TPO, modified bitumen, and low-slope membrane systems for flat residential sections and commercial buildings across Tampa Bay, built for Florida heat, rain, and ponding.
Every flat & commercial roofing we do, built to last.
Flat and low-slope roofs do not fail the way pitched roofs do. Water does not run off, it sits, and that is the whole problem in Florida. Relentless heat and UV bake the membrane, summer downpours find every seam, and ponding water works on any low spot until the deck gives up. We install and repair flat and low-slope systems across the Greater Tampa Bay metro, Hillsborough, Pinellas, Pasco, Sarasota, Manatee, and Polk counties, for residential flat sections like porches and additions and for commercial buildings like retail, office, and multi-family. We work GAF EverGuard TPO, GAF LIBERTY self-adhered, Mule-Hide low-slope, and modified bitumen, matched to your building and budget. Honesty comes first here. If a coating or a targeted flat roof repair in Tampa buys you years, we will tell you that instead of selling a tear-off you do not need. Every finding is photographed so you always know exactly what your roof looks like up top.
Flat & Commercial Roofing in Tampa Bay: what homeowners should know
Why flat and low-slope roofs fail in Tampa Bay
A pitched roof sheds water in seconds. A flat roof asks the membrane, the seams, and the drains to do that job, and in Florida that is a tall order. The two things that actually kill flat roofs here are ponding water and seam failure, and they feed each other. Water that sits more than 48 hours after a storm breaks down the membrane, works into the seams, and adds weight the deck was never engineered to hold. Once a seam opens, the leak rarely shows up where the water entered, because water travels along a flat roof before it drops through.
Florida's climate accelerates all of it. Relentless heat and UV bake a dark membrane and dry out the sealants and flashing first. Heavy summer downpours test every joint at once. Hurricane season can lift laps and displace membrane in a single afternoon. On coastal properties in Pinellas, Sarasota, and Manatee, salt air corrodes the metal flashing and fasteners that hold the system together. None of this is a knock on flat roofs. It is just the reality of what a low-slope system has to survive in this part of the state, which is why the install details and the membrane choice matter so much.
The membranes we install, and when each one wins
We do not sell one product to every building. We install GAF EverGuard TPO for commercial buildings and larger flat areas that take full sun, because the white single-ply surface reflects heat and the seams are heat-welded into a bond stronger than the membrane itself. For flat residential sections and low-slope decks where open flame is not safe, we use GAF LIBERTY self-adhered and Mule-Hide peel-and-stick systems that seal tight without a torch. For smaller flat sections and decks that see foot traffic, multi-ply modified bitumen is tough and forgiving.
Choosing between them comes down to your building, your budget, and how much sun the roof takes. A retail center with a big open deck baking all summer is a different problem than a porch addition tucked behind a two-story home. We walk the roof first, then recommend, and we explain the trade-offs in plain English so the decision is actually yours. As a commercial roof replacement and repair contractor, we have installed all of these systems across Tampa Bay, and we will tell you honestly which one fits.
Repair, recoat, or replace: the honest call
Not every flat roof needs a tear-off, and we will never pretend it does. When the membrane and deck are still sound and the seams are mostly intact, a targeted repair or a fluid-applied Mule-Hide coating can add several years and seal minor issues for a fraction of full replacement cost. That is often the right answer for a roof in its middle years that has been maintained. A roof maintenance plan can stretch that runway even further by catching the small stuff before it becomes a leak.
When the deck is wet, the membrane is brittle, or ponding has been working on the same low spots for years, a coating just buys a little time, and we will say so. The difference between those two situations is exactly what our free inspection is for. We document seams, drains, flashing, and ponding with photos, check the deck for soft spots, and lay the findings out so you can see what we see. Honesty-first means earning the replacement later rather than selling you the wrong fix now.
Permits, code, and the 25 percent rule
Roof work across the Greater Tampa Bay metro is permitted and inspected through the local building department, and the details vary by county and city across Hillsborough, Pinellas, Pasco, Sarasota, Manatee, and Polk. We pull the permit, handle the inspections, and close everything out, so the paperwork is clean if you ever sell, refinance, or file a claim. You do not have to chase any of it.
The 25 percent rule matters more on flat roofs than most people expect. Current Florida Building Code generally requires that when more than a quarter of a roof section is repaired or replaced within a 12-month window, that section be brought up to current code rather than just patched. Because a flat roof is usually one continuous membrane, that threshold can apply to the whole low-slope section at once. We will tell you during the inspection whether your repair stays under that line or whether code pushes you toward a full section replacement, so there are no surprises mid-project.
