Modified Bitumen Roofing in Oklahoma is a reinforced asphalt membrane system engineered for the hail, 100-degree summers, and 70 mph wind gusts that punish flat and low-slope roofs here. We install, repair, and maintain mod bit systems for warehouses, retail centers, churches, and schools across the state. If your roof is leaking, ponding, or hailing out every other spring, we can stop the cycle.
Modified Bitumen Roofing in Oklahoma is a low-slope membrane system made from asphalt reinforced with polyester or fiberglass mat, then modified with APP or SBS polymers so it flexes instead of cracking. It goes down in torch-applied, self-adhered, or hot-mopped layers over roof insulation board, with heat-welded seams and metal flashing at every edge. For Oklahoma buildings, that combination handles thermal shock better than standard built-up roofing felt and holds up to hail far better than a thin single-ply.
Flat and low-slope roofs here take a beating most of the country never sees. Hail season runs March through June, then July and August bake the membrane at 150 degrees on the surface, and winter brings freeze-thaw cycles that open seams. When you need modified bitumen roof repair Oklahoma property owners can count on, the fix is rarely a tube of caulk. We find the flashing failure or seam separation, cut it out, and weld in new membrane so the repair outlasts the roof around it.
Every mod bit project we run includes the full assembly, not just the membrane. Deck prep, insulation, flashing, and warranty paperwork are part of the scope. Here is what you get when you hire us for a new roof or a major repair.
We walk the roof, check every drain and penetration, and run a moisture meter and infrared thermal camera across the field. You get photos and a written report showing wet insulation, failed flashing, and remaining service life. This happens before you spend a dollar.
We remove the old membrane and haul it off the same day. Any rotted decking gets replaced before new insulation goes down. Skipping this step is why so many re-roofs fail early, and we do not skip it.
We install roof insulation board at the R-value your building needs, then lay the base and cap sheets with a hot air welder and seam roller. Flashing, edge metal, and drain details are installed as part of the same scope.
You receive manufacturer warranty paperwork from Carlisle SynTec, Firestone Building Products, GAF, or Johns Manville, plus our own workmanship warranty. Terms run up to 20 years on materials depending on the system and building use.
We leave you with a maintenance schedule: clear drains twice a year, inspect seams each spring, and call us after any hail event. Maintenance customers get priority scheduling, which matters when a storm rolls through and every roofer in the state is booked.
We walk the roof, check every penetration and drain, and run a moisture meter and infrared thermal camera across the field to map wet insulation. You get photos and a written report, usually within 24 to 48 hours of the call. If the roof has three years left, we tell you that instead of selling a replacement.
You receive a line-item scope: tear-off square footage, insulation R-value, membrane type, flashing details, and warranty term. Pricing is fixed before work starts. For a 20,000 square foot roof, expect the proposal within two business days and a start date inside two to three weeks.
Crews strip the old membrane, inspect the deck for rot, and replace any compromised substrate. We haul off debris the same day and magnet-sweep the lot for fasteners. On occupied buildings, we stage work in sections so your business stays open and your tenants keep parking where they always park.
We mechanically fasten or adhere roof insulation board, then install the base and cap sheets with a hot air welder and seam roller. Flashings, edge metal, and drain details go in as we move, not at the end. A 20,000 square foot mod bit roof takes our crew 5 to 8 working days, weather permitting.
We flood-test drains, probe every seam, and walk the roof with you before we call it done. You get manufacturer warranty paperwork, our workmanship warranty, and a maintenance schedule. If anything moves in the first year, we come back and fix it at no charge.
We walk the roof, check every penetration and drain, and run a moisture meter and infrared thermal camera across the field to map wet insulation. You get photos and a written report, usually within 24 to 48 hours of the call. If the roof has three years left, we tell you that instead of selling a replacement.
Welds membrane seams at controlled temperature for a watertight bond. Every seam gets probed after welding to confirm the bond before we move on.
Presses welded seams while they are still hot, closing any gaps. This is the step that separates a 20-year roof from a callback.
Maps wet insulation under the membrane without cutting the roof open. We use both on every inspection so you see exactly where the water is.
Cleans the deck and moves material across large roofs without damaging the substrate. On 100,000 square foot buildings, these cut days off the schedule.
Fastens insulation and base sheets, and heats asphalt for hot-mopped details. Used where the spec calls for hot-applied rather than torch or self-adhered.
A 22,000 square foot warehouse with three active leaks and wet insulation across roughly 2,500 square feet. The previous roofer had caulked the seams twice with no result. Ceiling stains were spreading and inventory was at risk.
After: We cut out the failed membrane, replaced the wet insulation, and welded in new plies. The repair took four days and cost under $14,000. Two hail seasons later, the building is still dry and the moisture meter reads clean.
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An 18,000 square foot retail center with a 19-year-old mod bit roof, ponding water near two drains, and hail bruising across the west field. Tenants were complaining about ceiling drips in two suites.
After: Full tear-off, new R-25 insulation, tapered crickets at the drains, and a two-ply SBS system with granulated cap. The job took six working days with no tenant closures. Ponding cleared within 48 hours of the next storm.
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A 9,000 square foot fellowship hall roof at 19 years old, leaking at the entrance and over the kitchen. The church had patched it three times and was facing a full replacement but worried about Sunday services.
After: We replaced the roof in five days, working Monday through Friday and leaving the building watertight each night. New mod bit system, new flashing, and a 15-year manufacturer warranty. The entrance has stayed dry through every storm since.
