About This Service
A synthetic rubber or single-ply membrane built to handle standing water, UV exposure, and temperature swings on the flat and low-slope sections a pitched roof can't cover on its own.
Premium Materials
Every roof and siding job is built with products from the industry's leading manufacturers and suppliers.
James Hardie
GAF
CertainTeed
Versico
Elevate
AZEK
Versatex
Maibec
Riverhead Building SupplyWarranty & Guarantee
EPDM and flat roofing work from Atlantic Roofing carries our 2-year labor warranty on workmanship, in writing before you sign anything. Installation is what we control and installation is what we stand behind — you'll know exactly what that covers and for how long before work begins, not after.
Our workmanship is backed for two years, in writing.
Confirmed in writing before materials are ordered, and held.
Clear, detailed pricing and scope before your project begins.
Debris contained as it comes off the roof, and a nail sweep before we leave.
How It Works
Flat roofing follows our standard 7-step process, with extra attention during inspection to drainage slope and existing flashing condition, since those two details drive most flat roof failures. See the full breakdown on Our Process.
A conversation about your flat or low-slope section.
Free, No Obligation
Drainage slope and flashing condition are closely reviewed.
On-Site EvaluationEPDM vs PVC and seam method presented against your budget.
Options Explained
A clear cost breakdown before scheduling.
Written, Not VerbalWork is scheduled around your timeline.
Firm Start Date
Drainage and flashing detail done right, not patched over.
Drainage Done RightWe close with a walkthrough of the finished work.
Homeowner Sign-Off
Why Atlantic Roofing
Flat roofing is a real, regular part of our work, not a service we get to eventually. We bring the same attention to a garage roof or porch addition that we bring to a full metal or copper install.
If a section can be repaired instead of fully re-membraned, that's what we recommend, even though the bigger job pays more. You get a straight answer based on the actual condition of the membrane.
Flat roofing pricing is broken down clearly in writing before work starts, covering materials, seam method, and labor. No surprises once the crew is on the roof.
Tear-off debris goes into a contained lift instead of your lawn and driveway. We run an Equipter 4000 Series machine on every job and sweep the property before we leave.
Standing water and lifted flashing are what actually shorten a flat roof's life, not the membrane itself. We focus the inspection and installation on getting those two details right.
Based in East Patchogue, you get direct access to the crew doing the work, not a subcontracted call center reading from a script. Questions get answered by the people who know your roof.
Real Work
Flat Roof with Skylight
A rubber membrane roof over a sunroom addition, built around a skylight and finished with a clean drip edge.
Detached Garage Flat Roof
A full EPDM re-roof on a detached two-car garage, tied into the main house roofline.
Rear Addition Flat Roof
Flat roofing over a rear sunroom addition, with the membrane run up and under the existing shingle roofline.
FAQ
EPDM and PVC flat roofing generally cost less per square foot than pitched roofing materials like shingle, metal, or cedar, with the final number shaped by membrane thickness, square footage, drainage complexity, and whether it's a tear-off of an old flat roof or a new installation. Poor existing drainage or extensive flashing repair at transitions can add to the cost. This is general Long Island market-range education, not a quote. A written estimate after inspection is the only accurate way to price your specific roof.
EPDM is a synthetic rubber membrane with glued or taped seams, while PVC is a single-ply membrane typically installed with heat-welded seams and a more reflective surface. Both handle standing water and flat-roof conditions well; PVC tends to cost more but offers a stronger seam and better heat reflection, while EPDM is a proven, cost-effective standard. We'll recommend one based on your roof's specifics and budget.
A properly installed EPDM roof typically lasts 20 to 30 years, with lifespan most affected by seam quality, drainage design, and UV exposure over time. Poor drainage that allows standing water to sit for extended periods is the most common reason an EPDM roof underperforms.
Often, yes. Many flat roof leaks trace back to a specific failed seam or flashing point rather than the entire membrane failing, and those can usually be repaired without a full re-membrane. We inspect first and tell you honestly whether a repair will hold or whether the membrane has reached the end of its service life.
Ready to find out what your roof actually needs? Atlantic Roofing serves homeowners and builders across Suffolk County, NY, from our base in East Patchogue.
Payment accepted: cash, check, and online payment.
