Direct Answer
What is EPDM roofing, and does it belong on a Savannah commercial building?
EPDM is a synthetic rubber membrane used on flat and low-slope commercial roofs. It ships in 45, 60, and 90 mil thicknesses and in sheets wide enough to cover a large warehouse with very few field seams, and those seams are bonded with primer and splice tape rather than hot-air welded. In Savannah, EPDM earns its place on warehouses, storage and distribution buildings, churches, and older masonry buildings: big, plain roofs with no kitchen grease or chemical exhaust venting onto them. Coastal Roofing of Georgia installs, repairs, and restores EPDM across Chatham, Bryan, Liberty, Effingham, and Glynn counties. Call (912) 312-0507 for a free roof assessment.
Still choosing a membrane? Read TPO vs PVC vs EPDM vs metal for Coastal Georgia. Fixing the roof you already have: flat roof repair in Savannah, GA. The full program sits on commercial roofing in Savannah, GA.
EPDM Roofing Savannah GA Rubber Membrane Installation, Seam Repair & Restoration
EPDM single-ply for Savannah warehouses, churches, storage buildings, and low-slope masonry roofs. We map the wet insulation before anything comes off, detail every seam and penetration by hand, and put the whole scope in writing first. Crews based in Richmond Hill, not dispatched from Atlanta.
What EPDM Roofing Is, and Why Savannah Buildings Still Use It
EPDM stands for ethylene propylene diene monomer. In plain terms it is a rubber sheet, and it has been on American commercial roofs since the 1960s, which makes it the single-ply system with the longest real-world track record. Most of what you see in Savannah is black, though white-surfaced EPDM is available when reflectivity matters. Standard thicknesses are 45, 60, and 90 mil, and 60 mil is the workhorse spec on the commercial jobs we quote.
The advantage that keeps EPDM in the conversation is sheet size. Rubber comes in rolls wide enough to cover a big warehouse bay end to end, so a 40,000 square foot roof can go down with a fraction of the seams a narrower membrane would need. Fewer seams means fewer places for water to find a way in ten years from now. The rubber itself is also very hard to hurt: it shrugs off ozone and UV, stays flexible when the temperature swings, and does not get brittle the way some older membranes did.
The tradeoff is in how the seams are made. EPDM seams are bonded chemically with primer and splice tape, not fused with heat the way TPO and PVC seams are. A well-primed, well-rolled tape seam lasts decades. A rushed one is the first thing to fail, and it is the single most common reason we get called out to an EPDM roof in Coastal Georgia. That is a workmanship variable, not a material defect, which is why who installs the roof matters more on EPDM than on almost any other system.
Coastal Roofing of Georgia is a locally owned commercial roofing contractor working out of Richmond Hill. We install EPDM alongside TPO roofing in Savannah, GA and PVC roofing in Savannah, GA, and we will tell you when one of those is the better answer for your building.
When EPDM Is the Right Call, and When It Is Not
There is no membrane that wins every job. EPDM wins a specific kind of job, and it loses badly on a couple of others. Here is the honest split:
EPDM is the right membrane when…
- • The roof is large and open, so wide sheets mean very few seams
- • The building is a warehouse, storage facility, church, or shop with a plain roof
- • Nothing on the roof vents grease, oil, or solvents
- • The building is unconditioned or lightly conditioned, so reflectivity buys you little
- • Budget matters and you still want a 20 to 30 year service life
- • The existing roof is already EPDM and a compatible re-cover is on the table
Look at another system when…
- • There is kitchen exhaust, fryer venting, or animal fat on the roof (that is a PVC job)
- • Cooling load is the main concern and you want a reflective white roof (TPO or a coating)
- • The roof is cluttered with curbs, penetrations, and equipment, which cancels the seam advantage
- • A utility rebate or energy program requires a rated cool roof surface
- • The deck is failing and the real answer is a tear-off, not a membrane swap
Want the numbers side by side? Our TPO vs PVC vs EPDM vs metal comparison covers service life, seam method, and lifecycle cost, and the commercial roofing materials guide for Coastal Georgia walks the whole menu.
Savannah Building Types Where EPDM Makes Sense
Warehouses & Distribution Buildings
The logistics buildings around Pooler, Garden City, and the port footprint are exactly what EPDM was designed for: enormous, mostly empty roof planes with a handful of penetrations. Wide rubber sheets cut the seam count dramatically, and an unconditioned or lightly conditioned warehouse gets little back from a reflective surface. If the roof you have is already leaking, start with warehouse roof repair in Savannah.
