Edge metal
Gravel stop or drip edge at the perimeter set into the membrane plies.
Flat Roofing
Modified Bitumen Roofing Nutley, NJ
A local roofing contractor in Nutley can handle modified bitumen, whether the sheets are torched, self-adhered or set in cold adhesive, and match the method to the building and its fire risk. Call (973) 858-1824 to reach a local roofer.
Modified bitumen, often shortened to mod bit, is the modern descendant of the old tar and gravel roof, with polymers added so the asphalt stays flexible. SBS sheets stay flexible in the cold and can be torched, mopped, cold-applied or self-adhered, while APP sheets are almost always torched. With two or three plies, the finished roof is thick and puncture resistant.
The application method is one of the first decisions on a modified bitumen job. Torching gives tight, fused laps, but the flame is a fire risk near wood decks, parapets and anything combustible. For homes and buildings where open flame is a concern, self-adhered or cold-process sheets are the usual answer.
Knowing the signs makes the first conversation more useful. Note any blisters or bubbles, cracking in the cap sheet, bare spots where granules have washed off and laps that are lifting at the edges. Mention whether the roof has been coated or patched with roofing cement, since that changes how new material will stick.
Many modified bitumen roofing calls in Nutley also turn up a need for flat roof replacement or flat roof repair.
Looking for Nutley modified bitumen roofing? Call (973) 858-1824 to reach a nearby roofing contractor.
Call nowThe process
How a modified bitumen roof is installed
Each layer of a mod bit roof has its own job.
Survey the existing roof
A core cut and a walk of the roof show how many layers exist and whether moisture is trapped. That decides between a tear-off and laying new plies over a sound, dry existing roof.
Tear off old roofing
Old roofing is removed where needed, rotted decking is replaced and the surface is swept clean. Where the roof ponds, tapered insulation is added to move water off.
Lay the base sheet
The first ply is nailed or mechanically fastened on wood, or set in adhesive over insulation. The roofer offsets the laps so no seam sits directly over another.
Apply the cap sheet
A cap sheet with mineral granules is applied over the base sheet. On torched laps, a steady bleed-out of asphalt at the edge shows a good seal.
Detail the edges
Parapets and curbs are flashed with mod bit plies, then capped or counterflashed with metal. Edge metal, drain flashing and pipe flashings complete the system.
Walk the finished roof
Once the roof is done, the crew checks every lap, cleans up and keeps a fire watch if torches were used. The last step is a full walk to confirm laps and flashings are sealed.
What is included
What a mod bit roof includes
Granulated cap
A granulated cap sheet in white or a dark color with fully sealed laps.
Tapered insulation
Insulation and cover board to improve drainage and efficiency.
Base sheet
A smooth reinforced base sheet that gives the roof its first line of defense.
Wall flashing
Reinforced plies at every wall and curb fastened at the top.
Related service
Torch Down Roof Repair Nutley, NJ
Torch down roof repair fixes the leaks that develop in torch-applied modified bitumen: open laps, blisters, splits and failed wall flashing. For blisters and splits, the damaged section is opened up, dried and covered with a larger patch. Loose granules are embedded in the bleed-out so the patch does not weather quickly.
Repairs near walls, vents or wood trim in Nutley call for careful torch handling. Where a flame could reach wood or insulation, a self-adhered patch is the safer choice. A fire watch after torching is a basic part of any torch-down repair.
Related service
Built Up Roofing Nutley, NJ
Built up roofing stacks three or more plies of felt and bitumen into a thick, heavy membrane, finished with a layer of gravel. Bare patches without gravel age quickly in the sun and are often where leaks begin. These roofs can last a long time, but blisters, splits and failed flashings show up as they age.
Most built up roof repairs in Nutley start by clearing the gravel, then patching with new plies and setting gravel back in place. Because these roofs are heavy, recovering over one can strain the structure, and many owners choose a tear-off when the time comes. Many are replaced with modified bitumen, TPO or another single-ply system.
Local help
Modified Bitumen Roofing Near Me
Around Nutley, mod bit replaced a lot of old tar and gravel roofs years ago, and many of those are now due for work. From Nutley out to Glen Ridge, Rutherford, North Arlington and Clifton, roofs range from aging two-ply systems with worn granules to newer self-adhered roofs on additions, so the right method depends on what is up there now.
Need modified bitumen roofing around Nutley? Call (973) 858-1824 for a Nutley roofer who serves the towns around it too.
How the weather here affects roofs around Nutley
Winters here are long and cold, with snow on the roof for weeks at a time and plenty of nights below freezing. Heat escaping from the attic melts snow on the upper roof, and the water refreezes at the colder eaves, building ice dams that push water up under the shingles. Strong coastal storms push rain into every weak spot at the flashing and valleys. That is why roof repair in Nutley is busiest after a hard winter and before the next one.
Why call
Why fix it now
Smaller repairs
Small roof problems caught early usually stay small repairs.
Familiar with local homes
Roofers in Nutley know the roof types and weather wear common in local homes.
Know what happens next
Ask your questions before you agree to anything.
Modified Bitumen Roofing FAQ
How does mod bit compare to tar and gravel?
Both use asphalt, but the plies and surfacing differ. Built up roofing uses many plies of felt mopped with hot asphalt or coal tar and is topped with gravel, while modified bitumen uses fewer, thicker polymer-modified sheets with a granulated cap. Mod bit is lighter and more flexible, which is why it has replaced built up roofing on many buildings.
What is the lifespan of a torch-down roof?
A two-ply modified bitumen roof commonly lasts around 15 to 25 years. Roofs that drain well and keep their granules last longest. A reflective coating applied before the cap sheet wears out can extend its life.
Are torch-applied roofs a fire risk?
Fire risk with torch-down comes from the flame during installation, not the finished roof. Safe practice includes not torching directly on wood, keeping extinguishers on the roof and watching for smoldering after the flame is off. Self-adhered sheets give the same kind of roof without a torch.
Do I need a tear-off for a new mod bit roof?
What is already up there sets the answer. If there is a single, dry, sound roof, a recovery board and new mod bit may go over it. Two existing roofs, wet insulation or widespread blistering call for a full tear-off.
Should I coat my modified bitumen roof?
Coating an aging cap sheet is a common way to add years to a mod bit roof. The roof is cleaned, repaired and often primed so asphalt oils do not stain the coating. White coatings reflect sun, which helps the asphalt last.
More questions? Call (973) 858-1824
Other services that may help
Flat Roof Replacement
Full replacement of failing flat roofs, with a moisture survey deciding tear-off or recover, with tapered insulation where water used to sit.
Learn moreFlat Roof Repair
Repairs for leaking flat roofs, from punctures and seams to clogged drains and wet insulation, so the roof sheds water again without a full replacement.
Learn moreTPO Roofing
Heat-welded TPO membrane for flat and low-slope roofs, built around proper drainage, flashing and edge metal.
Learn moreCommercial Roof Replacement
Tear-off or recover of aging commercial roofs with new insulation and drainage, planned around rooftop units and drains.
Learn more
Looking for something else?
See all roofing servicesNeed modified bitumen roofing in Nutley, NJ?
Call now for Nutley modified bitumen roofing and help in the towns around it.