Flat roof repair and TPO replacement for Fayetteville homes and small commercial buildings
Low-slope roofs fail differently from shingle roofs. Water sits instead of running off, the seams carry the load, and one bad flashing at a rooftop unit can soak a ceiling. We repair them, recover them and replace them.
Flat roofs turn up in more places than people expect. Porch and carport roofs. Room additions tacked onto the back of a ranch house. Rear sections of older homes. And the small commercial buildings around Fayetteville, the offices, shops, churches and strip storefronts, most of them with heating and cooling units sitting on the roof. None of them are truly flat; a good low-slope roof falls gently toward drains, scuppers or a gutter, and most of its trouble starts where that slope doesn't work.
The membrane decides how it is repaired. TPO is a white single-ply sheet with seams welded together with hot air; it reflects summer sun and is our usual choice for new low-slope work. EPDM is black rubber with glued or taped seams, durable and easy to patch. Older roofs may be modified bitumen or built-up layers. Before quoting a patch we probe the insulation under the membrane. Dry insulation and a leak at one seam or one flashing is a repair. Soaked insulation means the roof is holding water inside itself, and patching the top just hides it.
Standing water is the slow killer. If puddles are still there a day or two after a summer downpour, that low spot is wearing the membrane faster than the rest of the roof and loading the structure. With about 47 inches of rain a year here, and July the wettest month, ponding gets corrected rather than tolerated: tapered insulation, a small cricket behind a unit, or another drain or scupper.
Most flat-roof leaks begin at the edges and the openings, so that is where repairs focus: welded seams that have opened, punctures from dropped tools, flashing at curbs under rooftop units, parapet walls, drains and scuppers. Commercial owners and property managers get a written condition report with photos they can use to plan the next few years' budget.
What the job covers
Leak tracing on low slopes
Water travels under a membrane before it shows inside, so we find the real entry point before cutting anything.
Heat-welded TPO seams
White reflective membrane with hot-air welded seams, the standard for new low-slope work here.
Wet insulation found
We probe for soaked insulation; when it is wet, a patch only hides the problem.
Ponding fixed at the source
Tapered insulation, crickets or added drains where water stands after rain.
Curbs, walls and drains
Flashing at rooftop units, parapets, scuppers and drains rebuilt, where most flat-roof leaks start.
Reports for owners
Photo condition reports for commercial owners and property managers planning a budget.
Flat roof costs in the Fayetteville area
| Work | Budget range | What to know |
|---|---|---|
| TPO membrane, per sq ft installed | $4.50 – $16 | HomeAdvisor national range |
| TPO roof, typical project | $6,500 – $24,000 | National average about $10,700 |
| Leak repair on a flat section | $360 – $1,550 | Angi's national range for leak repair |
| Flashing repair at a curb or wall | $200 – $500 | Angi's national flashing range |
| Porch or carport membrane | Quoted after measuring | Small areas carry a minimum charge |
| Wet insulation replacement | Itemized by area | Found and photographed during tear-off |
Ranges from national cost guides. The real number depends on the size, what is underneath and how the roof drains, and you get it in writing after we have been up there.
On the job
Flat and TPO roofs: what people ask us
Should I repair or replace my flat roof?
If the leaks are at seams or flashings and the insulation is dry, repair it. If the insulation is soaked, the membrane is brittle across the whole field, or it leaks in several places, replacement usually costs less over a few years.
Is TPO better than EPDM?
Both work. TPO's white surface reflects summer sun and its seams are welded; EPDM is proven and easy to patch. For most new low-slope work around Fayetteville we recommend TPO.
How long should water sit on a flat roof?
Not long. If puddles are still there a day or two after rain, that low spot is wearing out faster and should be corrected with tapered insulation or better drainage.
Do you work on commercial buildings?
Yes, small commercial buildings with low-slope roofs: offices, shops, churches and storefronts. Projects that reach $40,000 are run under a North Carolina general contractor licence, as state law requires.
Can you fix the flat roof over my porch?
Yes. Porch and carport roofs often leak, usually at the joint where they meet the house.
Is it safe to walk on a flat roof?
Lightly, for service. Heavy traffic and dropped tools puncture membranes, so we suggest walk pads around rooftop units that get regular service.