Churches & Older Masonry Buildings
A lot of Savannah's church and fellowship-hall additions are low-slope decks tied into masonry parapets. EPDM handles the parapet and wall terminations well, and the flexibility of the rubber tolerates the movement you get where an older structure meets a newer addition. See our church roofing in Savannah, GA program for scheduling around service days.
Self-Storage & Light Industrial
Storage buildings, contractor shops, and light industrial bays are cost-sensitive assets that still need to stay dry for twenty-plus years. EPDM hits that brief better than almost anything else, and repairs are cheap and fast when a tenant drops something on the roof.
Schools & Municipal Buildings
Institutional owners hold buildings for thirty years and budget on lifecycle, not first cost. EPDM has the longest documented field history of any single-ply, which is why it still shows up in district and municipal specifications. Cafeteria and kitchen blocks are the exception and usually get PVC instead. Our school roofing in Savannah, GA page covers summer-window scheduling.
Apartment & Mixed-Use Low-Slope Decks
Flat sections over apartment corridors, breezeways, and mixed-use podiums are usually small, simple, and out of sight. EPDM is a sensible spec there, and ballasted assemblies can work where the structure supports the load and wind uplift has been checked for the coastal zone.
The Three Ways EPDM Gets Attached, and How We Pick
Fully Adhered
Bonding adhesive over the whole field, membrane rolled into it. Highest wind performance, cleanest finished look, and the method we default to on the coast where design wind speeds are unforgiving. Costs more in labor and adhesive.
Mechanically Attached
Plates and fasteners at the seam laps on the manufacturer's uplift pattern. Faster and less expensive, and a good fit on large, simple roofs, provided the deck will hold the fastener and the pattern is engineered rather than eyeballed.
Ballasted
Membrane laid loose and held by river rock or pavers. Cheap and fast, but the structure has to carry the load and the coastal wind zone has to allow it. We only spec this when both check out, and we say so in writing.
Before Any Of It: The Moisture Survey
We infrared-scan and probe the existing roof first. Wet insulation left under a new membrane is a warranty problem and a mold problem, and it is the number one thing a cheap bid quietly skips. What we find goes in the proposal with photos.
Insulation & Cover Board
Polyiso to current code R-value for Savannah's climate zone, tapered where drainage needs help, and a cover board under the membrane so foot traffic and hail have something to land on.
Seams, Curbs & Terminations
Seams get primed, taped, and rolled, then inspected along their whole length. Pipes get molded boots, curbs and parapets get flashed and terminated with a bar and sealant. This is the part that decides whether the roof makes twenty-five years.
Every finished roof is offered onto the CoastalCare™ roof protection plan for scheduled inspections and photo documentation, which is also what keeps a manufacturer warranty enforceable.
EPDM Repair and Restoration in Savannah
Most of the EPDM work we do in Coastal Georgia is not a new roof. It is an existing rubber roof somewhere between fifteen and thirty years old that has started letting water in. Four failures account for nearly all of it:
- • Seam separation. Older seams were built with liquid splice adhesive that gives up long before the rubber does. We cut back, clean, prime, and re-tape with cover strip. On a roof where seams are failing everywhere at once, re-taping is a stopgap and we will say so.
- • Shrinkage at the perimeter. Rubber tightens over decades and pulls at parapets, curbs, and corners. You see it as bridging at the wall or a seam opening at a corner. The fix is relieving the tension and re-flashing the detail, not smearing sealant on it.
- • Punctures and pipe boots. Dropped tools, HVAC service traffic, and cracked boots around penetrations. Fast, cheap, and worth catching at an inspection rather than during a storm.
- • Ponding and drainage. Standing water is not what kills EPDM, but it will find any weak seam and it accelerates everything else. Tapered insulation, added drains, or crickets solve the cause instead of the symptom.
When the deck and insulation are still dry and the membrane is simply weathered, a coating restoration is usually the cheaper path. A silicone or acrylic system goes over the cleaned and re-detailed EPDM, seals the seams, and buys ten to fifteen more years without a tear-off or a dumpster. That is covered in detail on our commercial roof coating services page.
For an active leak right now, go to commercial roof leak repair or call (912) 312-0507. We run emergency response across Coastal Georgia.
