photographs. Low-slope roofs fail from neglect more often than from age, so scheduled drain clearing and seam checks through the Roof Shield Care Club are what get a membrane to its service life. After hail or wind, we document what we find for your carrier as part of our storm damage repair work.
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A TPO membrane is watertight from above and nearly vapor-tight as well, so the moisture that reaches a Highland Park low-slope assembly usually arrives from inside the building rather than from the sky. That is what separates a membrane roof from the shingle roofs on the same street.
The local air supplies it. The National Weather Service Fort Worth/Dallas office records an annual average dew point of 55.0 degrees at DFW and a normal 6 a.m. relative humidity of 82 percent in its 1991 to 2020 climate normals. Air holding that much vapor rises into a roof assembly through gaps at penetrations, hatches, and wall terminations, and keeps rising until it meets a surface cool enough to condense on.
Under a sealed membrane that moisture has nowhere to go. It collects in the insulation, and wet insulation stops insulating. The membrane then blisters where trapped vapor expands in the afternoon sun, and the seams carry stress they were not built for. By the time a stain shows on a ceiling the assembly has often been wet for a season, which is why patching rarely holds.
We at Acorn Roofing survey for trapped moisture before we quote a Highland Park membrane roof, not after. Wet insulation comes out, because new TPO over a saturated assembly buys a few years at most. Where the assembly is dry, we seal the penetrations and terminations that let vapor in and detail the drainage so water leaves the roof.
A flat section that leaks does not improve on its own, and the longer an assembly stays wet, the more of it has to come off. We can survey your Highland Park low-slope roof and put the price in writing first.
Compare systems on our TPO roofing page, see the parapet and deck work behind commercial roofing, or check the neighborhoods we cover on the Highland Park roofing area page. Owners picking a pitched material too can compare metal roofing and Euroshield roofing.
Get in TouchDo you cover Highland Park, and how quickly can you get out to a flat roof leak?
Yes, Highland Park is inside the area we work daily from our Dallas office on Dallas Parkway. An active leak on a low-slope section is scheduled ahead of routine inspections, because standing water on a compromised membrane keeps moving into the assembly for as long as it sits there. Storm weeks affect timing, so ask early.
Which roofs in Highland Park actually use TPO?
TPO goes on flat and low-slope areas: a rear addition, a porch or portico deck, a garage or pool house roof, or a parapet roof on a commercial building. Most Highland Park houses are a mix of a pitched primary roof in shingle, slate, tile, or metal plus low-slope sections that need a membrane. Shingles lose their watertightness below roughly a 2:12 pitch, which is why those sections get a single-ply system.
What does a TPO roof cost in Highland Park?
We do not publish a range, because the number depends on things only a survey establishes: the square footage of the low-slope area, whether the old roof is torn off, the condition of the decking, the number of penetrations, and whether the membrane is mechanically attached or fully adhered. Estimates are free and come in writing with the scope itemized.
Do I need a permit for a TPO roof in Highland Park?
Yes. The Town of Highland Park Building Inspection Department requires permits for repairs, remodeling, and new construction, and its rules state that inspections must be obtained before concealing work, which on a membrane roof means the assembly gets looked at before the membrane covers it. The Town also requires contractors to be registered with it. Construction is permitted Monday through Saturday, 7 a.m. to 6 p.m., with none on Sunday or Town holidays.
How do I schedule a TPO inspection or estimate in Highland Park?
Book online with Acorn Roofing and we will arrange a free inspection of the low-slope sections of your roof.
We survey with a drone and on foot, check for trapped moisture, and send a written report with photographs before anything is quoted.
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