Build Residential Flat Roofs Today
Build Residential Flat Roofs Today A modern residential flat roof isn’t “black rubber over plywood”-it’s
Welcome to Flattop Roofing
Flat Roofs Are the Only Roofs We Touch
We install, repair, and maintain flat and low-slope roof systems across Brooklyn EPDM, TPO, modified bitumen, and fluid-applied coatings. No steep-slope sidelines, no improvising on a membrane we've never run. Licensed, insured, and reachable when a roof starts taking on water
(929) 702-2949
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FlatTop Roofing
How Long Should a Flat Roof Actually Last?
It comes down to the membrane and how well water leaves the roof. A well-installed EPDM system runs 20 to 30 years; TPO usually lands around 20 to 25; modified bitumen typically 15 to 20. The thing that really decides it is drainage a roof that holds standing water after every rain ages far faster than the material rating suggests. Keep water moving, keep the drains clear, and these systems reach the top of their range.
Years Experience
25
+
Why Do Flat Roofs Start Leaking?
Seams and flashing give out before the field of the membrane does. The weak spots are the transitions - where the roof meets a parapet, wraps a drain, or seals around a pipe or rooftop unit. Standing water sits on those joints and works through, which is why drainage problems and leaks usually show up together.
Timing is what separates a cheap fix from an expensive one. Catch a lifting seam or cracked flashing early and it's a small repair; let it run a season and water gets into the insulation and decking, which turns a patch into a tear-off.
About FlatTop Roofing
A Brooklyn Shop That Decided to Be Good at One Thing
FlatTop Roofing works on flat and low-slope roofs and nothing else. The focus is the whole point - a crew that runs EPDM, TPO, and modified bitumen every week knows the failure patterns, the flashing details, and the drainage quirks that a general roofing outfit only meets occasionally. We're licensed and insured, we pull permits when a job calls for them, and we back our installs with the manufacturer warranties our certifications let us register.
Flat Roofing, Full Stop
No shingles, no slate, no nudging you toward a trade we don't live in. Every job we take is a flat or low-slope system, which means the crew on your roof has done your exact roof many times over.
Certified to Issue Real Warranties
We're trained and approved installers for the membranes we put down, so we can register manufacturer warranties - including no-dollar-limit coverage on qualifying commercial systems - rather than just a contractor's verbal promise.
No Charge to Find Out What You're Dealing With
The estimate is free and so is the diagnosis. We go up, read the membrane, seams, drains, and flashing, and tell you whether you're looking at a repair, a coating, or a full replacement - with the scope written out so you can hold it up against anyone else's bid.
HOW IT WORKS
From the First Look to the Final Walk
Four steps, no mystery about how a job runs from the call to the day we pack up.
We come out and inspect - membrane, seams, drains, flashing, and the deck condition wherever we can read it.
You get a written scope and price, with the membrane and prep spelled out line by line.
The work happens: tear-off and disposal if it's needed, then the new system or the repair goes down.
We walk the finished roof with you, register any warranty, and send photos of what was done.
(929) 702-2949
Why Choose FlatTop Roofing?
Six Reasons Owners and Managers Stay With Us
Plenty of crews can lay a membrane. Here's what tends to bring property owners and building managers back the next time.
A roof that ponds keeps failing no matter how clean the patch is, so we fix the drainage itself - re-sloping with tapered insulation, clearing or adding drains and scuppers - instead of sealing over the problem.
Straight answers on repair versus replacement. A silicone or acrylic coating can add five to ten good years to a sound roof; on a saturated deck it just locks the moisture in. We'll tell you which situation you're actually in.
Commercial work is scheduled around your operation. Restaurants, warehouses, and office buildings stay open while we phase the job so nobody loses a day.
Permits and the DOB paperwork are handled on the jobs that require them, so a project doesn't stall waiting on an inspection.
Old membrane and wet insulation get hauled off the same day - the deck never sits open overnight and your lot doesn't fill with debris.
The crew that quotes your roof is the crew that installs it. No subcontractor handoff, no guessing about who's actually showing up.
FlatTop Roofing
Water Coming Through? We'll Get You Dry-Sealed Today
A split seam, a drain that backed up after a storm, or snow load piling up faster than the roof can shed it can put water inside your building in a matter of hours. Our emergency line is staffed around the clock - we'll get a temporary dry-in over the breach fast, then return for the permanent repair once we can read the full picture in daylight.
Our Services
What We Handle on a Flat Roof
Everything we do lives on flat and low-slope roofs, from a single seam repair to a full tear-off and new system. The deeper guides break each one down further.
