Elizabeth Irving
Gulf South Roofing has a great staff to work with. They handled our large job perfectly. They can do a lot of different things in their metal shop. I would recommend them highly for any of your needs.
Commercial Flat Roofing on the Mississippi Gulf Coast
Gulf South Roofing installs and repairs TPO, PVC and modified bitumen systems — and silicone restoration coatings — for commercial buildings across the Gulf Coast, from its Gulfport office.
- Certified in TPO, PVC & modified bitumen
- Self-performing crews
- Manufacturer-backed systems
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Tell us what's going on. We'll call you back the same business day.
Commercial Flat Roofing on the Mississippi Gulf Coast
Gulf South Roofing installs commercial flat roof systems across the Mississippi Gulf Coast from its Gulfport office. The company is certified in TPO, PVC and modified bitumen membranes, which come with manufacturer warranties and reflective, energy-saving surfaces, and applies silicone restoration coatings where the roof underneath has life left. Every installation carries a written workmanship warranty.
The problem
What does flat and low-slope roofing include?
A commercial flat roof is a drainage system with a membrane on top. Everything below decides whether the building stays dry: the deck, the slope to the drains, the terminations, and what happens where equipment penetrates it.
In the order it happens on your roof
Six stages
The right membrane for the roof
TPO, PVC or modified bitumen chosen by the building, its use and its drainage — not by what is on the truck. The recommendation comes with the reasons.
Substrate and drainage assessment
Ponding is the enemy. We assess the deck, the slope to the drains, and the drains themselves before quoting a membrane over the top of a drainage problem.
Mechanically fastened or fully adhered
Single-ply systems attach either at the seams with plates and screws, or fully adhered to the substrate. We install both and specify which and why.
Welded seams and flashed penetrations
Heat-welded seams on TPO and PVC, and every curb, pipe and unit flashed in the membrane manufacturer’s details.
Edge metal and copings
Perimeter metal fabricated in our own Gulfport sheet metal shop — the edge is where a flat roof fails in wind.
Restoration coatings where they fit
A silicone coating over a sound existing roof can defer a replacement for years at a fraction of the cost. We say when it fits — and when it would be money on a roof that needs replacing.
The systems
Flat roof systems we install in Gulfport and across the Gulf Coast
What is TPO roofing?
TPO (thermoplastic polyolefin) is the most common single-ply membrane in commercial roofing — a white, heat-welded, reflective sheet that is durable, energy efficient and fire resistant.
- Welded seams: Hot-air welded into one continuous sheet — the seam is as strong as the field.
- Energy efficient: Reflective white surface lowers rooftop temperature and cooling load.
- Two attachments: Mechanically fastened or fully adhered, specified per building.
Track record
Flat roof work across the coast
- 3Membrane families in-house
- 1013+Projects completed since 2019
- 8+Coating-compatible substrates
- 3, 5 or 10Year workmanship warranty
Flat roof work across the coast
What to expect
How a flat roof project works
Free assessment
Same weekWe walk the roof, photograph the field, seams, drains and edge metal, and check how water actually leaves it. Where a re-roof is on the table we take a core sample through the existing assembly — it is the only way to know what is under the membrane before pricing the work over it.
You receivePhotographed findings, a core where a re-roof is in play, and a condition summarySystem recommendation
1–2 daysA written estimate naming the membrane or coating, the attachment method and the warranty — with the reasoning, and with alternatives priced where more than one fits.
You receiveLine-item estimate with warranty termsScheduling and prep
Booked to your dateFor occupied commercial buildings we sequence the work to keep you operating — staging, access and tenant notice agreed before day one.
You receiveA confirmed schedule and a named crew leadInstall and closeout
Scoped per roofMembrane laid and welded or coating applied, penetrations flashed, edge metal set. The project manager walks the roof with you at the end.
You receiveWarranty documents and a completed final walkthrough
What commercial customers say
Michael Powell
Gulf South Roofing does not complete a job until it is done right. They came in and followed up on resolving other issues with our standing seam metal roof done by another local roofing company. If you value integrity, professionalism, quality work, and competitive pricing, check out Gulf South Roofing.
Jodie Wyrick
Customer service was SPOT ON! Quick response, always answered my questions, did the work as promised WHEN promised! Highly recommend and will recommend to my clients.
Flat roof FAQs — Gulfport & the Mississippi Gulf Coast
What commercial flat roof systems do you install?
TPO, PVC and modified bitumen membranes, plus silicone restoration coatings over sound existing roofs.
The recommendation is driven by the building: deck, drainage, rooftop use and what operates underneath. The bid names the system, the attachment method and the warranty so it can be compared line for line.
Which is better — TPO, PVC or modified bitumen?
None is better in general; each fits different buildings. TPO for most commercial roofs, PVC where chemical resistance matters, modified bitumen for small or high-traffic sections.
The honest answer depends on the deck, the drainage, what sits on the roof, and how the space below is used. The estimate names the system we would put on our own building in your position, and prices an alternative where one genuinely fits.
How long does a commercial flat roof last on the Gulf Coast?
A properly installed single-ply membrane typically runs 15 to 30 years; a silicone restoration coating adds years to a sound existing roof.
The spread depends on membrane thickness, attachment, drainage and traffic. Ponding water and unflashed penetrations shorten any flat roof; both are addressed in the installation rather than left for maintenance to catch.
Is a coating a real alternative to replacing my commercial roof?
Sometimes — a silicone coating over a sound, dry roof defers replacement for years at a fraction of the cost. Over a wet or failing roof, it is wasted money.
The difference is what is underneath. We check for trapped moisture before recommending a coating, and if the roof is too far gone we will tell you that instead of selling the cheaper line item.
Do you handle flat sections on homes too?
Residential low-slope has its own page and its own crews — porches, dormers and additions below shingle pitch.
See residential flat and low-slope roofing. This page covers commercial buildings.
Where do you install commercial flat roofs?
Across the Mississippi Gulf Coast and the surrounding region, from our Gulfport office and shop.
Commercial engagements are scoped per project — if your building is beyond the immediate coast, ask. The office responds the same business day.
Reviewed by the Gulf South Roofing team · Last updated 2026-08-23
Request a commercial flat roofing bid
Send the address or the plans. Gulf South Roofing will assess the roof and the drainage, name the system that fits, and return a line-item bid you can hold us to.
Gulf South Roofing · 2811 26th Avenue, Gulfport, MS 39501(228) 231-1630 · gulfsouthroofs@gmail.com