TPO and single-ply roofing, built to last.
Flat and low-slope commercial buildings across the DFW Metro need a membrane system that handles ponding water, temperature swings, and heavy foot traffic from rooftop equipment. We install and repair TPO, EPDM, and modified bitumen systems built for that job.
Absolute Professional Roofing Contractors installs and repairs single-ply membrane systems on commercial and low-slope buildings throughout the DFW Metro. TPO, EPDM, and modified bitumen each handle water and heat differently, and the right choice depends on the building's slope, the rooftop equipment it carries, and how the deck was built. This page covers what single-ply roofing is, where it fits, and what we look at before recommending one system over another.
Are your seams or flashing starting to separate on a flat roof?
Separating seams are usually the first visible sign that a single-ply membrane is failing, and they are worth addressing before the next heavy rain. TPO and EPDM sheets are welded or adhered at the seams, and years of thermal expansion and contraction can work those joints loose, especially at parapet walls, curbs, and drains where the membrane changes direction. Once a seam opens, water gets under the membrane instead of running off it, and it can travel a long way before it shows up as a stain inside the building. Catching an open seam early is a repair; letting it run all season is often a section replacement.
Warning signs to watch for
Standing water after 48 hours
Ponding that does not drain within a day or two stresses the membrane and any seams underneath it. It usually points to a low spot in the deck or a drain that is not pulling its share of the roof.
Blistering or bubbling membrane
Raised bubbles in TPO or EPDM mean moisture or trapped gas got under the sheet during installation or through a small breach. Left alone, blisters split and turn into active leaks.
Cracked or lifting flashing at curbs and parapets
Rooftop units, vents, and parapet walls are where membranes are cut and detailed by hand, so they are the first spots to fail. Cracked flashing here lets water straight into the wall assembly or the deck.
Granule or coating wear on modified bitumen
Modified bitumen sheets lose their surface coating with age and UV exposure, and once the mat underneath is exposed the membrane ages faster from that point forward.
What is causing the problem
Age and UV exposure
Every single-ply membrane has a service life, and Texas sun shortens it. Once a membrane is past its expected life, patching buys time but a full replacement is usually the better long-term move.
Poor drainage design
Roofs with too few drains, or drains set higher than the surrounding field, hold water where the membrane was never meant to sit in it long term.
Rooftop equipment traffic
HVAC technicians and maintenance crews walking the same paths repeatedly wear the membrane thin over years, even without any single dramatic event.
Storm or wind damage
High wind can peel membrane at the edges or drive debris into the roof surface, and that kind of damage needs documentation and repair before it spreads.
What to expect during the visit
We start with a free, no-obligation inspection of the entire roof surface, the seams, the flashing details, and the drains, and we photograph what we find. That gives you an honest, documented picture of the membrane's condition before any work is scoped. From there we explain whether a section repair, a full re-membrane, or a coating over the existing system makes the most sense for your building. If the roof is under an active leak, we address that first and follow up with the full inspection once conditions allow.
Related services you may need
A single-ply membrane problem sometimes turns out to be a smaller repair, or it can point to storm damage that needs to be documented separately.
The cost of waiting
A small open seam or a single blister is a manageable repair. Left through a few more Texas summers, that same spot lets water travel under the membrane, soak the insulation board beneath it, and spread the damage well beyond where it started. By the time it shows up as a ceiling stain inside the building, the fix usually involves cutting out and replacing insulation as well as membrane, not just resealing a joint.
How long does a TPO or single-ply roof usually last?
Service life varies with the system, the installation quality, and how much rooftop traffic and sun exposure the roof takes on. Regular inspections and prompt seam or flashing repairs extend that life; deferred maintenance shortens it.
How much does TPO or single-ply repair cost?
Cost depends on how much of the membrane is affected, whether the deck or insulation underneath needs replacement, and how accessible the roof is for equipment. A documented inspection is the starting point for an accurate scope.
Can a single-ply roof be repaired instead of replaced?
Yes, in many cases. Localized seam failures, isolated punctures, and small blisters are typically repairable, while widespread membrane aging or repeated leaks across the roof usually point toward replacement.
If your building's flat roof is showing seam separation, ponding, or wear, give us a call to schedule a free inspection anywhere in the DFW Metro.
- TPO, EPDM, and modified bitumen membranes, protective coatings, and repair for flat and low-slope roofs.