Queens Flat Roof EPDM Installation by One Crew, Start to Finish
Flat roof EPDM installation is the whole job when Flat Roofers NY does it. We lay EPDM rubber membrane on Queens rowhouses, brownstones, multi-family and mixed-use buildings and garage roofs. Tear-off, deck prep, seams, flashing and cleanup are all ours.
Want your roof priced?
Every part we install, deck up
This is what goes on your roof, layer by layer. Curious what this spec costs on a roof your size?
| Part | What we install | What it does |
|---|---|---|
| Roof deck | Inspected, soft spots replaced | Solid base for every layer |
| Insulation | Polyiso boards | Keeps heat in |
| Cover board | Rigid board over the polyiso | Protects insulation, takes adhesive |
| Membrane | EPDM, 45 or 60 mil | Keeps water out |
| Seams | Primer, seam tape, bonding adhesive | Joins sheets into one surface |
| Walls and parapets | Flashing and termination bar | Seals roof to brick |
| Edges and drains | Edge metal, roof drains, scuppers | Moves water off |
Three ways the rubber gets held down
EPDM comes in big sheets, and wind lifts anything loose. So it's held down one of three ways.
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Fully adhered
Bonding adhesive glues the sheet to the cover board. Our usual pick for rowhouses and rear extensions.
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Mechanically attached
Fasteners and plates under the seams. It's common on larger low-slope roofs.
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Ballasted
Ballasted roofs sit loose under stone. We only use them where the structure can carry that weight.
What rubber gets your building
EPDM stays flexible through freeze-thaw winters. It doesn't crack as the roof moves. Sun is no problem either, UV and ozone included.
It handles standing water better than other low-slope roofs. Wide sheets mean few seams. It lasts for years, and punctures can be patched. Water already sitting after rain? We'll fix the low spots that hold it before new rubber goes down.
Tear off or go over the old roof?
Wet insulation, layers already stacked up, or a soft deck all mean tearing off to the deck. If the old roof is dry, sound and one layer, a recover can work. Rubber that's worn out gets stripped to the deck and replaced.
Either way, we walk the deck before any membrane goes down. Rotted boards get cut out. With the roof open, it's also the time to upgrade the insulation.
What install day looks like
Every flat roof EPDM installation we run follows these four steps.
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Site walk and measurement
We measure, then check drains, parapets and the deck.
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Old roof removal and deck prep
Old layers come off and bad decking gets replaced.
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Insulation, membrane and seams
Polyiso and cover board first, then rubber, primed and taped at every seam.
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Perimeter detailing and cleanup
Flashing and termination bar go on, and we set the edge metal. Then a walkthrough with you and a clean site.
Questions about your EPDM install
Usually a few working days. Deck repairs can stretch it, and your quote spells out the schedule.
60 mil if the roof gets foot traffic or rooftop units. 45 mil suits small garage and extension roofs. We'll recommend one at the site walk.
Yes, all three. The layers stay the same. We pick the attachment method to suit the roof.
Want a free estimate for your EPDM roof?
We'll walk and measure your roof, then quote the full spec in writing. Rather talk first? Call (917) 473-9811.
Flat Roofers NY(917) 473-9811