Book this service →Flat roofs fail in patterns, and Oklahoma weather accelerates every one of them. Here are the problems we get called about most, and what we do about each one.
Ask a pro →We trace the leak to its source with a moisture meter and infrared thermal camera, then repair the flashing failure or seam separation at the source. Most leak repairs are done in one day and carry a workmanship warranty.
We map the low spots, add tapered insulation or a roof coating to restore positive drainage, and clear the drains. Where the structure itself is the problem, we tell you and scope the fix honestly.
We document damage with photos for your insurance claim, then replace the damaged sections and weld new seams. If the field is too far gone, we scope a full replacement and work with your adjuster.
We re-secure edge metal to SPRI and NRCA standards, add fasteners where the original install was light, and weld the lifted membrane back down. On new installs we spec fastening patterns for Oklahoma wind zones.
“We had water coming through the ceiling every time it rained hard. Their crew found two failed seams and a bad flashing detail the previous roofer missed. They cut out the bad membrane, welded in new plies, and we have been dry through two hail seasons since. The repair cost a fraction of what a full replacement would have run.”
Marcus T.Warehouse Owner, Shawnee
✓ Verified“They replaced 18,000 square feet of mod bit on our retail center in six working days without shutting down a single tenant. They staged the tear-off in sections and swept the lot every night. The moisture map they gave us before the bid showed exactly why the old roof was failing. No guesswork, no surprise change orders.”
Dana R.Property Manager, Jenks
✓ Verified“Our fellowship hall roof was 19 years old and leaking at the fellowship hall entrance. De La Cruz gave us three options, including a repair that would have bought us three more years. We chose the replacement and they worked around our Sunday schedule. The new mod bit roof has handled every storm since without a drip.”
Pastor Jim H.Church Facilities Director, Elgin
✓ VerifiedMost modified bitumen roof installations in Oklahoma run $6 to $12 per square foot installed in 2026, so a 20,000 square foot roof lands between $120,000 and $240,000. Repairs are far cheaper, usually $800 to $6,000 depending on how much membrane and insulation gets replaced. Tear-off, insulation R-value, roof access, and whether the deck needs repair all move the number.
A properly installed mod bit roof lasts 15 to 20 years in Oklahoma, and premium SBS systems with a granulated cap sheet can reach 25. Hail is the wild card. One bad storm can end a roof's life in year six. Annual inspections and prompt repair of flashing failures and seam separation are what get you to the top of that range instead of the bottom.
Yes, mod bit handles Oklahoma hail better than most low-slope options because the granulated cap sheet and reinforced mat absorb impact. Class 4 impact-rated products are available and can help with insurance. No membrane is hail-proof at 2-inch stone size, but mod bit usually takes damage in sections, which means a targeted repair instead of a full replacement.
We install and repair modified bitumen roofing state-wide, from Oklahoma City and Tulsa to Shawnee, Enid, Lawton, and smaller towns like Blair, Calvin, and Hammon. Call 18555166090 and we will schedule an inspection, usually within 24 to 48 hours. You get photos, moisture readings, and a fixed written price before any work begins.
We install and repair modified bitumen roofing across Oklahoma, from the metro to rural towns where other contractors will not drive. Our crews stage materials locally, so a job in Shawnee or Jenks does not wait on a truck from out of state. If you need an Oklahoma modified bitumen roofing contractor who covers the whole map, we are it.
Mod bit installation and repair for Shawnee warehouses, retail centers, and churches. We handle hail damage documentation and work with your insurance adjuster to get the claim right.
↗ 02 AnadarkoAnadarko commercial buildings often have aging BUR roofs ready for a mod bit upgrade. We tear off, repair the deck, and install a new SBS system with a manufacturer warranty.
↗ 03 BlairRural Blair buildings get the same certified crews and materials as the metro. We schedule around your operation and haul off debris daily so the site stays clean.
↗ 04 CalvinCalvin property owners call us for mod bit repairs and small re-roofs. We inspect with a moisture meter, fix the source, and weld the repair into the existing membrane.
↗ 05 CheyenneCheyenne roofs face the same hail and wind as the rest of western Oklahoma. We spec impact-rated cap sheets and fasten for high wind zones on every install.
↗ 06 CyrilCyril commercial and church roofs get full mod bit service, from inspection to warranty. We work around services and business hours so your building stays open.
↗ 07 ElginElgin school and church roofs are a big part of our work. We schedule evenings and weekends when needed and leave the building watertight every night.
↗ 08 FosterFoster buildings get honest repair-or-replace calls. If a targeted mod bit repair buys you five more years, we will say so instead of selling a full replacement.
↗ 09 HammonHammon is a long drive for most roofers. We cover it. Mod bit installs and repairs with the same certified crews, materials, and warranties as our metro jobs.
↗ 10 JenksJenks retail and office buildings need tight scheduling and clean job sites. We stage tear-off in sections, sweep the lot nightly, and keep tenants open for business.
↗We inspect, price, and install mod bit roofs state-wide, with manufacturer-certified crews and warranties we honor. Call 18555166090 and we will schedule your roof inspection, usually within 24 to 48 hours. You get photos, moisture readings, and a fixed price before we start.
Schedule Inspection 18555166090 →Call us at 1-855-516-6090 or send a message and we will get back to you within one business day. Our office is open Monday through Friday, 8 a.m. to 6 p.m., and our emergency line is answered 24/7 for storm damage and active leaks. We serve commercial buildings across the entire state of Oklahoma.