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Do You Need To File An Insurance Claim
Do You Need To File An Insurance Claim
Commercial & Residential / Modified Bitumen Roof Repair
Built layer by layer for Gulf Coast weather.
Modified bitumen is one of the toughest low-slope roofing systems available — but blisters, open laps, cracked cap sheets, and flashing failures do develop over time. Most can be repaired without a full tear-off. Our crews find the real source of the problem and restore your multi-ply system correctly — backed by a workmanship warranty and honest, upfront pricing.
Fast, free, and no obligation.
Common modified bitumen repair problems, identified
Roof Repair
Mod-bit is tough, but specific failure points develop over time. Here are the most common issues our crews repair on APP and SBS modified bitumen systems.
Moisture trapped between the base ply and cap sheet forms blisters that grow, crack open, and give water a direct path into the insulation below.
Torch-fused or adhered laps can separate over time from thermal cycling or improper installation — creating a straight path for water between plies.
Modified bitumen flashing can pull away from parapet walls and penetrations as the material contracts in cooler temperatures — opening gaps that let water in immediately.
Mod-bit leaks often travel between plies far from where water appears inside. We probe, probe, and probe again before we touch a single layer of the system.
Oxidized bitumen develops a scaly, cracked surface pattern called alligatoring. We cut out, torch-in, or cold-process new material over the affected area to restore waterproofing.
When the mineral granules on the cap sheet wear away, bare bitumen is exposed to UV and degrades rapidly. We surface-apply new granules or torch in a fresh cap sheet section.
Why Repair First
Torch-patching a blister or re-fusing a lap costs a fraction of a full system replacement — and can add years to an otherwise sound mod-bit roof.
Most modified bitumen repairs — blisters, open laps, flashing, granule loss — are completed in a single visit with torch or cold-process equipment on the truck.
We match your existing system — APP or SBS, torch-applied or cold-process — so patches bond to the existing plies properly and last.
If alligatoring or delamination has spread system-wide, we’ll tell you honestly — with a clear explanation of why repair no longer makes economic sense.
Our Repair Process
Every modified bitumen roof repair follows the same five-step process, so you always know what’s happening and why.
We walk every ply lap, flashing, and penetration on the roof surface to locate the real entry point — not just where water shows up on your ceiling.
A clear, itemized estimate covering torch patches, lap repairs, cap sheet sections, or flashing needed — no surprises.
If wind, hail, or storm damage caused the problem, we document everything and work directly with your adjuster to support the claim.
We torch-in or cold-process new material over the affected area, re-fuse open laps, and replace flashings — leaving sound plies undisturbed.
We inspect every lap edge, flashing termination, and patch perimeter before leaving — and confirm the repair is fully bonded and watertight.
Repair Services
From blister pop-and-patch to full lap re-fusion, here are the most common repairs our crews perform on APP and SBS modified bitumen systems.
We cut open blisters, dry the substrate, and torch-in or cold-process new material over the area — then granule-surface the patch to match the existing cap sheet.
We torch-fuse or cold-adhere open laps back to the substrate, feather the edges, and granule-surface the repair to restore a continuous multi-ply system.
We torch or adhere new flashing material at parapet walls and penetrations, embed in mastic where needed, and granule-surface for UV protection.
Why Trust Us
Mod-bit diagnosis and repair is a specialized trade. We’ve built our reputation on finding the real leak source and repairs that actually hold — across Mississippi, Alabama, and Georgia.
Top 3% of roofing contractors nationwide — held to a higher standard on every job, big or small.
We understand how APP and SBS systems fail at the ply level — so we find the real source before we torch or adhere anything.
Our modified bitumen repair work carries a workmanship warranty — so if the same area fails, we come back and make it right.
A local crew that shows up when we say we will, not a franchise dispatcher routing work from out of state.
Financing Available
Even a targeted repair can be an unexpected expense. Our team works with flexible financing options so cost doesn’t delay a repair and let a small blister become a full system failure.
“We had a blister the size of a basketball on our modified bitumen roof that three other roofers just coated over. B&A cut it open, dried the substrate, and torched in a proper patch. Two years later, not a drop.”
— A B&A Roofing Customer, Hattiesburg, MS
Get Started Today
Fast, free, and no obligation. Tell us what’s happening and one of our local modified bitumen specialists will follow up to schedule your inspection — often the same day.
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A local B&A Roofing expert will reach out shortly to schedule your free modified bitumen roof repair inspection.
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