Roofer inspecting a modified bitumen roof surface in Queens
Flat & low-slope roofs · Queens, NY

Modified Bitumen Roof Inspection

Modified bitumen roof inspection is what MNM Roofing does across Queens, checking seams, cap sheets, and flashing before small wear turns into a leak inside your building. Licensed and insured, we get on the roof and tell you straight what needs attention now versus what can wait.

  • Licensed & insured
  • Open 24/7
  • Serving Queens since 2009
Roofer inspecting a modified bitumen roof surface in Queens
Close-up of a modified bitumen seam and flashing detail

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Failure points checked

What we check on a mod bit roof

Every layer, every seam, every drain

A mod bit roof fails at specific points, so we check those points directly instead of walking the surface and guessing.

  • Lap seams and seam integrity, torch-applied or set with cold-applied adhesive
  • Cap sheet and base sheet condition, granule coverage, UV degradation
  • Flashing at every penetration, drainage paths, and any spot holding ponding water

Open lap seams are a top cause of bitumen roof sheets leaking inside a building, so we spend real time on them.

Signs you need an inspection now

The roof is already telling you something

These signs almost always mean the membrane needs a closer look, not a mental note for next spring.

Membrane

Bubbling or blistering membrane, or seams gone brittle and cracked

On the roof

Soft spots underfoot, standing water days after rain, granule loss down to the felt

Inside

Water stains spreading across a ceiling, or energy bills climbing for no clear reason

If any of that sounds familiar, the inspection tells you whether it is surface wear or something that already needs a repair crew.

Blistered and cracked modified bitumen membrane surface
Blister & crack check
Built for low-slope and flat roofs

The property types we inspect most

Commercial and low-slope commercial roofs, multi-family and apartment buildings, mixed-use buildings, warehouses, and residential flat roof additions, each with its own weak spots.

Set schedule

Commercial & low-slope commercial

Large membrane fields build up ponding stress and seam wear over years, so we check them on a schedule, not just after a complaint.

Shared deck

Multi-family & apartment buildings

One shared roof deck, so a single failed flashing detail can affect several units below at once.

Added equipment

Mixed-use buildings

Retail and residential loads on the same deck, often with rooftop equipment added well after the original install.

Long seam runs

Warehouses

Big open spans, heavy sun exposure and long seam runs that need checking end to end.

Smaller scale

Residential flat roof additions

The same seam, flashing, and drainage check as a commercial roof, just at a smaller scale.

What you get after

A record you can act on

Every inspection ends with something in writing, not a verbal "looks fine."

Get a free estimate
Deliverable What it covers
01Documented findings Every seam, penetration, and problem area noted by location
02Photo report Images tied to each finding, so you see what we saw
03Repair recommendations What needs attention now versus what to monitor
04Written estimate Priced scope you can compare against what bitumen roof repair typically costs
05Maintenance plan option A preventive schedule if the roof is otherwise sound

Swipe the table sideways

FAQ

Questions before you book an inspection

Open 24/7(347) 835-5040

Under an hour for a residential addition, up to a few hours for a larger commercial or apartment building roof, depending on access, size, and penetrations.

Yes. Both fail differently at the seams, and we check each the way it was installed.

Yes. Same seam, flashing, and drainage check as a commercial roof, at a smaller scale.

You get a written estimate before any work starts, urgent items separated from ones that can wait. Nothing gets scheduled without your approval.

Free estimate

Get your mod bit roof inspected

Call MNM Roofing or reach out through our contact page to get an inspection on the calendar.