Why TPO Works So Well Here
St. Charles County summers are hot and humid, and a dark roof on a warehouse or strip center can get far hotter than the air around it. TPO's white surface reflects much of that sunlight, which takes load off rooftop HVAC units and can make a real difference on cooling bills for large, single-story buildings.
Winters bring the other problem: freeze-thaw cycles, ice at the drains, and the occasional hailstorm. TPO stays flexible in cold weather, and because every seam is heat-welded into one continuous sheet, there are no glued laps for water to work its way into.
TPO Services We Offer
New TPO roof systems
For new construction or a full tear-off, we install insulation to meet current energy code, a cover board where it's needed, and a mechanically fastened or fully adhered TPO membrane. Every wall, curb, pipe and drain gets its own detail, because that's where roofs leak, not in the middle of the field.
TPO recovers
If your building has one existing roof and the insulation underneath is mostly dry, a recover can save the cost and mess of a tear-off. We core-cut the roof first to see what's really under there. If moisture is limited to a few areas, those sections are cut out and replaced before the new membrane goes down.
TPO repair
TPO problems usually show up in the same few places: seams that weren't welded fully, punctures from dropped tools or HVAC service, shrinking flashing at parapet walls, and ponding near clogged drains. We probe-test the seams, find the actual source of the leak, and weld in new material rather than smearing caulk over it.
Signs Your TPO Roof Needs Attention
- Seams you can lift with a fingernail or probe
- Water stains on ceiling tiles near rooftop units or walls
- Water standing on the roof for more than two days after rain
- Cracking, chalking, or exposed scrim (the fabric inside the membrane)
- Flashing pulling away from walls, curbs, or skylights
Not sure it's TPO? Plenty of building owners and managers don't know what's on their roof. Send us the address and we'll tell you what system you have and what condition it's in.
Buildings That Are a Good Fit for TPO
TPO makes the most sense on large, low-slope roofs: distribution warehouses along the I-70 and Highway 40/61 corridors, retail and strip centers, office buildings, schools, and newer churches with flat sections. It's also a common choice when an older built-up or modified bitumen roof reaches the end of its life.
What to Expect From Us
We start with a free assessment: we walk the roof, take photos, check the seams and flashings, and core-cut if a recover is on the table. You get written options. Sometimes that's a repair, sometimes it's a recover, and sometimes the honest answer is that replacement is the better long-term value. We schedule the work around your tenants and business hours, and we keep the site clean while we're there.
TPO Roofing Questions
How long does a TPO roof last in Missouri?
A well-installed TPO roof commonly lasts 20 to 30 years. Membrane thickness, how well the seams and flashings were welded, drainage, and how much foot traffic the roof gets all affect where in that range yours lands.
Can TPO go over my existing roof?
Often, yes. If the existing roof is mostly dry and there's only one roof on the building now, TPO can usually be installed over it with a cover board. Building code limits how many roofs can be stacked, and wet insulation has to come out, so we check with a core cut before recommending a recover.
Is TPO or EPDM better for my building?
Both are solid single-ply systems. TPO's white surface reflects heat, which helps buildings with a lot of air conditioning load, and its welded seams are very strong. EPDM handles cold and movement well and is easy to repair. We'll explain which fits your building, budget and use.
Do you repair TPO roofs installed by other contractors?
Yes. Most of the TPO repair we do is on roofs someone else installed. Common fixes are opened seams, punctures near rooftop units, and failed flashing at walls and curbs.