Insurance documentation, done the right way
A failed flat roof after a named storm is exactly the kind of claim homeowners and property owners need a clear record for. Here is how we help, and where the line is. We inspect, photograph, and provide an itemized estimate you submit to your carrier. You stay in control of the claim, and your insurer makes the coverage decision under your policy. We are a licensed Florida roofing contractor, license CCC1334243, not public adjusters, so we do not handle, file, or negotiate claims on your behalf.
What that documentation gives you is a complete, accurate picture of what failed and what the repair or replacement costs, with photo evidence behind every line. That is the record your carrier wants to see, and it keeps the whole process honest. If you want a deeper paper trail, our insurance documentation support and free roof inspections are built around exactly this kind of clear, photo-backed reporting.
Why Tampa Bay building owners call Integrity
We are a family-run, licensed Florida roofing contractor, license CCC1334243, founded in 2022 and serving the entire Tampa Bay metro. We are GAF Certified and TAMKO Pro Gold Certified, BBB A+ rated, rated 5.0 on Google, and an active BNI member. Those credentials matter, but they are not the reason owners stick with us.
The reason is how we work. We photograph everything, we communicate clearly, and we do not run high-pressure sales. We give you straight repair-vs-replace guidance even when the smaller job is the right one, and we offer GreenSky and Ygrene financing so an aging flat roof does not have to wait for the next leak. We also support real estate closings, including pay-at-closing when approved in writing, which keeps deals moving when a flat roof shows up on an inspection report. Our name is our promise, and quality you can trust is the whole point. Start with an instant roof estimate and we will take it from there.
Flat & low-slope membrane lifespan and best use
System
Typical lifespan
Best for
GAF EverGuard TPO
20-30 years
Commercial and large flat areas in full sun, heat reflection
GAF LIBERTY self-adhered
15-25 years
Low-slope residential sections where open flame is not safe
Mule-Hide low-slope / coatings
10-20 years (coating adds years to a sound roof)
Life extension on a sound, aging membrane
Modified bitumen
15-20 years
Smaller flat sections and decks with foot traffic
Lifespan depends on installation, drainage, sun exposure, and maintenance. Coastal salt air can shorten the life of exposed metal components.
Flat & commercial roofing cost (installed, Tampa Bay)
Roof system
Price per sq ft
Typical 2,000-2,400 sq ft roof
Flat / Low-Slope (TPO, EPDM, Mod-Bit)
$6.00 - $10.00
$12,000 - $24,000
Customer pricing, installed. Upcharges: +$0.25/sq ft for roof complexity, +$0.50/sq ft per extra tear-off layer. Skylights are priced per item at the on-site inspection. Final pricing is set after a free roof inspection.
Diagnostic
Consider flat or commercial work if you see
Not sure if this service is right for your situation? If any of these describe your roof, we should talk.
Standing water that sits on the roof more than 48 hours after Tampa Bay rain
Seams that are lifting, splitting, or peeling apart, especially on older modified bitumen
Bubbling, blistering, or soft spongy areas underfoot on the membrane
Interior leaks or ceiling stains under a flat porch, addition, or commercial bay
Flashing pulled away from parapet walls, drains, HVAC curbs, or roof penetrations
Your TPO or mod-bit roof is 15 or more years old and has never been recoated
Included
What every flat & commercial roofing job includes.
GAF EverGuard TPO for Florida heat
White single-ply TPO reflects the sun instead of soaking it up, with heat-welded seams that bond stronger than the membrane. It lowers cooling load on retail and office buildings that bake all summer.
GAF LIBERTY and Mule-Hide self-adhered
For flat residential sections and low-slope decks where open flame is not safe, GAF LIBERTY self-adhered and Mule-Hide peel-and-stick systems seal tight without a torch. Clean, code-compliant, and built for tough spots.
Ponding water actually corrected
We do not lay new membrane over a low spot that will pool again after the next storm. We correct slope and drainage where the structure allows, so water leaves the roof the way it was meant to.
Modified bitumen where it earns its place
Multi-ply modified bitumen is tough and forgiving on smaller flat sections and decks that take foot traffic. We pick it when durability matters more than reflectivity, never as a one-size-fits-all default.
Honest repair-vs-replace guidance
When the membrane and deck are still sound, a fluid-applied coating or a targeted repair can add years for a fraction of a tear-off. As a GAF Certified contractor we tell you straight which call yours is.