Cost Guides
A new TPO or EPDM system, a modified-bitumen recover, a coating, or a one-off leak repair sit at very different price points - and the building's size, roof access, drain count, and how much wet insulation has to come off all move the number. Our cost guides walk through what drives each, so you can read a quote and know exactly what you're paying for.
Leak Repairs
We don't guess at flat-roof leaks. Flood-testing, seam probing, and infrared moisture scanning on larger roofs let us pinpoint where the membrane has opened up and how far the water has spread underneath before we cut into anything.
Repair Services
Lifting seams, sun-blistered membrane, cracked flashing, failed pitch pockets, separated drain rings - these are the everyday repairs that keep a sound roof watertight. We use the manufacturer's own seam tape, primers, and flashing details so the fix bonds to your existing system instead of fighting it.
Residential Flat Roofs
Rear roofs on brownstones, rowhouse extensions, and small apartment buildings almost all run flat or low-slope, and they carry their own headaches - tight access, shared parapets, neighbors a few feet away. We repair and replace residential flat roofs with that reality built into the plan.
Roof Construction
Tear-off down to a clean deck, fresh insulation and cover board, then the membrane - a fully-adhered EPDM, a mechanically-fastened TPO, or a torched modified-bitumen buildup. New construction and gut rebuilds get the same treatment, spec'd to the structure and the load. When a building wants more from its roof, we also install vegetated green-roof assemblies and the curbs, mounts, and flashing that rooftop solar needs to sit watertight.
Roof Damage and Problems
Water that never drains, blisters bubbling up under the heat, membrane shrinking and pulling off the parapets, hail bruising, wind-lifted edges - flat roofs fail in specific, recognizable ways, and each one calls for a different fix: re-sloping, re-flashing, a recover, or a full replacement depending on how far it's gone.
Brooklyn Flat Roof Solutions
Field Notes on Keeping a Flat Roof Alive
We write the things property managers and owners are already searching for - how to tell a coating-worthy roof from a tear-off, what a fair flat-roof quote should include, why your drains matter more than your membrane, and what a Brooklyn winter does to a low-slope system. Plain explanations from people who spend their days on these roofs.
Beat Summer Heat on Your Flat Roof
Beat Summer Heat on Your Flat Roof On a 92°F July afternoon in Brooklyn, your
Cold Flat Roof Construction Service
Cold Flat Roof Construction Service A badly built cold flat roof can dump 30-40 liters
Know the Right Time to Replace Flat Roof
Know the Right Time to Replace Flat Roof Most Brooklyn homeowners only think about replacing
Expert Flat Roof Coating Contractors
Expert Flat Roof Coating Contractors A good flat roof coating can cut heat, extend roof
Trusted Flat Roof Replacement Contractors
Trusted Flat Roof Replacement Contractors In Brooklyn, a real flat roof replacement by a licensed
Custom Flat Roof Drainage Design
Custom Flat Roof Drainage Design A “flat” roof in Brooklyn is supposed to clear standing
Calculate Timber for Flat Roofs
Calculate Timber for Flat Roofs Here’s something most online “flat roof timber calculators” won’t tell
Flat-Roof Questions We Get a Lot
EPDM or TPO - which should go on my building?
Both are strong single-ply membranes. EPDM (the black rubber) handles temperature swings and UV exceptionally well and is forgiving to repair. TPO (usually white) reflects heat, which trims cooling costs on a building that runs its AC hard. We match the membrane to your roof’s exposure, your budget, and whether energy savings matter for how you use the space.
Can flat-roof work be done in winter?
A lot of it, yes. Some adhesives and membranes have temperature minimums and torch-down has its own cold-weather rules, but mechanically-fastened systems and many repairs go down fine in the cold. We also pull snow load off roofs that weren’t built to carry it. Emergencies don’t wait for spring, and neither do we.
How do I know if my roof needs a coating or a full replacement?
It hinges on how much water is already in the system. A coating works on a roof that’s structurally sound and dry underneath – it buys years for far less money. If the insulation is saturated, a coating only seals that moisture in while the roof keeps deteriorating below it. A moisture scan tells us which one you’re dealing with.
What's involved in fixing ponding water?
Ponding means water has nowhere to go – either the roof lacks slope or the drains and scuppers aren’t moving it off. We correct it by building positive slope with tapered insulation, by adding or clearing drains, or by filling low spots, depending on what’s actually causing the pooling on your roof.
Do you warranty your work?
Yes, in two layers. The manufacturer warranties the membrane itself – and on qualifying commercial systems, a no-dollar-limit warranty covers the labor too – while we stand behind our own workmanship separately. You get both in writing.