Flat Roof Repair in Florence, SC
TPO, EPDM, modified bitumen, and built-up roofing — we repair all flat roof systems on commercial buildings, churches, apartments, and homes throughout the Pee Dee region. SC licensed, fully insured.
Why Florence Flat Roofs Fail — And How Flat Roof Repair Florence SC Solves It
Florence’s climate is uniquely hard on flat roofing systems. Surface temperatures can hit 160°F+ in July. Thermal expansion and contraction cycles stress seams and flashing daily. Heavy rainfall — 50–60 inches annually — tests every drain and termination point.
Membrane Blistering & Cracking
Florence’s intense UV and extreme roof surface temperatures cause EPDM membranes to crack and TPO membranes to blister and delaminate over time. We identify compromised sections, cut out blisters cleanly, and patch with compatible membrane material heat-welded or adhesive-bonded for a permanent repair.
Seam Failure
Heat-welded TPO seams and adhesive-bonded EPDM seams both fail under SC’s thermal cycling. A failed seam is a direct water entry point. We re-weld TPO seams with heat-induction equipment or apply compatible seam tape and sealant — depending on membrane type and age — to restore waterproofing integrity.
Ponding Water Beyond 48 Hours
Standing water on a Florence flat roof beyond 48 hours accelerates membrane degradation and indicates a drainage problem. We assess slope, clear or relocate drains and scuppers, and correct low spots with tapered insulation installation where needed. NRCA standards require minimum 1/4″ per foot of slope.
Flashing Deterioration at Walls & Parapets
Where the membrane terminates at wall bases, parapets, HVAC curbs, and roof penetrations — that’s where 70% of commercial flat roof leaks originate. Termination bars lift, counter-flashing separates, and caulk fails. We replace termination systems properly, not just re-caulk over failed material.
Vegetation & Debris Damage
Florence’s live oaks, sweetgums, and longleaf pines drop debris year-round. Organic matter on a flat roof holds moisture against the membrane, accelerates deterioration, and clogs drains. We clear debris, treat moss and algae growth, and recommend drain guards to prevent recurrence.
Saturated Insulation
The silent killer of flat roofs. When moisture infiltrates through a failed membrane and soaks the rigid insulation board below, the roof becomes heavier, loses R-value, and the wet insulation holds moisture against the decking 24/7. We use infrared scanning to locate saturated sections and replace only the compromised areas where possible.
Every Flat Roof System Used in Florence — We Work on All of Them
Different buildings in the Pee Dee have different systems depending on age and original contractor. Here’s what we see and what to know about each.
TPO — Thermoplastic Polyolefin
White single-ply membrane with heat-welded seams. The best choice for Florence’s climate — reflects UV and reduces cooling loads. Common on newer commercial buildings and re-roofing projects from 2005 on. Seam welding requires calibrated equipment; we don’t use butyl tape as a permanent fix.
EPDM — Ethylene Propylene
Black rubber membrane, either glued, mechanically fastened, or ballasted with gravel. Common on older commercial and residential flat roofs in Florence. The dark surface absorbs heat — roof temperatures can be 20–30°F hotter than TPO in SC summers. Seams are bonded with adhesive and seam tape; proper repair requires matching EPDM material.
Modified Bitumen
Asphalt-based system applied in 2–3 layers, either torch-applied or self-adhering. Very common on older Florence commercial buildings and churches from the 1980s–2000s. Extremely durable when maintained; granule surface protects from UV. Repairs require heat application or compatible cold-process adhesive — not roofing tar from a bucket.
Built-Up Roofing (BUR)
Multiple layers of felt and asphalt, usually topped with gravel ballast. The original flat roof system — many Florence buildings from the 1950s–1980s still have BUR. Can last 25–30 years with proper maintenance. Repairs require hot asphalt or cold-process ply materials; we can also install a modified bitumen cap sheet over aging BUR to extend life 10–15 years.
How We Approach Every Flat roof repair florence sc
Flat roof repairs done wrong just leak somewhere else. We follow a systematic approach to find and fix the actual problem.
Full Membrane & Drainage Assessment
We walk the entire roof surface, check all drains and scuppers for flow, probe membrane for soft spots indicating wet insulation, and photograph every deficiency. We check parapet caps, termination bars, HVAC curbs, and all penetrations — not just the obvious leak area.
Wet Insulation Detection
Water migrates under membranes — the visible damage area is often 6–10 feet from the actual entry point. Where budget and roof age justify it, we use infrared thermal scanning or moisture probing to locate saturated insulation that standard visual inspection misses. This is especially important on older Florence commercial buildings.
Repair Plan & Honest Recommendation
We give you our honest assessment: is targeted repair cost-effective, or has the system reached the point where repeated patches cost more than re-roofing? We provide both options with pricing so you can make an informed decision. We don’t push unnecessary replacement — but we also won’t patch a roof that will cost you more in damage in the next two years.
Material-Matched Repair
Every repair uses materials compatible with your existing system — TPO patches heat-welded with calibrated equipment, EPDM repaired with matching rubber and lap seam adhesive, modified bitumen with torch or cold-process materials. Incompatible repairs fail quickly; we don’t take that shortcut.
Drainage Optimization
We clear all drains and scuppers and check for adequate slope. If drainage correction requires tapered insulation or drain relocation, we scope that work and can include it in the repair project. Ponding water that recurs after a repair means the drainage issue wasn’t addressed.