Documentation for your carrier
We inspect, photograph every finding, and provide an itemized estimate you submit to your insurer. You stay in control of the claim. We are licensed roofers, license CCC1334243, not public adjusters.
Our process
How your flat & commercial roofing project actually goes.
01
Free inspection
We walk the full roof, document seams, drains, flashing, and ponding with photos, and check the deck for soft spots. The report is emailed within 24 hours, with no pushy upsell and no pressure to decide.
02
Honest scope and quote
We tell you straight whether a Mule-Hide coating, a targeted flat roof repair in Tampa, or a full GAF EverGuard TPO replacement is the right call. Itemized line by line, with photo evidence and documentation for your carrier if it applies.
03
Schedule and materials
We order the right membrane for your building, whether that is TPO, GAF LIBERTY self-adhered, Mule-Hide, or modified bitumen, book the install window around weather, and coordinate access so we stay out of your tenants' way.
04
Install and cleanup
Install built to current Florida Building Code, TPO seams heat-welded and inspected, drainage corrected, and the manufacturer warranty registered. We finish with a full magnetic sweep of the property before we leave.
Reviews
Flat & Commercial Roofing customers say it best.
★★★★★
5.0on Google
Rated 5.0 on Google by verified Tampa Bay homeowners.
After receiving quotes for several roofing companies, I decided to go with a company other than Integrity Roofing of Florida. My decision was primarily based on the fact they were referred by a friend and offered a slightly lower cost. After six months, my roof was still not complete, and to make matters worse, my roof was leaking. I called Bettina at Integrity Roofing, and she determined that the company I had contracted with was not fully licensed and could not even pull a permit. I am so thankful to Bettina and the staff at Integrity Roofing. They took over the job, pulled the permit, and had the roof completed in a matter of days.
Sisi Molette
★★★★★
My roof suffered damage during Hurricane Milton. Multiple roofing companies came out and the quotes were outrageous. Some were even pressuring me to open a claim against my home insurance for the minor damage. I really enjoyed working with Integrity Roofing of Florida due to the exceptional customer care and great level of communication. They gave me a fair price and completed the work in a timely manner. Highly recommend them for your next home project.
Jacqueline Toledo
★★★★★
As a realtor in the Tampa Bay Area, I have had the opportunity to work with many roofing companies. However, I decided to use Integrity Roofing to replace my own roof as I have personally seen the quality work they have done for my clients. As picky as I tend to be, I was very happy and greatly satisfied with the end result. My roof looks beautiful. I will definitely continue to refer Bettina Savorelli and Mike Sheppard with Integrity Roofing to all of my clients.
Common questions
Flat & Commercial Roofing FAQs
How much does flat roof repair in Tampa cost?
A small, targeted flat roof repair like resealing a seam or re-flashing a single penetration is usually a few hundred dollars, while a larger repair or section replacement runs higher depending on the membrane and the deck condition underneath. Installed flat and low-slope systems run roughly $6.00 to $10.00 per square foot, so a typical 2,000 to 2,400 square foot flat roof lands around $12,000 to $24,000 for a full replacement. We give you an itemized number after a free inspection, never a guess over the phone. You can also start with an instant roof estimate.
What is the difference between TPO, modified bitumen, and self-adhered?
GAF EverGuard TPO is a single-ply white membrane with heat-welded seams that reflects heat and works well on commercial buildings. Modified bitumen is a tough asphalt-based system that holds up on smaller flat sections and decks that see foot traffic. GAF LIBERTY and Mule-Hide self-adhered are peel-and-stick systems for low-slope spots where open flame is not safe. We pick based on your building, budget, and how much sun the roof takes, not on what we feel like installing that week.
Why does my flat roof keep ponding water?
Flat roofs are built with a slight slope toward the drains, not truly level. Over time the deck can sag, drains can clog, or the original slope was never enough to begin with. Water that sits more than 48 hours is the single most common cause of premature flat-roof failure in Florida, because it breaks down the membrane, finds the seams, and adds weight the deck was never meant to carry. We correct the slope and drainage where the structure allows, not just re-cover the low spot.
Can a coating save my roof instead of replacing it?
Sometimes, and we will tell you honestly which situation you are in. If the membrane and deck are still sound and the seams are mostly intact, a fluid-applied Mule-Hide coating can add several years and seal minor issues for far less than a tear-off. If the deck is wet or the membrane is failing, a coating just buys a little time and we will say so. Honesty-first is the point. We would rather earn the replacement later than sell you the wrong fix now.