What EPDM Roofing Costs in the Savannah Market
The bands below are general Coastal Georgia market ranges for 2026, not a Coastal Roofing of Georgia price. Your number moves with deck condition, insulation R-value, attachment method, membrane thickness, how many penetrations are up there, and whether the old roof has to come off. We price after we have been on the roof, and the proposal itemizes all of it.
| Project Scope | Typical Market Range |
|---|---|
| EPDM patch or seam repair (small, isolated) | $600 - $3,000 |
| Ballasted EPDM (where structure and wind zone allow) | $5 - $9 / sq ft installed |
| Mechanically attached EPDM re-cover | $6 - $11 / sq ft installed |
| Fully adhered EPDM, full tear-off and rebuild | $8 - $14 / sq ft installed |
| Coating restoration over sound existing EPDM | $3 - $7 / sq ft installed |
Warranty terms available on EPDM assemblies, depending on membrane thickness and how the system is put together:
- • 10 to 15 year material warranty on lighter assemblies, covering the membrane only
- • 20 year system warranty covering material and labor, the common spec on commercial work
- • 25 to 30 year system warranty on thicker membranes and fully adhered assemblies, usually with a manufacturer field inspection before it is issued
For a broader picture of what commercial roof work runs in this market, see commercial roofing cost in Savannah, GA.
EPDM Roofing Service Area
We install and service EPDM across Coastal Georgia and into the South Carolina Lowcountry. Crews run out of Richmond Hill, so a service call is a drive across town rather than a dispatch from another market.
Savannah, GA
Downtown, Midtown, Southside commercial
Pooler, GA
Logistics parks and distribution
Richmond Hill, GA
Home base, commercial and industrial
Brunswick, GA
Glynn County and the Golden Isles
Hinesville, GA
Liberty County commercial and institutional
Statesboro, GA
Bulloch County commercial
Hilton Head, SC
Hospitality and retail low-slope
Bluffton, SC
Commercial and medical office
Beaufort, SC
Lowcountry institutional
Common Questions About EPDM Roofing in Savannah
How long does an EPDM roof last in Coastal Georgia?
A properly installed EPDM roof in Coastal Georgia generally runs 20 to 30 years. The rubber itself often outlives that. What determines the number is the seams and the details: primed, taped, and rolled seams and correctly flashed curbs and parapets get you to the top of the range, and rushed ones get you to the bottom. Scheduled inspections and small repairs caught early add years on top.
Is EPDM better than TPO for a Savannah building?
It depends on the building. EPDM is better on large, plain, unconditioned roofs like warehouses and storage buildings, where wide sheets cut the seam count and reflectivity buys you little. TPO is better when you want a white reflective surface to hold cooling costs down on a conditioned building, and its heat-welded seams are more forgiving of installer variability. Neither one belongs on a roof with grease or chemical exhaust, which is a PVC job.
What does EPDM roofing cost per square foot in Savannah?
General Coastal Georgia market ranges in 2026 run roughly $6 to $11 per square foot installed for a mechanically attached re-cover and $8 to $14 per square foot for a fully adhered tear-off and rebuild. Ballasted assemblies come in lower where the structure and wind zone allow them. Those are market bands, not a quote. Deck condition, insulation, penetration count, and warranty term all move the number.
Can an old EPDM roof be coated instead of replaced?
Often, yes. If the insulation and deck below are dry and the membrane is weathered rather than failing, a silicone or acrylic coating system over cleaned and re-detailed EPDM seals the seams and adds ten to fifteen years without a tear-off. It stops being the right answer once there is wet insulation, widespread seam failure, or deck damage, and a moisture survey is what tells us which situation you are in.
Why do EPDM seams fail, and can they be repaired?
EPDM seams are bonded with primer and splice tape rather than heat-welded, so they depend on surface prep and workmanship. Older roofs built with liquid splice adhesive fail sooner than taped ones. Individual seams repair well: we cut back, clean and prime the rubber, and re-tape with a cover strip. When seams are opening across the whole roof at once, repairs are a stopgap and it is time to talk about restoration or replacement.
Does black EPDM make a building hotter in Savannah?
Black EPDM absorbs heat rather than reflecting it, so on a conditioned building it works against your cooling load. On an unconditioned warehouse or storage building that matters much less. If reflectivity is a priority, the options are white-surfaced EPDM, a reflective coating over the rubber, or a different membrane. Our cool roofing in Savannah, GA page covers the tradeoffs.
Related Savannah Commercial Roofing Services
- • Commercial roofing Savannah GA, the full program overview
- • Flat roof repair Savannah GA, for leaks on the membrane you already have
- • TPO roofing Savannah GA, when a reflective welded membrane fits better
- • PVC roofing Savannah GA, for grease and chemical exposure
- • Commercial roof coating services, to restore rather than replace
- • Commercial roof maintenance Savannah GA, the inspections that catch seam problems early
Get an EPDM Roof Assessment
We will scan the roof for trapped moisture, walk the seams and details, and give you the repair, restoration, and replacement options side by side with real numbers. No pressure, no scare tactics.