Documentation & Warranty
Every repair is photographed before and after. We provide a written report of all work completed, materials used, and warranty terms. Commercial property owners receive documentation suitable for maintenance records. Our repair warranties are in writing — not verbal promises.
Florence’s Flat Roof Specialists — Commercial & Residential
We’ve repaired flat roofs on churches along S. Irby Street, apartment complexes near Francis Marion University, retail buildings in the Magnolia Mall corridor, and residential flat-roof sections on homes throughout the Pee Dee. Flat roofing is a specialty — it requires different training, different materials, and different diagnostic tools than pitched roofing. Our team is specifically experienced in all four major systems used in Florence-area buildings.
- SC LLR Licensed — Verify at LLR.SC.gov
- Commercial & residential flat roofing
- TPO, EPDM, modified bitumen, BUR
- Infrared-assisted moisture detection available
- Florence, Darlington, Marion, Dillon, Lake City
- Property management documentation available
Our church on Palmetto Street had a 12-year-old modified bitumen roof that had been patched by two other contractors. These guys found the actual drainage problem — a scupper that had been partially blocked for years — fixed it, re-capped the termination bar on the south wall, and we haven’t had a leak since. Finally.
Managed a commercial strip center off David McLeod. They inspected the TPO roof, found three failed seam sections and two areas of wet insulation I didn’t know about, repaired everything, and gave me a written condition report. Professional work all the way through.
My older home on West Cheves has a flat section over the rear addition. The EPDM membrane was 17 years old and leaking at two corners. They replaced the flat section with TPO and extended it properly into the adjacent pitched shingles. The detail work at the transition was exactly right.
Flat Roof Repair Florence SC — FAQ
How much does flat roof repair cost in Florence SC?
Targeted repairs — membrane patching, seam re-welding, drain clearing, or flashing repair — typically run $400–$3,000 depending on extent. Larger section replacements on commercial buildings run $3,000–$8,000+. Full flat roof replacement averages $5–$12 per square foot depending on system type and building complexity. We provide free on-site estimates for all flat roof work.
What type of flat roof do I have?
The most common systems in Florence: TPO (white or light gray membrane, heat-welded seams — most common on newer commercial buildings), EPDM (black rubber membrane, glued or ballasted — older commercial and residential), modified bitumen (torch-applied or self-adhering asphalt layers with granule surface — churches and older commercial), and built-up roofing or BUR (multiple felt and asphalt layers, gravel-topped — buildings from the 1950s–80s). We work on all four.
How long does a flat roof last in South Carolina?
In Florence’s climate: TPO averages 15–25 years with proper maintenance; EPDM 15–25 years; modified bitumen 15–20 years; built-up roofing 15–30 years with maintenance. SC’s intense UV load and roof surface temperatures above 160°F in summer reduce lifespans compared to northern manufacturer projections. Annual inspection and drain maintenance significantly extend service life.
Why is my flat roof holding water?
Ponding beyond 48 hours indicates inadequate drainage slope (NRCA requires minimum 1/4″ per foot), clogged drains or scuppers, structural deflection from deck or joist movement, or installation defects creating low spots. Some ponding within the first 48 hours after heavy rain is normal. Persistent ponding accelerates membrane deterioration and should be addressed with drainage corrections — not just tolerated.
Can flat roofs be repaired or do they need full replacement?
Most flat roof issues can be repaired if caught early — localized membrane tears, seam failures, flashing deterioration, and drain problems are all repairable. However, if insulation is saturated throughout, or more than 25% of the membrane shows adhesion failure or widespread crazing, replacement becomes more cost-effective than ongoing repairs. We give you both options with honest pricing.
What is TPO roofing and is it good for Florence SC?
TPO is a white single-ply membrane with heat-welded seams. It is excellent for Florence’s climate — the white surface reflects solar radiation, reducing rooftop temperatures by 50–60°F compared to black EPDM, meaningfully lowering summer cooling costs. Heat-welded seams are more durable than adhesive-bonded EPDM seams under SC’s UV and thermal cycling. It’s our most recommended system for flat roof re-roofing projects in the Pee Dee.
How do I know if my flat roof needs repair or replacement?
Repair is viable when: the membrane has isolated tears or seam failures, flashing is the issue, the roof is under 15 years old with otherwise intact membrane. Replacement makes more sense when: the membrane shows widespread shrinkage or crazing, insulation is broadly saturated, the roof is over 20 years old in Florence’s climate, or you’ve had multiple repairs failing in the same areas. We assess this honestly on-site.
Do you work on commercial flat roofs in Florence SC?
Yes — commercial flat roofs are a major part of our work in Florence. We service office buildings, churches, apartment complexes, retail buildings, and warehouses throughout Florence County and the surrounding Pee Dee. We provide detailed written inspection reports for property management records and can coordinate work around business hours to minimize disruption.
Flat Roof Leaking or Ponding? Let’s Assess It.
Free on-site inspection for all Florence-area flat roofs — commercial and residential. We’ll tell you exactly what’s wrong, what it will cost, and whether repair or replacement is the smarter investment.
SC LLR Licensed Roofing Contractor | LLR.SC.gov | Commercial & Residential | Serving the Pee Dee Region