How long does a commercial flat roof install take?
Most small flat residential sections like a porch or an addition finish in a day or two. Commercial buildings depend on square footage, the number of penetrations and HVAC curbs, and whether the old membrane needs full removal. We give you a realistic timeline in the quote and phase the work around your business hours where we can, so the building keeps running while we work one section at a time.
What warranty comes with a flat or commercial roof?
You get two layers of coverage. The manufacturer material warranty, which runs roughly 20 to 50 years depending on the system and how it is installed, and our workmanship warranty, provided in writing. As a GAF Certified contractor we install GAF EverGuard TPO and GAF LIBERTY to spec, so the system qualifies for the full manufacturer warranty rather than a watered-down version.
Do you document flat roof damage for an insurance claim?
Yes, and only as documentation. We inspect the roof, photograph every finding, and provide an itemized estimate you submit to your carrier. You stay in control of the claim and your insurer makes the coverage decision under your policy. We are a licensed Florida roofing contractor, license CCC1334243, not public adjusters, so we do not handle, file, or negotiate claims. We simply give you and your insurer a complete, accurate record.
Do you offer financing for a commercial or flat roof?
Yes. We offer GreenSky credit-based home improvement financing and Ygrene PACE financing, which is repaid through your property tax bill. Both let you move on an aging or leaking flat roof now instead of waiting for the next storm to force the decision. You can see the options on our financing page and we will walk you through which fits your situation.
Do you handle both residential flat sections and full commercial buildings?
Both. Plenty of Tampa Bay homes have a flat or low-slope section over a porch, lanai, addition, or carport that the pitched part of the roof does not protect. We install and repair those with the same TPO, self-adhered, and modified bitumen systems we use on retail, office, and multi-family buildings. For larger jobs see our commercial roof replacement and commercial roof repair pages.
Do I need a permit for a flat or commercial roof in Tampa Bay?
Almost always, yes. Roof work across Hillsborough, Pinellas, Pasco, Sarasota, Manatee, and Polk is permitted and inspected through the local building department, and requirements vary a bit by county and city. We pull the permit, handle the inspections, and close everything out so the paperwork is clean if you ever sell, refinance, or file a claim. You do not have to chase any of it.
How does the 25 percent rule apply to a flat roof repair?
Florida's current building code generally requires that when more than 25 percent of a roof section is repaired or replaced within a 12-month period, that section be brought up to current code rather than just patched. On a flat roof that often means the whole low-slope section, since it is usually one continuous membrane. We will tell you during the inspection whether your repair stays under that threshold or whether code pushes you toward a full section replacement.
Will a reflective TPO roof actually lower my cooling bill?
It can make a real difference on a building that bakes in full Florida sun. A dark, aging membrane absorbs heat and pushes it down into the building, while a white GAF EverGuard TPO membrane reflects a large share of that sunlight back off the roof. On retail and office buildings with big flat areas, that lower rooftop temperature means the air conditioning works less hard through our long cooling season.
Does coastal salt air affect a flat or commercial roof?
It does, especially on properties near the Pinellas, Sarasota, and Manatee coastlines. Salt air corrodes metal flashing, fasteners, and rooftop equipment faster than it does inland, and it can shorten the life of exposed components on an aging roof. When we work coastal flat roofs we account for that with corrosion-aware detailing and we flag salt-driven wear during the inspection so it does not surprise you later.
My flat roof is leaking now. How fast can you come out?
Quickly. An open leak over a sales floor, a tenant unit, or living space cannot wait. Call us during our hours, Monday through Friday 9am to 7pm and Saturday 9am to 2pm, and we work to get a crew out fast to stop the active water and trace the leak to its real source. For after-hours and storm situations, see our emergency roof repair page.
Why should I choose Integrity Roofing for a flat or commercial roof?
We are a family-run, licensed Florida roofing contractor, license CCC1334243, founded in 2022 and serving the whole Tampa Bay metro. We are GAF Certified and TAMKO Pro Gold Certified, BBB A+ rated, and rated 5.0 on Google. More than the badges, we lead with honesty: photo documentation of everything, clear communication, no high-pressure sales, and straight repair-vs-replace guidance. Our name is our promise.
Serving all of Tampa Bay
Flat & Commercial Roofing across the Tampa Bay metro
We provide flat & commercial roofing across Hillsborough, Pinellas, Pasco, Sarasota, Manatee, and Polk counties. Find your city for local roof types, permit details, and recent work.
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